Schneider Electric SE 8501LO20 Magnetic Relay

Schneider Electric’s Square D 8501LO20 magnetic relay is a NEMA-style control relay in the 8501 family, designed to energize and switch control circuits inside industrial panels. The coil is rated for 110/120 VAC at 50/60 Hz, making it compatible with common North American line supplies. As part of the 8501 line, it integrates with standard Square D master cartridges to form modular relay banks that can be configured for different contact arrangements in a panel. This relay is used to switch signals and control loads within machine tools and other automation equipment, serving as a robust, field-replaceable component in control circuits. In the broader 8501 family, higher-current configurations are achieved by pairing with 8501 master cartridges such as the XC4, which can provide up to 20 A ratings in appropriate configurations.