Kidde KI-SB4 — standard Signature Series detector base with outer mounting lugs for a 4-inch square box, supplied with a GSA-TS trim skirt.
The base is what a Signature Series detector plugs into. It carries the signaling line circuit through screw terminals that must be broken at each device for supervision, and it adds two terminals for a GSA-LED remote indicator, so a detector hidden above a ceiling is annunciated where someone will see it.
- Terminals 4 and 5 feed a GSA-LED; 10 Ω maximum resistance per wire
- Wire size 12 to 18 AWG, with 16 and 18 AWG preferred
- Base mounting screws 18 lbf-in max, terminal screws 12 lbf-in max
- 32° to 120°F, 0 to 93% RH non-condensing
- Listed to UL 268, UL 521 and CAN/ULC-S529-09
- Fits single-gang, 3-1/2" and 4" octagon, BESA and 4" square boxes
The plain KI-SB is the same base without the four-inch lugs, and its skirt is ordered separately. The KI-RB4 relay base shares the lugs and skirt but Kidde states it does not support the GSA-LED, so the remote-LED terminals belong to the KI-SB and KI-SB4 only.
