Siemens LGB2K035B 35A 2-Pole 480 V Circuit Breaker Potential Transformer

The Siemens LGB2K035B is a purpose-built circuit breaker designed for reliable protection in 480 V electrical systems. With a 35 A current rating across 2 poles, this device ensures safe, simultaneous disconnection of both live conductors, providing robust overcurrent protection for dual-hot feeders in industrial and commercial installations.

Part Number LGB2K035B identifies a precise, Siemens‑engineered component that you can trust to integrate smoothly with Siemens panels and protection schemes. Built for demanding environments, it delivers consistent performance across the distribution network—protecting motors, transformers, and other critical loads that operate at 480 V.

• Key specifications: 2-Pole configuration, 35 A rating, 480 V operating voltage, Part Number LGB2K035B.
• Enhanced safety: Simultaneous disconnection of both hot legs reduces arc risk and improves fault clearance in 3-phase or split-phase 480 V systems.
• Reliable protection for demanding setups: Engineered for industrial and commercial use, delivering dependable overcurrent protection in everyday operations and surge conditions.
• Compatibility and replacement ease: Designed to align with Siemens protection architectures, making retrofits and panel replacements straightforward to maintain uptime.
• Measurement-friendly integration: When paired with monitoring or metering arrangements that use potential transformers, this breaker fits into protection and measurement schemes that require dependable coordination and accurate sensing.

Who should consider the LGB2K035B? Electricians, facility managers, and engineers who manage 480 V distribution networks and need solid, field-proven protection for dual-hot circuits. It’s especially suitable for feeder protection in manufacturing lines, HVAC equipment, and data-center infrastructure where reliable, predictable tripping behavior is essential.

Practical tips for use: verify panel compatibility with Siemens LGB2K series breakers, ensure proper torque and mounting per equipment guidelines, and coordinate protection settings with downstream devices to achieve optimal selectivity. For projects incorporating potential transformers for monitoring, plan wiring and sensing layouts to take full advantage of coordinated protection without sacrificing accessibility or serviceability.

In short, the Siemens LGB2K035B 35 A 2-Pole 480 V circuit breaker combines Siemens’ engineering precision with a focused 480 V protection solution, helping your electrical system stay protected, reliable, and ready for the demands of modern industrial and commercial environments.