RS Components, Ltd. Datasheets for Protective Relays and Monitoring Relays
Protective relays and monitoring relays detect or monitor for abnormal power system conditions.
Protective Relays and Monitoring Relays: Learn more
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| Product Name | Notes |
|---|---|
| 22.5mm wide . All devices can be digitally set and have an LCD display, a fault memory can be switched on. Simultaneous monitoring for overvoltage and undervoltage over the complete... | |
| 3 phase network control relay protects motors and equipment from expensive damage due to voltage faults on 3 phase systems. It monitors the sequence of phases L1, L2, L3 and... | |
| 3 phase network control relays monitor: the correct sequence of phases L1, L2, L3, the total phase failure - Undervoltage and overvoltage from 2% to 20% of Under Voltage Relay... | |
| 3 phase voltage controllers which monitor:- Undervoltage, adjustable from -2% to -20% of Under voltage,- Overvoltage, adjustable from 2% to 20% of Under Voltage,- Presence of the neutral (H3USN only),... | |
| 3 Phase Voltage Monitoring Relay with NO/NC Contact Configuration. Features & Benefits. Incorrect Phase Sequence. Phase loss. Phase undervoltage (0.6 x Un). Adjustable fault delay. LED indication. Write on ID... | |
| 3RN1 thermistor motor protection devices are thermal protection devices that are suitable, in combination with type A PTC resistors (cold conductors), for monitoring the temperature of electrical drives, transformer windings,... | |
| 3UG4 relays that monitor current, power factor and active current are ideal for monitoring the load of motors and functionality of electronic loads. These devices detect the effect of wear... | |
| Adjustable delay from 0.02 to 1 second. LED status indication for ON & TRIP. Integral 35mm current transformer. Changeover relay contact. Remote facilities for Test, Reset and Meter Monitoring Application... | |
| Adjustable set point and hysteresis. Inversion switch - Heating/Cooling control. Analogue output (0-10Vdc) relative to set point or measured temperature. LED indication of relay, probe and supply status. DIN rail... | |
| Adjustment for upper and lower trip levels. Monitors own supply. User-selectable nominal voltage: 24/115/230 V ac. Time delay (from fault) with adjustable setting. Power On Delay (Td): 2 s. LED... | |
| Alternating and direct current control. Automatic AC / DC recognition. Measurement ranges from 2 mA → 10 A. Choice between over- and under-current. Measurement in true RMS. Selectable memory function. | |
| Alternating and direct voltage control. Automatic AC / DC recognition. Measurement ranges from 0.2 V → 600 V. Choice between over- and under-voltage. Measurement in true RMS. Selectable memory function. | |
| Application: 1-phase undercurrent monitoring in three-phase and alternating current networks. 4 measurement ranges from 0.1 → 15 A without an additional current transducer (programmable via rotary control). Fixed hysteresis. Adjustable... | |
| Asymmetrical Recycling, Multi-voltage timer LART in a 17.5mm DIN rail housing. Recycling ON/OFF function. Separate adjustments for ON and OFF ranges. 7 selectable time ranges. Fine adjustment of selected time... | |
| Automatic control and regulation of fluid levels. Choice of functions, filling or draining, high or low alarm or storage of fault in the event of an alarm. Sensitivity adjustable from... | |
| Carlo Gavazzi DFB01 and PFB01 series precise frequency monitoring relays. The DFB and PFB relays monitor their own power supply from 24 to 240 V ac. The relays offer a... | |
| Carlo Gavazzi DIB01 and PIB01 series are precise TRMS AC/DC over or under current monitoring relays. The DIB and PIB ranges allow direct measuring or through current transformer. The current... | |
| Carlo Gavazzi DPC01 & PPC01 series of monitoring relays provide the user with a comprehensive variety of monitoring options such as phase sequence, loss & asymmetry along with under &... | |
| Carlo Gavazzi DTA and PTA series precise thermistor motor temperature monitoring relays. The DTA and PTA series are designed to monitor the temperature of the coils of a motor with... | |
| Carlo Gavazzi DUA52 series DC under voltage monitoring relay that measure its own power supply. The DUA52 can monitor two separate measuring ranges of 8-28 V dc and 38- 58... | |
| Carlo Gavazzi DUA55 series single phase relay for detection of incorrect mains voltage. The DUA55 relay is designed to stop incorrect power supply voltage when different from the desired one. | |
| Carlo Gavazzi DUB01 & PUB01 series of monitoring relays provide the user with a precise TRMS AC/DC over & under voltage monitoring options controlled by DIP switches. LED indication of... | |
| Carlo Gavazzi DUB01 and PUB01 series of monitoring relays provide the user with a precise TRMS AC/DC under or over voltage monitoring solution which can be simply changed via DIP... | |
| Carlo Gavazzi DWB01 & PWB01 series of precise TRMS power factor monitoring relays deisgned for use with 3 phase systems. Suitable for monitoring the actual load of asynchronous & symmetrical... | |
| Celduc ECOM series temperature controller is a compact solution that incorporates the latest measuring and control technology. Pluggable onto a Celduc Relais SU series SSR. The ECOM series features thermocouple... | |
