Square D QO120EPD2100 20A 1-Pole 120 V Circuit Breaker

Meet the Square D QO120EPD2100, a trusted 20-amp, 1-pole circuit breaker designed to guard 120-volt branch circuits with dependable protection. This exact part—QO120EPD2100—delivers clear performance for residential electrical systems that demand precise, reliable overcurrent protection.

• Part Number: QO120EPD2100
• Current rating: 20 A
• Poles: 1
• Voltage rating: 120 V

What this means for you: a single-pole, 120-volt breaker that acts as a guardrail for everyday circuits—lighting, receptacles, and other 120 V loads—by interrupting current when it detects an overload or fault. Designed for consistent performance in typical home panels, it helps prevent wiring damage, electrical fires, and nuisance outages caused by overloads on everyday living spaces.

Why choose the QO120EPD2100 for your electrical setup:

• Exact replacement part for maintenance or panel updates, ensuring you’re using the same trusted Square D component in your system.
• Clear electrical protection aligned with common 120 V circuits, making it a straightforward choice for standard home wiring scenarios.
• Durable construction and proven reliability from a legacy brand that homeowners rely on for long-term safety and performance.

Use cases and scenarios:

• Replacing a failed 20 A, single-pole breaker in a living area circuit powering lights and outlets.
• Upgrading an older panel to ensure a consistent 20 A, 120 V protection for a dedicated branch circuit without altering wiring layouts.

Note: This description centers on the exact model QO120EPD2100 to help you identify the precise component you need for your 120 V, 20 A, 1-pole circuit protection. If you’re performing panel maintenance or repairs, confirm this is the correct replacement for your configuration.