Siemens B115DFH 15A 1-Pole 120 V Circuit Breaker

When it comes to protecting your home’s electrical system, reliability isn’t optional—it’s essential. The Siemens B115DFH 15A 1-Pole 120 V Circuit Breaker delivers precise, dependable protection for 120-volt branch circuits in compatible Siemens panels, keeping wiring, outlets, and lights safe from overloads and short circuits.

What this is

The B115DFH is a single-pole circuit breaker engineered for residential electrical setups. It carries a 15 amp rating and supports 120 V operation, forming a critical line of defense for everyday circuits such as lighting and outlets.

Key specifications

• Current rating: 15 A
• Poles: 1
• Voltage rating: 120 V
• Product/part number: B115DFH

Why choose the Siemens B115DFH

Designed to integrate seamlessly with Siemens panels that accept the B115DFH family, this breaker offers a precise fit, consistent performance, and trusted protection. Using a genuine Siemens component helps ensure proper alignment, reliable trip behavior, and compatibility with your existing panel hardware, so you can maintain a cohesive and safer electrical system.

Ideal use cases

• Replacing a failed or tripped breaker on a 120-volt branch circuit serving lighting or outlets
• Upgrading an older or non-Siemens breaker to a genuine Siemens B115DFH for consistent operation
• Having a ready replacement on hand for routine panel maintenance and service

Practical installation tips

Before swapping breakers, shut off the main power and verify the circuit is de-energized. Ensure you’re using the exact B115DFH type compatible with your Siemens panel, align with the panel bus, and follow your panel’s installation instructions. If in doubt, consult a licensed electrician to guarantee safe, proper installation.

What problems it solves

This breaker interrupts current at the first sign of an overload or short circuit, protecting wiring insulation and connected devices. By providing dependable, device-specific protection, it helps reduce the risk of electrical fires and minimizes nuisance trips caused by incompatible or aging components.