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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