Siemens U14JLD62A U 48 Programmable Logic Controller Module

Siemens U14JLD62A is an undervoltage release accessory for 48 V DC control circuits used with JD, LD, and LMD molded-case circuit breakers, providing automatic tripping when the supply voltage falls outside a safe range and including an integrated auxiliary contact. Listed as the 48 V DC UV TRP/AUX option in Siemens Industry catalogs and widely available from authorized distributors, the U14JLD62A is paired with JD/LD/LMD breaker frames and is also represented by related variant U14JLD62AA in catalog assortments. This accessory is designed to enhance protection in industrial power-distribution panels and control circuits, enabling fail-safe shutdowns and providing an electrical signal path via its auxiliary contact for monitoring or interlocking within control logic. Use of the U14JLD62A is specific to 48 V DC downstream control circuits in Siemens' JD/LD/LMD molded-case breaker family, and installation should follow Siemens guidelines to ensure proper contact arrangements and coordination with other protective devices.