| CM-IVN series coupling units serve to extend the measuring range of the insulation monitoring relay CM-IWN.x. All devices have two different terminal versions: Screw Connection Technology and Easy Connect Technology. | |
| CM-IWS series relays serve to monitor insulation resistance and can be configured to the requirements of the applications. All devices have two different terminal versions: Screw Connection Technology and Easy... | |
| Compact, low cost unit, with LED tripped indicator and 1 change over relay contact. Reset is automatic when sensor has cooled down. Control and signalling voltages should have the same... | |
| Control relay allowing measurements of sub-current with the current transformer to output 50 mA standard. Effective control of alternating current of 10 AV to 100 A AC. Threshold and hysteresis... | |
| Control relay with power supply monitoring. MUS: controls over- or undervoltage with a selectable memory function. MUSF: controls over- or undervoltage. Adjustable time delays. Control at 50 Hz, 60 Hz... | |
| Controls the operation of pairs of motors, compressors, generators etc. Can be used for simultaneous operation of two motors as well as cascade operation of a number of motors. Monitors... | |
| Current isolator that can be mounted on DIN rail individuallyor with other units. The housing is 102.5mm high by 6.2mm wide. The performance specifications are similar to standard sized MCR... | |
| Delay On Operate, Multi-voltage timer LEDO in a 17.5mm DIN rail housing. Supply initiated Delay On Operate timing function. 7 selectable time ranges. Fine adjustment of selected time range. Multi-voltage... | |
| Depending on the configuration, the current monitoring relays CM-SRS.1 and CM-SRS.2 can be used for over- or undercurrent monitoring in single-phase AC and/or DC systems. The current to be monitored... | |
| Depending on the configuration, the voltage monitoring relays CM-ESS.1 and CM-ESS.2 can be used for over- or undervoltage monitoring in single-phase AC and/or DC systems. The voltage to be monitored... | |
| Detection of over voltage, under voltage and phase failure. Network error diagnosis through more LEDs. Response values for over and under voltage separately adjustable. Adjustment ranges 0.9 → 1.3 UN... | |
| Detection of phase failure in three-phase systems. Single-phase connection also an option. Rest current principle. Adjustable phase sequence. LED display for each phase. 17.5 mm overall width Monitoring Application =... | |
| Detection of under/over frequency in alternating voltage networks, switchable. No auxiliary voltage. Switchable frequency range for 50 or 60 Hz networks. Adjustable response value. Adjustable hysteresis. Rest current principle. LED... | |
| Detects if speed or frequency is under or over the set-point value, function is switchable. Adjustable hysteresis. Universal input, configurable for different sensors. Rest current principle. LED status display. Overall... | |
| Detects incorrect phase sequence/failure. Monitors own supply. Adjustable for nominal voltage setting. Threshold voltage 70% of phase voltage setting. Time delay: <30ms (on delay: ≤500ms). 1 x SPDT relay output... | |
| Detects insulation faults in earthed networks such as RCCBs but without interruption. For monitoring and preventive maintenance of electrical systems. Detection ranges from 30 mA → 10 A with a... | |
| Detects Over frequency. OFR relay energises if frequency rises above trip level – red LED off, contacts 11, 12 /21 & 22. Adjustable trip level: 40 → 60Hz. Adjustable hysteresis. | |
| Detects over-current condition. Adjustment for trip level. Monitors current in 3-phase supply. Time delay (from fault) with adjustable setting: 0.2 to 10s. 1 x DPDT relay output 8A. LED indication... | |
| Detects phase loss. Detects incorrect phase sequence. Monitors own supply. LED indication for correct/incorrect phase sequence. DIN Rail housing. Installation/Data sheet supplied Monitoring Application = Phase Supply Voltage = 400... | |
| Detects under and over-voltage condition. Adjustment for under and over trip levels. Adjustable hysteresis. Monitors own supply. Separate relays for under and over. Time delay: 200 ms (from fault). 2... | |
| Detects under and over-voltage condition. Adjustment for upper and lower trip levels. Monitors own supply. Time delay (from fault) with adjustable setting. Power On Delay (Td): 2s. 1 x SPDT... | |
| Detects under and over-voltage condition. Adjustment for upper and lower trip levels. Monitors own supply. Time delay (from fault) with adjustable setting. Power On Delay (Td): 5s. 1 x SPDT... | |
| Detects under and over-voltage condition. Adjustment for upper and lower trip levels. Monitors own supply. User selectable nominal voltage (380, 400 or 415V). Time delay (from fault) with adjustable setting:... | |
| Detects under-voltage condition. Detects phase loss. Detects neutral loss (4-wire version). Adjustment for trip level and hysteresis. Monitors own supply. Time delay: 200ms (from fault). 1 x DPDT relay output... | |
| DIN standard case, which may be front panel or chassis mounted (11-pin socket 403-869). Monitors the speed of machinery via the inputs from RS inductive proximity switches, open collector transistor... | |
