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Est siga-SB4 detector base
All detector mounting bases have wiring terminals that are accessible from the room-side after mounting the base to the electrical box. The bases mount to North American 1-gang boxes and to 3 inch or 4 inch octagon boxes, 1 inches (38 mm) deep. They also mount to European BESA and 1-gang boxes with 60.3 mm fixing centers. The SIGA-SB4, SIGA-RB4, and SIGA-IB4 mount to North American 4 inch sq. electrical boxes in addition to the above boxes. They include the SIGA-TS4 Trim Skirt which is used to cover the mounting ears on the base. The SIGA-AB4G mounts to a 4 sqare box only.
Standard Base SIGA-SB, SIGA-SB4 - This is the basic mounting base for GE Security Signature Series detectors.
