Siemens | 120V | Circuit Breaker | 40A | 1-Pole | 120V | Plug-In

Introducing the Siemens 120V 40A 1-Pole Plug-In Circuit Breaker — a precise, reliable protection solution designed for existing panels that require quick replacement with a trusted brand. Built to safeguard a single 120-volt circuit, this breaker delivers consistent overcurrent protection and straightforward installation for maintenance, retrofit, or replacement projects.

• Voltage and amperage: 120V operation with a 40A trip rating for dedicated circuit protection.
• 1-Pole design: Protects a single live conductor, ideal for individual circuits such as motors, heating elements, or other 120V loads.
• Plug-In installation: Designed for seamless plug-in replacement in compatible Siemens panels, enabling faster service and minimal downtime.
• Exact-fit compatibility: Part number is the most reliable reference for matching your panel requirements—be sure to verify fit and ratings before ordering.
• Versatile use cases: Well-suited for maintenance, retrofit, and replacement scenarios in residential or light commercial settings where Siemens plug-in breakers are standard.

This Siemens 120V 40A 1-Pole Plug-In Circuit Breaker is ideal for electricians and homeowners updating panel protection. If your project calls for a precise Siemens plug-in solution that fits a 120V, 1-pole, 40A specification, this breaker delivers the clarity, reliability, and quick-install performance you need. Verify the exact part number against your panel’s compatibility notes to ensure a flawless fit, and restore circuit protection with confidence.