Schneider Electric Square D 8501-L020 Control Relay

Schneider Electric's Square D 8501-L020 is a compact NEMA-style control relay featuring a 110–120 VAC coil, designed to energize an internal contact set in industrial control circuits and automate basic switching tasks within machine controls, panels, and process equipment, including interlock and signaling applications. This L-series variant belongs to the 8501 family, a line of general-purpose relays commonly used to interface sensing devices with power loads, enabling logic, sequencing, interlocks, and simple motor control applications in environments subject to vibration, dust, and temperature extremes. Exact contact configuration, amperage rating, and the number of contacts are model-specific within the 8501-L020, so consult the official datasheet or product page to confirm whether the variant provides normally open, normally closed, or both contacts, as well as any required accessories for mounting and wiring. Designed for panel mounting in standard enclosures, the 8501-L020 is compatible with Square D sockets and is intended to replace older relays in legacy equipment, supporting straightforward cross-references for maintenance and upgrades in control systems, and it is commonly used where a reliable, low-current control signal is needed to operate a higher-power load.