| Each current pulse operates the IK8702 remote switchs contacts that then remain in the adopted position until the next current pulse. Low space requirements. Reduced wiring requirements. Quiet switching. 10mA... | |
| Easy operation without complex menu systems. Certification to DIN 3440 Monitoring Application = Temperature Supply Voltage = 24 - 240 V ac/dc Contact Configuration = SPST Time Delay = 0... | |
| Electronic voltage/phase loss and rotation monitoring relays for single and three-phase applications. Monitoring Application = Voltage Supply Voltage = 208 - 480 V Contact Configuration = SPDT Electrical Phase =... | |
| Electronic voltage/phase loss and rotation monitoring relays for single and three-phase applications. Monitoring Application = Voltage Supply Voltage = 220 - 240 V Contact Configuration = SPDT Voltage Sensitivity =... | |
| Electronic voltage/phase loss and rotation monitoring relays for single and three-phase applications. Monitoring Application = Voltage Supply Voltage = 380 - 415 V Contact Configuration = SPDT Voltage Sensitivity =... | |
| Extremely simple operation with no complex menu. High-end evaluation units with digital display suitable for wide temperature ranges & variety of sensor types. Settable hysteresis. Fast troubleshooting by detecting wire... | |
| Extremely simple operation. Settable hysteresis. Fast troubleshooting by detecting wire breakage. Relay configuration: SPNC, SPNO Monitoring Application = Temperature Supply Voltage = 110/230 V ac Contact Configuration = SPDT Temperature... | |
| Extremely simple operation. Settable hysteresis. Fast troubleshooting by detecting wire breakage. Relay configuration: SPNC, SPNO Monitoring Application = Temperature Supply Voltage = 24 - 240 V ac/dc Contact Configuration =... | |
| For controlling the filling or emptying level of conductive liquids. 0.1 to 5 sec adjustable time delay (anti-wave effect) . Universal model for 24 to 240V AC/DC . Power supply... | |
| For controlling the filling or emptying level of liquids with 2 sensors . 0.1 to 5 sec adjustable time delay (anti-wave effect). Universal model for 24 to 240V AC/DC . | |
| For monitoring the power consumption of electrical loads. For monitoring AC and DC currents. Relay for overcurrent or undercurrent monitoring. Measurement frequency up to 5 kHz. LED indicates operational readiness... | |
| For monitoring three-phase networks, e.g. lifts, escalators, hoisting systems, etc. Detects voltage asymmetry, phase loss, reverse voltage and phase sequence. Impervious to symmetrical harmonics up to distortion factor of K... | |
| For monitoring under/over frequency of alternating voltages, switchable functionality. Adjustable hysteresis. Large measurement voltage range. Rest current principle. LED status display. Overall width 17.5 mm Monitoring Application = Frequency Supply... | |
| GICs profesional range of single and three phase supply monitors that are feature rich for industrial and agricultural use. The range covers phase loss/phase reversal, phase unbalance. Available with under... | |
| H3US and M3US relays control three-phase networks: Overvoltage between phases and undervoltage between phases. The H3USN relay controls three-phase networks: Overvoltage between phases and neutral, undervoltage between phases and neutral,... | |
| Hiquel ICC series monitors a single phase current signal. It is suitable for use with alternate and direct currents. Three different current ranges available to improve the measuring precision. Thresholds... | |
| Hiquel ICP monitors phase-failure, phase-sequence and phase-asymmetry for supplies with or without neutral. Thresholds for alarm functions, alarm reaction time and phase-asymmetry can be easily adjusted using the rotary switches... | |
| Hiquel ICV series monitors a single phase voltage signal. It is suitable for use with alternate and direct voltage signals. Three different voltage ranges available to improve the measuring precision. | |
| HUL and HUH control relays are designed to control AC or DC voltages. They automatically recognise the shape of the DC or AC signal (50 Hz or 60 Hz). Control... | |
| In the event of an error, the relay for the acoustic signal and the relay for the visual signal are both activated. The user can acknowledge the alarm on the... | |
| Interval (Single Shot), Multi-voltage timer LEIN in a 17.5mm DIN rail housing. Supply initiated Interval (Single Shot) timing function. 7 selectable time ranges. Fine adjustment of selected time range. Multi-voltage... | |
| L Series relay range of Timers, Control and Three Phase relays incorporate the latest technology and offer a wide range of user adjustable features. 17.5mm DIN rail housing. Microprocessor based. | |
| Mainly used for asynchronous motors (cage rotors) on a single-phase or 3-phase network with significantly changing loads. The internal electrical isolation of the supply and measuring circuits means it can... | |
| MINI MCR series limit value switches, with adjustable hysteresis and delay time and spring-cage connection. Power supply possible via the foot element (T-connector). Status and error indication via two diagnostic... | |
