Siemens LGB1B025B U Molded Case Circuit Breaker

Siemens LGB1B025B U Molded Case Circuit Breaker is a 25-amp, 277-volt, single-pole MCCB engineered to protect a single branch circuit in Siemens panelboards and compatible enclosures. Rated for 277 VAC and 25 A, it delivers overcurrent protection with an interrupt capacity of 65 kA at 277 V, enabling rapid disconnection during faults in distribution circuits. This unit belongs to Siemens' LGB family of molded case breakers and is designed for compact installation in panelboards where space is at a premium, providing reliable protection for 277 V circuits in commercial buildings. The 1P configuration reflects a single hot conductor protection, suitable for distribution panels in lighting or general load circuits operating at 277 V. This model's combination of high interrupt rating and compact form factor makes it a practical choice for installers seeking a standard, widely supported MCCB for Siemens-specified equipment.