The HRDR411SB30MR is a recycling timer combining an electromechanical relay and microcontroller timing circuitry, designed for direct control of heavy loads such as compressors, pumps, and lighting. It operates on 120VAC with fixed time delays of 1 second for ON time and 30 minutes for OFF time, with the OFF time as the first delay. The unit includes a bypass/reset switch option to interrupt the sequence and energize the output relay. It features SPDT, non-isolated contacts rated for 125/240VAC at 30A resistive, and has an encapsulated circuitry for protection against shock, vibration, and humidity. The device is surface-mounted with a single #10 screw and measures 76.7 mm high, 51.3 mm wide, and 38.1 mm deep. Terminals use 0.25 in. (6.35 mm) male quick-connects, and it operates within a temperature range of -40°C to 60°C. Repeat accuracy is ±0.5% or ±20ms, whichever is greater.
The HRDR Series combines an electromechanical relay and microcontroller timing circuitry. It offers 12 to 230V operation in five ranges and factory fixed, onboard or externally adjustable time delays with a repeat accuracy of ±0.5%. The high switching capacity of the output contacts allow for direct control of heavy loads like compressors, pumps, motors, heaters and lighting. A bypass/reset switch option allows operator to interrupt normal recycling sequence and energize output relay. An excellent choice for OEM applications. Operation (Recycling with Reset Switch)Upon application of input voltage, the ON time T1 begins and output relay energizes. At the end of the ON time, the output relay de-energizes and the OFF time T2 begins. At the end of the OFF time, the output relay energizes and the cycle repeats as long as input voltage is applied. Some recycling timers have the OFF time as the first delay.Reset: Removing input voltage resets output and time delays, and returns sequence to the first delay.
| Littelfuse, Inc. | |
|---|---|
| Product Category | Electromechanical Relays |
| Product Number | HRDR411SB30MR |
| Product Name | Recycling Timer |
| Mounting | Surface mount with 1 #10 (M5 x 0.8) screw |
