Siemens | CM3B500 | Circuit Breaker | 3-Pole

Siemens CM3B500 3-Pole Circuit Breaker is designed for reliable protection in 3-phase electrical systems. This genuine Siemens component fits maintenance, retrofit, and replacement scenarios where exact specifications matter, ensuring seamless integration with compatible panels and switchgear.

• Exact compatibility: The CM3B500 part number is your best reference for matching with Siemens panels. Confirm fit and ratings before ordering to avoid mismatches.
• Three-pole design for 3-phase protection: Each pole protects a phase, providing coordinated interruption across all three lines in your 3-phase circuitry for safer, more reliable operation.
• Maintenance-friendly replacement: When a breaker trips or requires replacement, this 3-Pole unit enables a straightforward swap-in, reducing downtime and simplifying service work.
• Retrofit-ready: Ideal for panel upgrades or retrofits where new hardware must align with existing Siemens infrastructure and mounting configurations.
• Durable Siemens build: Engineered for dependable long-term performance in demanding environments, helping maintain consistent electrical safety and system integrity.

This CM3B500 is well-suited for facilities with 3-phase service needs in commercial, industrial, and manufacturing settings. Use cases include routine panel maintenance, upgrades to support expanded capabilities, and replacements that require precise spec matching. Rely on the CM3B500 part number as the primary compatibility reference, and verify the intended ratings with your current equipment before proceeding with purchase to ensure a perfect fit.