Square D 8501RS14V20 General Purpose Relay Coil

Square D 8501RS14V20 is a four-form-C (4PDT) miniature general-purpose relay with a 120 V AC coil, part of the Square D Harmony 8501R family. It is designed for plug-in use in the 8501NR45 socket base, enabling quick replacement and clean wiring in control panels. The device provides four Form-C contacts (4 normally open and 4 normally closed) in a 14-pin/terminal configuration, allowing multiple independent switching circuits from a single relay. With a 120 VAC coil, the relay is rated to switch up to 8 A at 120 V AC and deliver up to 0.5 HP at 277 V AC, maximizing compatibility with common industrial loads. The coil and contacts are configured for a compact, mountable package suitable for panel and DIN-rail enclosures, and the unit is UL listed with Square D relay sockets and CSA certified. Typical applications include general control circuits in automated machinery, process control panels, HVAC zone controls, motor-control logic, and other multi-pole switching tasks where multiple circuits must be switched concurrently. The 8501RS14V20’s socket-based design and compatibility with the 8501NR45 base simplify replacement and maintenance in legacy Square D control systems, while preserving the familiar 14-terminal layout used by 8501R relays.