RLY-4 and RLY-8 Remote Relays

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

Applications

  • Parking Facilities
  • Vehicle Repair Shops
  • Manufacturing Plants
  • Food Processing Plants
  • Cold Storage Facilities
  • and many more...

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.

 

Mechanical
Enclosure
ABS / Polycarbonate, corrosion resistant
Copper coated interior to reduce RF interference
Weight
RLY-4: 1.08 kg / 2.4 lbs
RLY-8: 1.24 kg / 2.75 lbs
Size
254 x 218 x 109 mm / 10.0 x 8.6 x 4.3 inches
Input/Output
Relay
RLY-4: 4 SPDT relays, rated 5 amps @ 240 VAC
RLY-8: 8 SPDT relays, rated 5 amps @ 240 VAC
Communication
Modbus® RS-485 RTU
Electrical
Power Requirement
24 VDC, 3W, Class 2 (24 VDC supplied by the Controller)
Wiring
4-conductor shielded minimum 18 AWG stranded within conduit
Fuses
Thermal, resetting
Environmental
Operating Temperature
-20°C to 40°C (-4°F to 104°F)
Operating Humidity
15 - 90% RH non-condensing
Certifications
Conforms to:
CSA-C22.2 No. 205-12, UL508 (Edition 17):2007
EMC Directive 2004/108/EC, EN 50270:2006, Type 1, EN61010
FCC. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
RoHS compliant circuit boards
Product Codes
RLY-4
Offers four remote SPDT relays rated 5 amps @ 240 VAC, Modbus® RS-485, dust / water tight, corrosion resistant enclosure
RLY-8
Offers eight remote SPDT relays rated 5 amps @ 240 VAC, Modbus® RS-485, dust / water tight, corrosion resistant enclosure
Compatible Devices
QCC-M, QCC-B
A maximum of one RLY-4 device (offering a maximum of 4 remote relays) can be connected to the QCC.
FCS-M, FCS-B
A maximum of fourteen RLY-4 devices (offering a maximum of 56 remote relays) can be connected to the FCS (with no RLY-8).

A maximum of seven RLY-8 devices (offering a maximum of 56 remote relays) can be connected to the FCS (with no RLY-4).
FCS-8-M, FCS-8-B
A maximum of two RLY-4 devices (offering a maximum of 8 remote relays) can be connected to the FCS-8.

A maximum of one RLY-8 device (offering a maximum of 8 remote relays) can be connected to the FCS-8.

Options, Accessories and More...