| Monitoring input: Pulse from NPN open collector proximity switch or volt-free contact Monitoring Application = Speed Supply Voltage = 110 V ac Contact Configuration = SPDT Time Delay = 0.5... | |
| Monitoring input: Pulse from NPN open collector proximity switch or volt-free contact Monitoring Application = Speed Supply Voltage = 230 V ac Contact Configuration = SPDT Time Delay = 0.5... | |
| Monitoring of 3 phase systems for undervoltage or phase failure and activation of security lighting in accordance with VDE 0108 (IEC 255, VDE 0435 Part 303). Single phase connection also... | |
| Monitoring of insulation resistance of DC networks. For DC networks, large voltage range in network to be monitored 12 Vdc → 280 Vdc. Alarm value adjustable for earth fault R... | |
| Monitoring of insulation resistance of unearthed AC and DC networks. For AC and DC network currents with 0 → 500 V and 10 → 1000 Hz. Also monitors non-powered networks. | |
| Monitoring of three-phase systems for direction of rotation. No auxiliary voltage. LED display lights up when a clockwise rotation field is detected. 17.5 mm overall width. In accordance with IEC... | |
| Monitoring relays from Carlo Gavazzi can also be used as 1-phase or 3- phase over current monitoring relays when connected with MI or MP current transformers.Owing to the built-in latch... | |
| Monitors 1-phase & 3-phase supply voltages for phase failure On fault, relay de-energizes & yellow LED turns off. 5% fixed hysteresis. 0.5 sec fixed OFF delay Monitoring Application = Phase... | |
| Monitors the speed of rotating machinery using any 3-wire NPN sensor or other volt-free contact and will switch the output at the pre-selected speed . Response time of <0.4 seconds... | |
| Monitors three-phase systems for phase sequence. No response delay. 1 changeover. LED indicates the relay status. Continuous voltage range 208 → 440 V, 50 / 60 Hz Monitoring Application =... | |
| Multi range. Adjustable hysteresis. Latching facility. Adjustable fault delay. Adjustable start -up delay. Switchable relay inversion. LED indication. Write on ID tab. Dimensions: H78 x W45 x D99mm Monitoring Application... | |
| Multi range. Adjustable hysteresis. Latching facility. Adjustable fault delay. Switchable relay inversion. LED indication. Write on ID tab. Dimensions: H78 x W45 x D99mm Monitoring Application = Voltage Supply Voltage... | |
| Multi-function unit with 2 changeover contacts. Detects Open or Short circuit sensor and has auto or manual reset options Monitoring Application = Temperature Supply Voltage = 24 - 240 V... | |
| Multi-sensor evaluation relay, able to monitor up to 6 PTC sensors. Over-temperature of any one sensor will cause the output contact (1N/O + 1N/C) to operate Monitoring Application = Temperature... | |
| Multifunction timer LMMT in a 17.5mm DIN rail housing. 7 selectable functions. 7 selectable time ranges. Fine adjustment of selected time range. LED warning indication if function is changed whilst... | |
| Multifunctional device for monitoring three-phase networks for undervoltage / overvoltage. Phase sequence asymmetry, mains failure (in accordance with IEC 255, VDE 0435 part 303). Monitoring Application = Phase, Voltage Supply... | |
| MUS and MUSF voltage control relays monitor single phase DC network voltages. These products monitor their own supply voltage. MUS relays allow the operator to choose between two operating modes:... | |
| NIVEAU CONTROL RELAY - Control Relays - Monitoring Relays | |
| Omron K8DT-AS/AW single phase current relays detect errors in motors and other equipment through current changes. Monitor AC or DC currents with one Relay. Use with commercially available current transformers. | |
| Omron K8DT-LS conductive level controllers are Ideal for water level control. Offering sensitivity adjustment and an ON-delay timer that is ideal as a countermeasure for waves on liquid surfaces. Sensitivity... | |
| Omron K8DT-PH three phase sequence and phase loss monitor protects motors and other equipment from unstable voltages, detecting phase sequence and phase loss for three-phase power supplies. Phase loss detection... | |
| Omron K8DT-PM three phase sequence and phase loss monitor protects motors and other equipment from unstable voltages, detecting phase sequence and phase loss for three-phase power supplies. Phase loss detection... | |
| Omron K8DT-PZ three phase sequence and phase loss monitor protects motors and other equipment from unstable voltages in the power supply system. Detect overvoltages, undervoltages, voltage asymmetry, phase sequence, and... | |
| Omron K8DT-TH temperature monitoring relay, ideal to prevent heater overheating. Featuring a self-latching output to contribute to safe equipment operation. Set the temperature with simple rotary switches. Connect a thermocouple... | |
| Omron K8DT-VS single phase voltage monitor relay detects abnormal voltages applies to equipment to protect against equipment failure. Can be used in either overvoltage or undervoltage mode. Monitor AC or... | |
| Omron K8DT-VW single phase voltage monitor relay detects abnormal voltages applies to equipment to protect against equipment failure. Can be used in either overvoltage or undervoltage mode simultaneously. Monitor AC... | |
