Siemens U01JLM6 Mining Duty Undervoltage Release

Siemens U01JLM6 Mining Duty Undervoltage Release is a 120 VAC undervoltage trip accessory designed for Siemens Sentron molded‑case circuit breakers in the JM and LM frame families, enabling automatic tripping when the supply falls below the rated voltage. The device is intended for mining and heavy‑duty industrial applications and is paired with JM/LM frame breakers to provide undervoltage protection by releasing the trip when the coil voltage drops. At rated voltage (120 VAC), the undervoltage release coil draws approximately 0.03 A, and the model designation U01JLM6 identifies the 120 VAC variant used on JM/LM frames. This accessory integrates with standard JM/LM frame installations to offer a reliable undervoltage trip option within Siemens Sentron’s mining‑duty accessory lineup.