Provides an additional 4 or 8 relays to a fixed gas detection system
The RLY-4 and RLY-8 are remote relay devices that offer up to four and eight (respectively) additional SPDT dry contact relays to a fixed gas detection system
 
Key Features
Increases the number of available relays
User selectable gas alarm activation level for each relay (set at the controller)
User selectable “Failsafe” and latching operation (set at the controller)
ON/OFF Delay configurations (set at the controller)
User configurable to revert to a default state if connection is lost with the controller (set at the controller)
Modbus® RS-485 RTU communication
Standard water / dust tight, corrosion resistant enclosure
 
Description
The RLY-4 and RLY-8 are remote relay devices that offer up to four and eight (respectively) additional SPDT dry contact relays to a fixed gas detection system. The RLY-4 is specifically designed to communicate with both the QCC Quad Channel Controller and the FCS Flexible Control System via Modbus® communications protocol. The RLY-8 is designed to work with the FCS and FCS-8 only. In the event that the connection is lost between the controller and the remote relay, a user configurable default state can be set to ensure the relays continue to operate as required.
The relays are rated 5 amps @ 240 VAC each and can be used to control remote alarms, strobes, exhaust fan starters, make up air fan contactors, etc. Both devices come in a standard water / dust tight, corrosion resistant ABS / polycarbonate enclosure with a hinged, secured door.