| On fault, relay de-energizes & yellow LED turns off. No delay Monitoring Application = Phase, Voltage Supply Voltage = 185 - 265 V ac, 320 - 460 V ac Contact... | |
| On fault, relay de-energizes & yellow LED turns off. No delay Monitoring Application = Phase, Voltage Supply Voltage = 320 - 460 V ac Contact Configuration = SPST Voltage Sensitivity... | |
| On fault, relay de-energizes & yellow LED turns off. No ON delay Monitoring Application = Phase Supply Voltage = 200 - 500 V ac Contact Configuration = DPDT Electrical Phase... | |
| Phase controller for resistive loads. For constant output up to 300 W. Built-in EMI filter to level B. LED status display. Overall width 53 mm Monitoring Application = Phase Supply... | |
| Premium level control relay which provides the user with a versatile solution to ensure your application is covered. Suitable for use with conductive liquids, such as tap water, sea water,... | |
| Professional range of Eaton current monitoring relays from the EMR4 series. The main function of the relays is the monitoring of single phase AC and DC networks. The relays are... | |
| Professional range of Eaton current monitoring relays from the EMR5 series. The main function of the relays is the monitoring of single phase AC and DC networks. The relays are... | |
| Professional range of frequency monitoring relays for industrial and agricultural needs. Wide auxiliary supply voltage. 110 to 240 vac or 220 to 440 vac. Over frequency or under/over frequency versions. | |
| Professional range of galvanically isolated Rotational Speed Monitors for detection of over & under range window & value limits. This series is environmentally versatile and comes with a variety of... | |
| Professional thermistor relay containing protection againt Phase sequence fault. Monitors and protects motors with integrated PTC resistor sensors. Protection against overheating. Wide auxiliary supply voltage. LED indications. Auto, manual and... | |
| Professional thermistor relay with protection againt phase sequence, phase loss and phase asymmetry faults. Monitors and protects motors with integrated PTC resistor sensors. Protection against overheating. LED indications Monitoring Application... | |
| Protection and monitoring of motors with integrated PTC thermistor temperature sensors. 1 NO, 4 A (230 V, AC-12). Automatic reset Monitoring Application = Temperature Supply Voltage = 220 - 240... | |
| Provides continuous monitoring of important network and system parameters. Operating states indicated using coloured LEDs. Errors can be sent to a controller via a floating contact or can shut down... | |
| Range of relays for current, voltage and phase control, time delay relays with frontal regulation by trimmer and fault tripping indication Monitoring Application = Level Supply Voltage = 230 V... | |
| Range of relays for current, voltage and phase control, time delay relays with frontal regulation by trimmer and fault tripping indication Supply Voltage = 24 - 240 V ac, 24... | |
| Range of relays for current, voltage and phase control, time delay relays with frontal regulation by trimmer and fault tripping indication Supply Voltage = 24 V dc, 24 - 240... | |
| Real effective value measurement . Applicable for frequencies with 40-500Hz AC and DC . All devices can be digitally set and have an LCD display, a fault memory can be... | |
| Relè per il controllo del superamento dei limiti inferiore. Superiore impostati per la corrente, montaggio su guida DIN 22,5mm. Le seguenti caratteristiche sono applicabili a tutti i modelli Monitoring Application... | |
| Relays HWTM and HWTM2 check the availability of the 3 phase network and the temperature of the motors using integrated PTC probes. The phase and temperature control functions are independent... | |
| Relpol MT-T Series multifunction timers have a compact design for optimum space availability. These timers feature a wide AC/DC power supply range and are DIN Rail mountable. Two independently controled... | |
| Relpol professional range of phase loss and phase failure monitoring relays. Monitoring Application = Phase, Voltage Supply Voltage = 220 - 460 V Contact Configuration = SPDT Voltage Sensitivity =... | |
| Residual current monitors (RCMs) perform a wide range of functions for protecting people and machine, they enable the detection of system malfunctions and facilatate troubleshooting before the protective device is... | |
| Senses pulses from a proximity detector mounted near a machine shaft rotating at up to 10000rpm. LED indication of relay status and supply. DIN standard case, which may be front... | |
| Separate relay & LED operation for three phase monitoring V & thermistor monitoring T. The relay monitors the following:. Incorrect phase sequence/rotation. Threshold voltage 60% of 400Vac. Phase failure/loss. Phase... | |
| Siemens 3UG range of level monitoring relays for conductive liquids with screw terminals. To be used with 2 or 3 pole sensors. Comprising of 1 yellow LED for indicating the... | |
| Single phase over- and undercurrent monitoring in 3 phase and alternating current networks. 4 measurement ranges from 0.1 → 15 A without an extra current transducer (programmable via bridges). Adjustable... | |
