The Edwards SIGA-IB is a Signature Series isolator detector base for Edwards EST4 (EN54) analogue addressable systems. It provides room-side wiring terminals and a built-in line fault isolator, so isolation can be added at detector locations. For Class A wiring, isolator modules and isolator bases are required, with no more than 50 addressable devices between isolators. The SIGA-IB4 version includes a trim skirt for 4-inch square boxes.
Key features
- Built-in line fault isolator
- Room-side wiring terminals
- Mounts to North American one-gang boxes, 3½ or 4-inch octagon boxes or 4-inch square boxes (4-inch versions include the SIGA-TS4 trim skirt)
Technical specifications
- Type: isolator detector base
- Isolation: built-in line fault isolator
- Class A wiring: no more than 50 addressable devices between isolators
- Data sheet reference: E85001-0712
- Signature loop controller: 3-SSDC2-E (single) or 3-SDDC2-E (dual) on the EST4 panel
