System Sensor B224RB-WH Plug-in Relay Base (White)

The System Sensor B224RB-WH is a white plug-in relay base for Select Series intelligent addressable detector heads, adding one Form C latching relay contact for auxiliary control like door closure or elevator recall. The relay supports selectable short-delay (60 to 100 ms) or long-delay (6 to 10 sec) operation and mounts using a plate that fits common box sizes to help avoid surface-mount installations. Key Specifications: Type: Intelligent plug-in relay detector base (Select Series) Core Function(s): Adds one Form C latching relay contact for auxiliary control from an intelligent addressable detector location Loop/Protocol: Intelligent addressable base used with compatible plug-in detector heads on supported addressable SLC systems Power: 15 to 32 VDC; 170 uA standby Relay: 1 Form C contact, 2-coil latching; selectable delay: 60 to 100 ms (short) or 6 to 10 sec (long) Mounting: Mounting plate fits 4-inch square (with or without plaster ring), 4-inch octagon, 3.5-inch octagon, single-gang, and double-gang boxes Indicators/UI: Optional tamper-resist feature to help prevent detector removal without a tool System Compatibility: Used with compatible Select Series intelligent addressable plug-in detector heads on supported addressable SLC systems (panel compatibility depends on the detector and system). Note: White (-WH) bases are suitable for use with FlashScan, Velociti, and LiteSpeed communications protocols only.