| Small current monitoring relay combined with built-in current transformer with a solid state output. Easily installed via a 2 wire connection. 12mm hole allows for a variety of current carrying... | |
| Special relay for alternating loads. Suitable for applications with pumps, compressors, air conditioning or refrigeration units. 2 independent NO output, 12 A. 2 independent control signals, insulated from supply. Modular... | |
| Standard unit with 1N/O and 1N/C contact. Two LEDs are provided for TRIP and READY Monitoring Application = Temperature Supply Voltage = 24 - 240 V ac/dc Contact Configuration =... | |
| Standstill recognition for 3-phase and single-phase asynchronous motors, e.g. for safety door lock releases on machine tools or for activating parking brakes. The BD5936.17 measures the induced voltage of the... | |
| Suitable for use in any climate. Screw and snap-on mounting onto 35mm standard mounting rail. Identification number and letter for switching elements 31 E. Ambient temperature during operating phase -25... | |
| Supply monitoring relays with combined phase failure and neutral loss detection. Phase loss failure detection. Neutral loss detection. Phase reverse detection. Phase asymmetry. Adjustable over & under voltage trip level. | |
| Switch initiated Delay Off (Delay On Release), Multi-voltage timer LESW in a 17.5mm DIN rail housing. Switch initiated Delay Off timing function. 7 selectable time ranges. Fine adjustment of selected... | |
| Switching position display. Open connection terminals. Touch protection to DIN 0106 Part 100 Supply Voltage = 230 V ac Contact Configuration = DPDT | |
| TELE ENYA series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The ENYA series have a self-extinguishing plastic body with an IP rating... | |
| TELE ENYA series AC current monitoring for single phase mains. Featuring overcurrent and undercurrent monitoring and a single change over contact. The ENYA series have a self-extinguishing plastic body with... | |
| TELE ENYA series coupling relays used to connect control signals to and from a PLC. 1 change over contact. Width 17.5 mm . LED indicator. Screw terminals Supply Voltage =... | |
| TELE ENYA series level control monitoring relay for conductive liquids. Featuring pump up and pump down monitoring and a single change over contact. The ENYA series have a self-extinguishing plastic... | |
| TELE ENYA series temperature monitoring relay of the motor winding with fault latch for temperature sensors. Featuring short circuit monitoring of the thermistor line and integfrated test or reset key... | |
| TELE GAMMA series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The GAMMA series have a self-extinguishing plastic body with an IP rating... | |
| TELE GAMMA series AC/DC current monitoring for single phase. Featuring overcurrent and undercurrent monitoring and two change over contacts. The GAMMA series have a self-extinguishing plastic body with an IP... | |
| TELE GAMMA series level control monitoring relay for conductive liquids. Featuring pump up and pump down monitoring and a single change over contact. The GAMMA series have a self-extinguishing plastic... | |
| TELE GAMMA series single and three phase power factor monitoring relay. Multifunction monitoring in a slim easy to use package. The GAMMA series have a self-extinguishing plastic body with an... | |
| TELE GAMMA series temperature monitoring relay of the motor winding with fault latch for temperature sensors. Featuring short circuit monitoring of the thermistor line and integfrated test or reset key... | |
| TELE KAPPA series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The KAPPA series have a self-extinguishing plastic body with an IP rating... | |
| TELE KAPPA series AC current monitoring for single phase mains. Featuring overcurrent and undercurrent monitoring and a single change over contact. The KAPPA series have a self-extinguishing plastic body with... | |
| TELE VEO series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The VEO series have a self-extinguishing plastic body with an IP rating... | |
| TELE VEO series AC current monitoring for single phase mains. Featuring overcurrent and undercurrent monitoring and a single change over contact. The VEO series have a self-extinguishing plastic body with... | |
| TELE VEO series temperature monitoring relay of the motor winding with fault latch for temperature sensors. Featuring short circuit monitoring of the thermistor line and integfrated test or reset key... | |
| The 3RN10-22 is able to monitor two sensors for ALARM and TRIP conditions. Alarm operates 1N/O contacts with additional changeover contact for TRIP condition Monitoring Application = Temperature Supply Voltage... | |
| The 72 series of relays from Finder are level control relays for conductive liquids. Sensitivity range (5 to 150) kΩ adjustable. Delay time (0.5s or 7s) switch selectable. Emptying or... | |
| The ABB CM-WDS relay is from the CM cycle monitor range. This cycle monitoring relay features a watchdog function, operates with a rated control supply voltage of 24 V DC,... | |
| The AI897 insulation monitor displays the insulation resistance of unearthed 3 phase and alternating current systems to earth. The device works according to the quiescent current principle, that is, the... | |
