Edwards EST SIGA-REL Releasing Module

The Edwards EST SIGA-REL is an intelligent releasing module for Signature Series loops. It provides control for sprinkler, pre-action, deluge, and clean-agent systems using two supervised release circuits and two supervised pre-release NACs, with built-in delay timers and configurable abort modes to help prevent unwanted discharge. Key Specifications: Type: Intelligent addressable releasing module Core Function(s): Two supervised release circuits, two supervised pre-release NACs, manual release input, abort input, first-alarm Form C relay Loop/Protocol: Signature Series SLC Power: 24 VDC riser for releasing and NACs; SLC 5.2 to 19.95 VDC Indicators/UI: Front LEDs for power, alarm, release active, abort, trouble, and data Operating Range: 32 to 120 °F; 0 to 93 percent RH, non-condensing Notes: Field-selectable manual and automatic delay timers; four abort modes; uses six device addresses; up to ten modules per loop Compatible Accessories: RELA-EOL – Polarized end-of-line relay for non-polarized solenoids 276A-REL – Single-action manual release station 278A-REL – Double-action manual release station RELA-ABT – Manual abort station RELA-SRV-1 – Service disconnect switch MFC-A – UL-listed module enclosure System Compatibility: EST3, EST3X, and iO Series control panels using a Signature loop controller.