SIGA-IM

The Edwards SIGA-IM is an intelligent isolator module from the Signature Series, designed to protect SLC loops by automatically isolating short circuit faults while allowing the rest of the circuit to continue operating normally.
It continuously monitors line voltages and opens the circuit segment between the nearest isolators when a fault is detected, automatically restoring full functionality once the short is cleared, with no manual addressing required.
Key Specifications
Feature
Specification
Display
Green LED (polling normal / fault indication)
Function
Automatic short-circuit isolation
Circuit Protection
Up to 25 devices between isolators
Max Resistance
6 Ω between isolators
Addressable
1 SLC address (Signature protocol)
Communication
Signature Data Circuit
Standard Functions
Self-diagnostics, Ground fault detection by address, Auto-mapping
Mounting
2-gang box or 4" square box
Aux Input
N/A
Power Supply
15.2–19.95 VDC (loop-powered, 45μA standby)
Operating Temp
0°C–49°C (32°F–120°F, 0-93% RH)