| The AI898 insulation monitor displays the insulation resistance of unearthed direct current networks to earth. It does not detect symmetrical earth faults. In practice, these faults are generally insignificant. The... | |
| The BA9041 can recognise the phase sequence L1 - L2 - L3 of a three-phase network and therefore avoid an incorrect rotational direction. The BA9041 phase sequence relay monitors the... | |
| The BA9053 / 410 current relay is a static measurement relay with isolated measurement and auxiliary circuits. It is suitable for monitoring direct and alternating currents (compensated to effective value). | |
| The CM range of thermistor motor protection relays are used to control motors equipped with PTC temperature sensors. The PTC temperature sensors are incorporated in the motor windings to measure... | |
| The CM-MPN.x2 are multifunctional monitoring relays for three-phase mains. They monitor the phase,parameters phase sequence, phase failure, over and undervoltage and phase unbalance.The threshold,values for over- and undervoltage and phase... | |
| The CM-MPSx3 are multifunctional monitoring relays for three-phase mains. They monitor the phase parameters phase sequence, phase failure, over- and undervoltage and phase unbalance. CM-MPS.23 also monitors the neutral for... | |
| The CM-PAS.x1 are monitoring relays for three-phase mains. They monitor the phase parameters phase sequence, phase failure and phase unbalance. The threshold value for phase unbalance is adjustable Monitoring of... | |
| The CM-PSS.x1 are monitoring relays for three-phase mains. They monitor the phase parameters phase sequence, phase failure, over- and undervoltage. The threshold values for over- and undervoltage are fixed. Monitoring... | |
| The CM-PVS.x1 are monitoring relays for three-phase mains. They monitor the phase parameters phase sequence, phase failure, over- and undervoltage. The threshold values for over- and undervoltage are adjustable. Monitoring... | |
| The control of AC and DC voltage. 0.2V to 60V (EUL) and 10 to 600V (EUH) measurement ranges. Selection of over-voltage and under-voltage, by means of a dip switch. Delay... | |
| The current window monitoring relays CM-SFS.2 can be used for the simultaneous monitoring of over- and under-currents in single-phase AC and/or DC systems. The two c/o contacts can be configured... | |
| The expertly designed CM-UFD range of grid feeding relays ensures safe and reliable monitoring of numerous grid parameters when feeding energy into the public grid. Main features include-. Monitoring of... | |
| The HHZ control relay controls frequency variations on 50 Hz or 60 Hz networks. This HSV frequency monitoring relay from Crouzet has been designed to control its own supply voltage,... | |
| The HSV relay controls the speed (or, more strictly speaking, the operating rate, or frequency) of a process (moving walkway, conveyor) using discrete sensors. It can be used to monitor... | |
| The HWUA 3 phase network control relay monitors:- The correct sequence of phases L1, L2, L3,- Total phase failure,- Undervoltage and overvoltage from 2% to 20% of Under Voltage Relay,-... | |
| The IK 9094.11 AC/DC24V 0 to 150°C is a Temperature Monitoring Relay with detection sensor of in-circuit broken wire. It features LED indicator for operation and state of output relay.Perfect... | |
| The IK8839 is a single phase relay for monitoring the operating current of electrical consumers and works on the quiescent current principle. Its i-k current path is galvanically separated from... | |
| The IL9075/001 monitors all three fuses in the three-phase network to produce, for example, an automatic shutoff and switch lock of a three-phase motor if one or more of the... | |
| The IL9079 is an undervoltage relay for detecting short interruptions. Enclosure version for the IL 9079 has a depth of 59 mm. Terminals are at the bottom for installation systems... | |
| The intelligent LOCC-BOX system has been designed to offer you a variety of settings and configurations that are suitable for a range of applications. This includes- Power on-effect for switching... | |
| The load monitor is suitable for monitoring electrical industrial drive systems with variable motor loads. Monitoring Application = Phase Supply Voltage = 400 V ac Contact Configuration = DPDT Electrical... | |
| The MIC control relay is designed to control overcurrents (or undercurrents). This MIC current monitoring relay from Crouzet has a host of excellent features, including a built-in current transformer, LED... | |
| The Mini Analog Pro signal conditioners from Phoenix Contact are the first 6mm range with plug-in connection technology. Using the latest switching technology, applications are made quicker and easier with... | |
| The MK 9056N monitors compliance with the phase sequence L1-L2-L3 in three-phase current networks. Detects phase sequence errors. Output contact 2 changeovers. Overall width: 22.5 mm Monitoring Application = Phase... | |
| The MK9052 motor protection relay is used to prevent thermal overloads in motors (for example as caused by high switching frequencies, heavy start-up loads, single phase operation, interrupted cooling, high... | |
