Siemens NGB3K020B Circuit Breaker, 20A, 3-Pole, 600V

Siemens NGB3K020B is a high-reliability 20 A, 3-pole circuit breaker designed for the rigors of industrial electrical service, maintenance, and replacement projects. Rated for up to 600 V, this unit delivers dependable overcurrent protection for your three‑phase power distribution, helping keep equipment up and running while safeguarding wiring and components. Use the part number NGB3K020B to confirm compatibility with your panel or installation requirements.

• Amperage: 20 A
• Poles: 3
• Voltage: 600 V
• Part number: NGB3K020B
• Design intent: industrial service, maintenance, and replacement applications
• Compatibility note: verify fit by part number and application requirements before ordering

The 3‑pole design makes this breaker ideal for three‑phase systems common in manufacturing floors, packaging lines, and heavy equipment suites. It provides robust protection for high‑demand loads while fitting into Siemens panels and equipment that accept the NGB series, helping you maintain a cohesive, serviceable electrical system.

Use cases and benefits

• Replacing aging or damaged breakers in industrial control panels to restore reliable circuit protection
• Upgrading distribution boards to support standard 3‑phase equipment in factories and warehouses
• New installations where a 3‑pole, 600 V class breaker is required for safe, compliant power distribution

To ensure a perfect fit, always verify the specific application requirements and panel compatibility using the NGB3K020B part number. If you’re unsure, we’re available to help you confirm compatibility and guide you to the right Siemens solution for your environment.

Ready to secure your system’s protection? Message us to verify part-number compatibility and get expert assistance with matching this breaker to your Siemens panels and 3‑phase distribution needs.