Reliance Electric Automate 57663-A Output Module

Reliance Electric Automate 57663-A Output Module is a two-channel dual contact relay output module for the AutoMate PLC family (also listed as model 45C66A). It provides two independently isolated normally open contacts capable of switching up to 3 A per channel at 250 V AC, with support for DC loads via 30/110 V DC ratings, and a control (coil) input range of 1–20 V AC RMS or 1–30 V DC. The module is intended for installation in an AutoMate I/O rack and measures about 3.0 inches wide by 6.0 inches deep by 1.0 inch high, with a weight near 4 ounces. Each channel includes LED indicators for basic diagnostic status, aiding quick verification of operation and fault conditions. As part of Reliance Electric’s Automate line, this legacy output module is used to drive AC-powered devices such as pumps, fans, heaters, or relays in industrial automation applications, where robust, isolated, high-current switching is required from a compact two-channel package.