Edwards EST SIGA-IM Fault Isolator Module

NOTE: This part is discontinued by the manufacturer. Replace with: SIGA-IM2. The Edwards EST SIGA-IM is a line fault isolator module for Signature Series loops. It opens on a short to keep the rest of a Class A SLC operating, then automatically re-energizes and restores service when the fault clears. Electronic addressing, automatic device mapping, and a green status LED support fast checks and service. Key Specifications: Type: Intelligent addressable SLC fault isolator module Core Function(s): Opens on short, auto-restores when fault clears; isolates only the faulted section of a Class A circuit Loop/Protocol: Signature Series SLC Power: 15.2 to 19.95 VDC Current: 45 µA typical in standby and when activated Indicators/UI: Green LED flashes when polled (normal) Mounting: 2-gang box or 4-inch square box with 2-gang cover; accepts 12 to 18 AWG conductors Operating Range: 32 to 120 °F; 0 to 93 percent RH, non-condensing Notes: Maximum circuit resistance 6 ohms between isolators; uses one device address Compatible Accessories: SIGA-MP1 – Signature module mounting plate (1 footprint) SIGA-MP2 – Signature module mounting plate (half footprint) SIGA-MP2L – Signature module mounting plate (half footprint, extended) System Compatibility: Signature Series control panels using a Signature loop controller.