Control Relay Module UIO (Plug-in)

Manufacture: kidde
Product code: GSA-MCR

The Control Relay Module and the Polarity Reversal Relay Module are part of the Signature Series system ⭐
✅ They are intelligent analog addressable devices available in either plug-in (UIO) versions, or standard 1-gang mount versions.


Consulting hotline: 0944934114
Product information

The GSA-MCR Control Relay Module provides a Form “C” dry relay contact to control external appliances such as door closers, fans, dampers etc. This device does not provide supervision of the state of the relay contact. Instead, the on-board microprocessor ensures that the relay is in the proper ON/OFF state. Upon command the loop controller, the GSA-MCR relay activates the normally open or normally-closed contact.

Standard Features

• Provides one no/nc contact (GSA-CR/MCR) Form “C” dry relay contact can be used to control external appliances such as door closers, fans, dampers etc.

• Allows group operation of sounder bases The GSA-CRR/MCRR reverses the polarity of its 24 Vdc output, thus activating all Sounder Bases on the data loop.

• Plug-in (UIO) or standard 1-gang mount UIO versions allow quick installation where multiple modules are required. The 1-gang mount version is ideal for remote locations that require a single module.

• Automatic device mapping Signature modules transmit information to the loop controller regarding their circuit locations with respect to other Signature devices on the wire loop.

• Electronic addressing Programmable addresses are downloaded the loop controller, a PC, or the SIGA-PRO Signature Program/Service Tool; there are no switches or dials to set.

• Intelligent device with microprocessor All decisions are made at the module to allow lower communication speed with substantially improved control panel response time and less sensitivity to line noise and loop wiring properties; twisted or shielded wire is not required.

• Ground fault detection by address Detects ground faults right down to the device level.


GSA-MCR : mount the UIO motherboard inside a suitable Kidde enclosure with screws and washers provided. Plug the module any available position on the motherboard and secure the module to the motherboard with the captive screws. Wiring connections are made to the terminals on the motherboard (see wiring diagram). UIO motherboard terminals are suited for #12 to #18 AWG (2.5 mm2 to 0.75 mm2 ) wire size

Control Relay Module UIO (Plug-in)

Control Relay Module UIO (Plug-in)





Description Control Relay Polarity Reversal Relay
Type Code Personality Code 8 (Factory Set) Personality Code 8 (Factory Set)
Address Requirements Uses 1 Module Address
Operating Current Standby = 75 µA Activated = 75 µA
Operating Voltage 15.2 to 19.95 Vdc (19 Vdc nominal)
Relay Type and Rating Form C, 2 Amps @ 24 Vdc (pilot duty), 0.5 Amps @ 120 Vac and 0.25 Amps @ 220 Vac (220 Vac is non-UL). Not rated for capacitive loads.
Mounting North American 2½ inch (64 mm) deep 1-gang boxes and 1½ inch (38 mm) deep 4 inch square boxes with 1-gang covers and GSA-MP mounting plates Plugs UIO2R, UIO6R or UIO6 Motherboards North American 2½ inch (64 mm) deep 1-gang boxes and 1½ inch (38 mm) deep 4 inch square boxes with 1-gang covers and GSA-MP mounting plates Plugs UIO2R, UIO6R or UIO6 Motherboards
Construction & Finish High Impact Engineering Polymer
Storage and Operating Environment Operating Temperature: 32°F to 120°F (0°C to 49°C) Storage Temperature: -4°F to 140°F (-20°C to 60°C) Humidity: 0 to 93% RH
LED Operation On-board Green LED - Flashes when polled On-board Red LED - Flashes when in alarm/active
Compatibility Use With: Signature Loop Controller
Agency Listings UL, ULC, CSFM, MEA

Ordering Information

Catalog Number Description

Ship Weight

- lbs (kg)

GSA-CR Control Relay Module (Standard Mount) 0.4 (0.15)
GSA-MCR Control Relay Module (UIO Mount) 0.18 (0.08)
GSA-CRR Polarity Reversal Relay Module (Standard Mount) 0.4 (0.15)
GSA-MCRR Polarity Reversal Relay Module (UIO Mount) 0.18 (0.08)

Related Equipment

27193-11 Surface Mount Box - Red, 1-gang 1 (0.6)
27193-16 Surface Mount Box - White, 1-gang 1 (0.6)
GSA-UIO2R Universal Input-Output Module Board w/Riser Inputs - Two Module Positions 0.32 (0.15)
GSA-UIO6R Universal Input-Output Module Board w/Riser Inputs - Six Module Positions 0.62 (0.28)
GSA-UIO6 Universal Input-Output Module Board - Six Module Positions 0.56 (0.25)
GSA-AB4G Audible (Sounder) Detector Base 0.3 (0.15)


MFC-A Multifunction Fire Cabinet - Red, supports Signature Module Mounting Plates 7.0 (3.1)
GSA-MB4 Transponder Mounting Bracket (allows for mounting two 1-gang modules in a 2-gang box) 0.4 (0.15)
GSA-MP1 Signature Module Mounting Plate, 1 footprint 1.5 (0.70)
GSA-MP2 Signature Module Mounting Plate, 1/2 footprint 0.5 (0.23)
  Signature Module Mounting Plate, 1/2 extended footprint 1.02 (0.46)
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