Siemens B220AFCH Circuit Breaker, 20A, 2-Pole, 120V

The Siemens B220AFCH 20 A, 2-Pole, 120V circuit breaker is built for demanding industrial environments—delivering reliable protection for electrical service, maintenance, and replacement projects. Designed to interrupt power quickly when faults occur, it safeguards both lines of a typical 120V circuit, making it a dependable choice for panel protection and ongoing system reliability.

Key specifications at a glance

• Amperage: 20 A
• Poles: 2
• Voltage: 120V
• Manufacturer: Siemens
• Part Number: B220AFCH
• Product Type: Circuit Breaker

What makes this breaker a smart choice

With its 2-pole configuration, the B220AFCH protects two hot legs simultaneously, simplifying wiring for multi-wire circuits and ensuring coordinated protection across the circuit. The part is purpose-built for industrial service scenarios, where dependable performance and straightforward replacement are essential for minimizing downtime.

Ideal use cases

• Industrial electrical service projects requiring fast, reliable overcurrent protection.
• Maintenance tasks that demand a direct part-number match for seamless compatibility.
• Replacement installations that restore original protection levels without modifying panel configurations.

Compatibility and installation considerations

To ensure a perfect fit, verify compatibility using the exact part number B220AFCH and assess your application requirements. If you’re unsure about fit or compatibility, message us and we’ll help confirm the right part for your system.

Practical tips for downtime minimization

• Keep a spare B220AFCH on hand for scheduled maintenance or unexpected outages.
• When replacing, ensure the panel and circuit are rated for 20 A, 2-pole operation at 120V to maintain proper protection levels.
• Consult your panel’s documentation to confirm mounting, trip characteristics, and compatibility with existing components.