Siemens | NGB2K040B | Circuit Breaker | 40A | 2-Pole | 600V | Bolt-On

Siemens NGB2K040B delivers precise overcurrent protection in a compact, bolt-on format designed for maintenance, retrofit, and replacement projects where exact specs matter. This 40 A, 2-pole, 600 V circuit breaker helps keep electrical systems safe and compliant without sacrificing ease of service or installation speed.

• Amperage: 40 A
• Poles: 2-Pole
• Voltage Rating: 600 V
• Mounting Type: Bolt-On

Why choose this Siemens breaker? It’s built to slot into existing panels and systems that require Siemens-spec protection, ensuring reliable operation and coordination with other protective devices. The NGB2K040B designation is the most dependable reference when verifying fit and compatibility for your panel configuration.

Key use cases and benefits include:

• Maintenance and serviceability: quick replacement for aging or worn breakers to restore circuit protection with minimal downtime.
• Retrofit projects: aligns with existing Siemens equipment and mounting standards, supporting panel upgrades without reconfiguring other components.
• Replacement reliability: exact 40 A, 2-pole, 600 V specifications help maintain electrical safety, code compliance, and protection for critical circuits.
• Industrial and commercial applicability: suitable for feeders and branch circuits in manufacturing facilities, data centers, and service bays that require robust 600 V protection.

Practical installation guidance:

• Always confirm that your enclosure accepts bolt-on breakers and that the 40 A, 2-pole, 600 V ratings match the circuit requirements.
• Refer to the exact part number, NGB2K040B, during ordering to ensure optimal compatibility and performance.