Siemens NEB3B050 50A 3P 600V Circuit Breaker, Bolt-On | AmpState

The Siemens NEB3B050 is a bolt-on, 50 A, 3-pole 600V circuit breaker designed for reliable circuit protection in panelboards, load centers, and electrical distribution systems. This part is a smart pick for maintenance teams, panel builders, and spare inventories where a direct part-number match matters. Siemens NEB3B050 delivers precise compatibility and dependable performance in demanding environments.

Key specifications at a glance

• Amperage: 50 A
• Poles: 3
• Voltage rating: 600 V
• Mounting: Bolt-On
• Manufacturer: Siemens
• Part number: NEB3B050

Ideal applications and use cases

Use the NEB3B050 to protect three-phase circuits in commercial or industrial panelboards and distribution boards. It’s especially valuable when stocking spare parts for field service, construction of new panels, or refurbishing electrical distribution where exact part-number compatibility saves time and reduces install risk.

What makes this breaker unique

• Direct part-number match: Simplifies procurement, reduces mis-orders, and accelerates maintenance cycles by ensuring the exact Siemens NEB3B050 fits your panel and bus configuration.
• Bolt-On installation: A secure, vibration-resistant mounting method that speeds up replacement and minimizes torque concerns during installation.
• Three-pole protection: Designed for three-phase systems, delivering balanced protection across all phases and helping protect equipment connected to 600V circuits.
• Trusted Siemens build: Engineered for durability in demanding electrical environments, with a proven track record in distribution protection.

Compatibility and support

Available from AmpState, the Siemens NEB3B050 is positioned to meet your panel-building and maintenance needs. If you’re unsure about fit, we’re here to help— send a message to confirm compatibility and get precise guidance on part matching.

How to procure

When your project or inventory requires a 50 A, 3-pole, 600 V bolt-on circuit breaker, Siemens NEB3B050 is a precise, reliable choice. Add this direct-part solution to your order from AmpState and streamline your electrical distribution strategy with confidence.