| The Omron K8AK series monitoring relays are expertly designed for accurate and reliable monitoring for industrial facilities and equipment. The K8AK-AW/AS relays are suitable for undercurrent and overcurrent monitoring, which... | |
| The Omron K8AK series monitoring relays are expertly designed for accurate and reliable monitoring for industrial facilities and equipment. The K8AK-LS monitoring relays are ideal for liquid level control monitoring... | |
| The Omron K8AK series monitoring relays are expertly designed for accurate and reliable monitoring for industrial facilities and equipment. The K8AK-PW/PM monitoring relays are designed to bear greater resistance to... | |
| The Omron K8AK series monitoring relays are expertly designed for accurate and reliable monitoring for industrial facilities and equipment.The K8AK-TH relays are compact and slim, suitable for temperature alarms and... | |
| The Omron K8AK series monitoring relays are expertly designed for accurate and reliable monitoring of industrial facilities and equipment. The K8AK-VW/VS relays are ideal for monitoring overvoltages and undervoltages, which... | |
| The relay monitors: Presence of supply. Correct rotation. Correct phase angle. Dimensions: H78 x W45 x D99mm Monitoring Application = Phase Supply Voltage = 400 V ac Contact Configuration =... | |
| The SIRIUS 3TX7 narrow design interface relays are coupling elements used to connect control signals to and from a PLC. Coupling device (interface) as a connector module. Control and peripheral... | |
| The temperature monitoring relays CM-TCS monitor over-temperature, under-temperature, or temperatures between two threshold values with PT100 sensor. When the temperature falls below, or exceeds the maximum value, the output relays... | |
| The unit is for use with equipment that has in-built thermistors to DIN 44081 and will monitor up to 6 thermistors in a chain. When the resistance of the thermistors... | |
| The voltage window monitoring relay CM-EFS.2 can be used for the simultaneous monitoring of over- (>U) and undervoltages (Monitoring Application = Voltage Supply Voltage = 24 - 240 V ac/dc... | |
| Thermistor motor protection relay with and without ATEX approval. For detection of. - Temperature limit exceedance. - Wire breakage in sensor circuit. - Short circuit in sensor circuit (ATEX version)... | |
| Thermistor motor protector, 110Vac - Control Relays - Monitoring Relays | |
| Thermistor motor protector, 230/110Vac - Control Relays - Monitoring Relays | |
| Thermistor motor protector, 24-240V - Control Relays - Monitoring Relays | |
| Thermistor Protection Relays offer protective functions that are easily added and applied to motor control circuits. Typical applications include VFD Controlled Motors, Transformers, Bearings and Compressors. Monitors over temperature. Connection... | |
| This Broyce Control 45UFR electrical relay unit is designed to monitor the frequency of its own supply. The 45UFR is used for monitoring under frequency conditions, whereby the relay de-energises... | |
| This range of multifunctional monitoring relays allows to monitor electrical as well as physical system parameters. EMD Monitoring Relays can measure: Currents. Voltages, 1- and 3-phase. Phase sequences. Real powers. | |
| Three-phase network control: phase order, total phase loss. Multi-voltage from 3 x 208 → 3 x 480 Vac. Controls its own voltage supply. Measurement in true RMS. LED status indicator. | |
| Three-phase network control: phase sequence, phase loss, imbalance (asymmetry), under and overvoltage. Single to multi-function product range. Multi-voltage from 3 x 208 → 3 x 480 Vac 0. Controls its... | |
| Threshold and hysteresis separately adjustable. Selection of over-current or under-current by means of a dip switch. (Operating range quoted is relative to nominal supply voltage (Un) ) Monitoring Application =... | |
| Timing step relay, step relay, light constantly ON, staircase relay. Incandescent lamp load and halogen lamp load 2000W, Fluorescent lamp load 1000W. LED indication of power and operation status. Switch... | |
| Use: overcurrent monitoring in DC and AC current networks. Four measurement ranges that can be set via a rotary switch. Adjustable response value, fixed hysteresis. Adjustable switching delay. Rest current... | |
| Used in combination with PTC thermistor sensors for thermal protection of machines. As soon as the nominal trip temperature (TNF) of the sensor is exceeded, the relay detects this variation... | |
| Voltage isolator that can be mounted on DIN rail individually or with other systems. The housings are 102.5mm high by 6.2mm. The performance specifications are similar to standard sized MCR... | |
| Voltage monitoring for 3 phase systems. 3 phase mains, 50 → 400 Hz. Arithmetic average measurement. Adjustable response and fall-back values. For mains with or without a neutral conductor. Closed... | |
| Voltage monitoring for AC and DC networks. For measuring AC and DC voltages. Relay for overvoltage or undervoltage monitoring. Measurement frequency up to 5 kHz. LEDs indicate operational readiness and... | |
| Wide ambient Temperature monitoring & controlling range with inbuilt temperature sensor. Protection Relay against variations of the ambient temperature set point (StH & StL). 3 digit LCD display for real... |
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