Addressable Relay Base


The TR-B224RB is a 6” mounting base with a built-in form C relay contact. The TR-B224RB lets you control a wide variety of normally open and normally closed applications. Because the relay is addressable, the relay device can be located at any point in the signaling line circuit. Triga series detectors intended for use with the Triga Series fire alarm control panel (FACP) plug into the TR-B224RB.


The TR-B224RB can be mounted on a variety of junction boxes as shown in the tables below.


U.S. Junction Box Selection Guide*
[table “2” not found /]


Metric Junction Box Selection Guide*
[table “3” not found /]


*Box depth is contingent on base and wire size. Refer to the National Electric
Code or applicable local codes for appropriate recommendations. †With 3.0 mud ring

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• One form C contact relay
• Support for Class A and Class B wiring
• Fully supervised
• Plug-in mounting provides ease of installation
• Tamper-proof feature prevents removal of the detector without the use of a tool
• Range of mounting options to meet any application
• TR-B501 allows for aesthetically pleasing installation with Recessed Mounting Kit
• UL Listed


Height: 1.2” (3.1 cm)
Diameter: 6.1” (15.5 cm)


Wire Gauge: 18-14
Operating Voltage: 15-32VDC
Standby Current: 500 μA max @ 24VDC.


Coil: 2 coil latching relay
Contact: 1 Form C contact
Resistive: 2A @ 30 VDC
Inductive: 300 mA @ 100 VDC ( with 0.35 PF or greater) 300 mA @ 120 VAC (with 0.35 PF or greater) 1A @ 30 VDC (with 0.6 PF or greater)


Operating Temperature: 32º-120ºF (0ºC – 49ºC) Humidity: 10 to 93% non-condensing)


• TR-B224RB-WH: 6” Relay Base, White
• TR-B224RB-IV: 6” Relay Base, Ivory


The TR-B224RB is compatible with the following Triga series detectors:
• TR-Photo-W / TR-Photo-IV Photoelectric Smoke Detector
• TR-Photo-T-W / TR-Photo-T-IV Photoelectric Smoke Detector with Thermal
• TR-PTIR-W / TR-PTIR-IV Multicriteria Detector
• TR-FIRE-CO-W / TR-FIRE-CO-IV Multicriteria Detector
• TR-HEAT-W /TR-HEAT-IV Fixed Temperature Thermal Detector
• TR-HEAT-ROR-W / TR-HEAT-ROR-IV Rate-of-Rise Detector with Thermal
• TR-HEAT-HT-W / TR-HEAT-HT-IV Fixed High Temperature Thermal Detector

The TR-B224RB-WH / TR-B224RB-IV are compatible with the following Triga Series FACPs:
• TR-2100R / TR-2100B
• TR-2100ECSR / TR-2100ECSB
• TR-R2100R / TR-R2100B

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