Schneider Electric 8501 LM-1 Terminal Block Assembly

Schneider Electric's 8501 LM-1 Terminal Block Assembly is a Square D terminal-block accessory that pairs with Class 8501 Type L relays, delivering a single normally open (1 NO) contact for relay-to-wiring interconnections in control panels. Marketed as 8501-LM1 or LM-1, this assembly serves as the dedicated terminal interface between a Square D 8501 Class L relay and field wiring, enabling straightforward connections in automation circuits that use the 8501 family. The part is documented in reseller listings as a 8501-LM1/LM-1 Terminal Block Assembly for 8501 Relays and is noted as discontinued by the manufacturer, with remaining stock found through third-party distributors. In practice, it is a niche replacement part for legacy Square D 8501 installations where a compact, single-contact terminal block is required to complete a relay-based interconnection, sometimes referenced with an A600 NEMA designation in distributor catalogs.