Edwards GSA-CRH Control Relay Module

The Edwards GSA-CRH Control Relay Module is an intelligent addressable high-power relay module designed for use with compatible Edwards Signature Series fire alarm systems. The Edwards GSA-CRH Control Relay Module provides a reliable interface between the fire alarm control panel and external devices requiring high-voltage or high-current switching. Therefore, it is ideal for controlling equipment such as door holders, fans, dampers, HVAC shutdown circuits, and other life safety functions.

Edwards GSA-CRH Control Relay Module Function

The Edwards GSA-CRH Control Relay Module provides one programmable relay with two Form C contact sets. As a result, the module can control external equipment in response to fire alarm system events. In addition, both relay contact sets transfer simultaneously when the module is activated or restored.

High-Power Relay Capability

The GSA-CRH is specifically designed for applications requiring high-power switching. Consequently, it supports loads rated up to 120/240 VAC or 24 VDC. Moreover, the relay can be used for controlling door closers, fan controllers, dampers, equipment shutdown circuits, and similar devices.

Intelligent Addressable Communication

The Edwards GSA-CRH communicates through the Signature Series signaling line circuit (SLC). Therefore, each module occupies a single address on the loop and is electronically programmed by the control panel. Furthermore, there are no address switches or rotary dials to set, simplifying installation and commissioning.

Automatic Device Mapping

As part of the Signature Series platform, the module supports automatic device mapping. As a result, the fire alarm system can identify the module’s location relative to other devices on the loop. Additionally, distributed intelligence improves system response time and reduces sensitivity to wiring characteristics and electrical noise.

Easy Installation and Maintenance

The Edwards GSA-CRH Control Relay Module features removable terminal blocks that simplify wiring and future replacement. Consequently, installation time is reduced while maintenance procedures become more efficient. Moreover, a bi-color status LED provides visual indication of normal and active conditions for troubleshooting and testing.

Technical Specifications

• Model: GSA-CRH
• Type: High Power Control Relay Module
• Relay Configuration: One relay with two Form C contact sets
• Contact Ratings:
  • 120/240 VAC
  • 24 VDC
• Communication: Signature Series SLC
• Addressing: Electronic
• Wire Size: 12 to 18 AWG
• Operating Temperature: 32°F to 120°F (0°C to 49°C)
• Relative Humidity: Up to 93% non-condensing
• Compatible with VS and VM Series control systems
• Weight: Approximately 0.4 lb (0.15 kg)

Applications

The Edwards GSA-CRH Control Relay Module is ideal for:

• Door holder release circuits
• HVAC shutdown control
• Smoke control systems
• Fan control applications
• Damper control circuits
• Equipment shutdown functions
• Commercial fire alarm systems

Reliable High-Power Control Solution

The Edwards GSA-CRH Control Relay Module combines intelligent addressable communication, high-power switching capability, and Signature Series reliability in a compact module. Overall, it enhances fire alarm system functionality by providing dependable control of critical building equipment and life safety systems.

GSA-CRH