Square D 8030 COM-221 Programmable Controller

The Square D 8030 COM-221 is a four-output 120 VAC output module designed for use with the SY/MAX Class 8030 programmable controller. This module provides four isolated switch contacts for controlling 120 VAC loads and is intended for pilot-duty or general-duty applications within a 8030 system. The unit draws about 100 mA from the control rack and is rated for 120 VAC operation at 2 A, with a four-segment front panel where each section houses three status LEDs (Logic in yellow, Load in red, and a blown-fuse indicator in red) to help diagnose wiring and load faults quickly. As a part of the 8030 SY/MAX family, the COM‑221 integrates with other 8030 modules and power supplies to form a customized automation rack, making it suitable for process or machinery control tasks that require discrete AC output channels. Common applications include interlocking valves, relay actuation, small motors or actuators, and other line-voltage control tasks in industrial environments where compact, rack-mounted I/O is needed.