The Square D QO 25 Amp Plug-In 2-Pole Circuit Breaker is a reliable, ready-to-install protection device designed for indoor residential panels. Built for the QO family, this 2-pole breaker interrupts both hot legs to safeguard circuits at 120/240 volts, delivering consistent performance when you need fast, clean shutdowns during faults.
Why this 25A Plug-In 2-Pole Breaker stands out
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Plug-In mounting enables quick, tool-free installation in compatible QO load centers, simplifying upgrades, repairs, or replacements.
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Two-pole design switches both hot conductors simultaneously, improving safety and arc protection for multi-wire branch circuits.
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QO series compatibility ensures seamless integration with existing Square D panels built for QO breakers, maintaining system reliability.
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Listed for safety UL Listed and CSA Listed, providing assurance that the device meets established electrical standards.
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Compact, sturdy dimensions with a width of 1.48 in, height of 3.5 in, and depth of 2.92 in, designed to fit typical indoor panel spaces without crowding adjacent breakers.
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Packaging sleeve protects the breaker during transport and storage, ensuring it arrives ready for installation.
Key specifications at a glance
- Amps: 25 A
- Poles: 2-Pole
- Volts: 120/240
- Mounting Type: Plug-In
- Series: QO
- Brand: Square D
- UL Listed: Yes
- CSA Listed: Yes
- Dimensions: Width 1.48 in, Height 3.5 in, Depth 2.92 in
- Indoor use: Yes
- Packaging Type: Sleeve
Ideal use cases
- Protecting 25-amp branch circuits in standard residential electrical panels.
- Upgrading or replacing aging or malfunctioning two-pole breakers in QO load centers.
- Occasions where a quick, secure plug-in installation is preferred to minimize downtime.
- Indoor applications where reliable performance and safety compliance are priorities.
Installation and practical tips
- Power down the main breaker and verify there is no voltage present before handling the panel interior.
- Open the panel cover and locate an available slot in the QO bus where the breaker will seat securely.
- Align the breaker with the bus stabs, then press firmly until it snaps into place and sits flush against the panel.
- Close the panel, restore power, and test the circuit to confirm proper operation.
- Always follow local electrical codes and consult a licensed electrician if you’re unsure about compatibility or installation.
What to expect in your electrical system
Choosing the 25A Plug-In 2-Pole Breaker from Square D’s QO line brings a dependable balance of safety, ease of use, and compatibility. It’s specifically engineered to protect residential circuits that require reliable two-pole interruption, while remaining straightforward to install in indoor environments. With UL and CSA listings, you gain peace of mind that your electrical protection meets rigorous standards without sacrificing performance or ease of maintenance.
