The Edwards SIGA-RB is a Signature Series relay detector base for Edwards EST4 (EN54) analogue addressable systems. It includes a relay whose normally open or normally closed operation is selected during installation, allowing local control of equipment when the detector operates. The relay position is supervised to avoid it being accidentally jarred out of position. The SIGA-RB4 version includes a trim skirt for 4-inch square boxes.
Key features
- Built-in relay, normally open or normally closed selected on installation
- Supervised relay position
- 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: relay detector base
- Relay contact: dry contact, 1 A (pilot duty) @ 30 Vdc
- Data sheet reference: E85001-0712
- Signature loop controller: 3-SSDC2-E (single) or 3-SDDC2-E (dual) on the EST4 panel
