CHQ-DRC2(SCI) Description

CHQ-DRC2(SCI)/SIL is a Dual Relay Controller designed to provide two general-purpose relay outputs, each output can be driven separately for control of
such devices as dampers or for control of plant and equipment shutdown. The monitored input can be used for local power supply fault monitoring or as a general-purpose input.

 

The unit is also available as a DIN Rail mountable version; both models feature an integral short-circuit isolator. The CHQ-DRC2(SCI)/SIL utilizes simple DIL switches for reliable addressing. A back box is also available (CHQ-BACKBOX) which, when used in conjunction with the CHQ-DRC2(SCI)/SIL, increases the IP rating to IP65.

 

Features & Specifications

- Single loop address

- Loop Powered

- 2 Independently controlled changeover relays

- Relays contact rated at 30 VDC at 1 A

- Both models approved by LPCB

 

Operating Voltage: 17 - 41 VDC
Low Power Mode: (0.75s) 170 μA
Quiescent current: 300 μA
Current consumption: 22 mA ± 20 % (polling)
Current in short-circuit: 8 mA
Maximum short-circuit current: 1 A (loop)