Siemens NDK3B150 Circuit Breaker, 150A, 3-Pole

Siemens NDK3B150 Circuit Breaker, 150 A, 3-Pole is built for demanding industrial power systems, delivering reliable protection for three-phase circuits in service, maintenance, and replacement projects. Associated with the VL series, this breaker is designed to slot into compatible Siemens panels where robust, continuous protection is essential.

• Amperage: 150 A
• Poles: 3
• Series: VL
• Part Number: NDK3B150
• Product Type: Circuit Breaker

Why this matters in real-world setups: the 3-pole configuration provides balanced interruption across all three phases, a critical requirement for protecting motors, conveyors, presses, and other heavy loads in industrial environments. With a 150 A rating, it supports substantial feeder and branch-circuit protection while helping maintain overall system stability and safety.

This breaker is purpose-built for industrial electrical service, maintenance, and replacement projects, offering a straightforward fit for VL-series panels. Its part-number-driven compatibility means fewer surprises during replacement—you can confirm fit using the exact NDK3B150 model and your panel’s documented requirements.

Ideal use scenarios include: - Replacing a worn or tripped 3-pole breaker in a VL-series distribution panel - Protecting three-phase motor circuits and machine control feeders in manufacturing lines - Implementing reliable protection in service panels or equipment racks where three-phase power is distributed - Performing standard maintenance where matching Siemens VL-series components is preferred for consistency and supportability

Compatibility and installation guidance: - Verify fit strictly by part number (NDK3B150) and confirm it matches your VL-series panel and application needs. - Use only in circuits and environments within the breaker's rated specifications, and follow applicable electrical codes and Siemens installation guidelines. - If you’re unsure about compatibility with your specific panel or application requirements, reach out for confirmation using the part number as the reference point.

If you need help matching a part number or confirming compatibility, send us a message and our team will assist you in validating fit for your VL-series system and industrial load profile.