This Square D QO 70A 2-Pole Plug-In Circuit Breaker is built for rugged, dependable protection inside indoor electrical panels. Designed for plug-in mounting in QO load centers, it provides reliable two-pole trip protection for all circuits up to 70 amps, keeping your home or commercial space safe from overloads and short circuits on both hot legs. Key features at a glance
- Amperage: 70 A
- Poles: 2-Pole
- Voltage: 120/240 V
- Mounting: Plug-In for quick, tool-free installation
- Series: QO, from Square D
- Indoor use only
- Dimensions: 1.48" W x 3.5" H x 2.92" D
- UL Listed: No; CSA Listed: No
- Brand: Square D Why this matters
- Quick, reliable protection: The plug-in design means fast replacement or upgrades in standard QO panels, reducing downtime and simplifying service calls.
- Dual-pole safety: With two live conductors monitored together, both hot legs trip simultaneously, preventing hazardous voltages from remaining live on a circuit.
- Suitable for heavy-load circuits: At 70 amps, this breaker is ideal for feeders to subpanels or large appliance circuits where robust protection is essential. Ideal use scenarios
- Upgrading or expanding a residential service where a 70A feeder or large appliance circuit requires solid protection.
- Subpanel feed protection in main service panels, ensuring balanced, simultaneous shutoff on both hot legs.
- Indoor panel installations where space and compatibility with QO bus systems matter most. Installation and compatibility tips
- Confirm your panel is a compatible QO load center designed for plug-in breakers, then snap this unit into an available slot.
- Verify that the circuit requires a 70-amp, 2-pole device and that the 120/240 V rating matches your circuit needs.
- Follow standard electrical safety practices: de-energize the panel, use proper PPE, and ensure correct alignment with the bus bars during installation. Practical notes for responsible ownership
- This unit is specified as indoor use and is not UL or CSA listed, so verify project requirements and local electrical codes before deployment.
- Keep a spare plug-in breaker on hand for quick replacements in service panels, minimizing downtime during maintenance or upgrades. With its dependable QO design, straightforward plug-in installation, and clear 120/240-volt compatibility, the Square D QO 70A 2-Pole Plug-In Circuit Breaker delivers focused protection where it’s needed most—reliably and with a straightforward upgrade path for panels that support QO devices.
