Square D 8501PG-4 Enclosed AC Magnetic Relay Unit

Square D 8501PG-4 Enclosed AC Magnetic Relay Unit is a general-purpose NEMA-style relay from Square D (Schneider Electric) designed for panel mounting in industrial control systems. It features a 120 V AC coil designed for 60 Hz operation, and the enclosed housing protects the coil and contact assembly in dusty or harsh environments. As part of the 8501 family, this relay provides robust switching capability for logic and power control in machines, conveyors, HVAC systems, and other equipment where reliability and compact enclosure are important. The 8501PG-4 designation identifies a specific configuration within the enclosed 8501 relays, offering a compact, self-contained solution for multi-line control circuits in demanding industrial applications.