RLY-4 and RLY-8 Remote Relays

Provides an additional 4 or 8 physical relays to a fixed gas detection system plus an additional 2 or 4 horn/strobe drives

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
  • Includes 2 (RLY-4) or 4 (RLY-8) horn/strobe drive outputs
  • 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 is specifically designed to communicate with the QCC Quad Channel Controller and the FCS Multi Channel System Controllers via Modbus® communications protocol. It offers 4 physical relays rated 5 amps @ 240 VAC and 2 horn/strobe drives rated 0.5 amp @ 24 VDC.

The RLY-8 is designed to work with the FCS models only. It offers 8 physical relays rated 5 amps @ 240 VAC each and 4 horn/strobe drives rated 0.5 amp @ 24 VDC.

The RLY-4 and RLY-8 can be used to control remote alarms, strobes, exhaust fan starters, make up air fan contactors, etc. 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. 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 in
Input/Output
Relay
RLY-4: 4 SPDT relays rated 5 amps @ 240 VAC
RLY-8: 8 SPDT relays rated 5 amps @ 240 VAC
Horn/Strobe
RLY-4: 2 horn/strobe drives 0.5 A @ 24 VDC
RLY-8: 4 horn/strobe drives 0.5 A @ 24 VDC
Communication
Modbus® RS-485 RTU
Electrical
Power Requirement
24 VDC, 3W, Class 2 (24 VDC supplied by the Controller)
Power Consumption
RLY-4: 3 watts
RLY-8: 6 watts
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 4 remote SPDT relays rated 5 amps @ 240 VAC, 2 horn/strobe drives 0.5 amps @ 24 VDC, Modbus® RS-485, dust / water tight, corrosion resistant enclosure
RLY-8
Offers 8 remote SPDT relays rated 5 amps @ 240 VAC, 4 horn/strobe drives 0.5 amps @ 24 VDC, Modbus® RS-485, dust / water tight, corrosion resistant enclosure

Options, Accessories and More...