QDA221251 - 125 Amp Circuit Breaker
- 125 Amp
- 25k @ 240VAC
- 2 Pole
Purchase Options: New In Box
QDA221251 - 125 Amp Circuit Breaker Description
QDA221251 - 125 Amp Circuit Breaker
If you're looking for a reliable 125 amp circuit breaker that installs cleanly and performs without surprises, the QDA221251 PowerPacT Q is built for exactly that. Designed for 240VAC electrical distribution systems, this 2-pole breaker delivers consistent protection against overloads and short circuits—without the guesswork. What makes this unit stand out is its balance of performance and practicality. With a 25kA interrupting rating, it's ready to handle serious fault conditions, while the thermal-magnetic trip mechanism ensures fast, accurate response when your system needs it most. Add the I-Line connection on the line side, and you've got a breaker that electricians appreciate for its quick installation and seamless integration with compatible panelboards. Whether you're maintaining an existing system or upgrading a panel, this breaker gives you something every professional wants: confidence that the job is done right the first time.
Key Features and Benefits
- 125 Amp Power Capacity – Ideal for commercial and industrial electrical distribution
- Thermal-Magnetic Protection – Responds quickly to overloads and short circuits
- 25kA Interrupt Rating – Handles high fault currents with confidence
- 2-Pole Design (AB Phase) – Efficient protection for dual-phase systems
- I-Line Mounting – Faster, cleaner installation in compatible panels
- Push-to-Trip Button – Easy manual testing for maintenance and safety checks
- HACR Rated – Suitable for HVAC and refrigeration systems
- Built for Longevity – Designed to perform through thousands of operating cycles
Technical Specifications
- Catalog Number: QDA221251
- Product Line: PowerPacT Q
- Amperage: 125A
- Poles: 2
- Voltage Rating: 240VAC, 50/60 Hz
- Interrupting Capacity: 25kA @ 120/208VAC & 240VAC
- Trip Unit: Thermal-Magnetic
- Magnetic Trip Level: 2400A
- Magnetic Hold: 1200A
- Continuous Rating: 80%
- Mounting Type: I-Line (line), lug (load)
- Wire Range: AWG 4 – 300 kcmil
- Dimensions: 6.47" H x 3" W x 3.93" D
Material Compliance and Certifications
When it comes to electrical protection, compliance isn't optional—it's essential. This breaker meets strict industry standards, giving you peace of mind on every install:
- UL Listed
- CSA Certified
- NOM Compliant
- IEC Certified
Where It Works Best
- The QDA221251 is right at home in commercial buildings, industrial facilities, and HVAC systems where dependable circuit protection is non-negotiable. It's especially useful for:
- Panelboard upgrades and retrofits
- Office and retail electrical systems
- Manufacturing and light industrial setups
- Heating, air conditioning, and refrigeration circuits
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Square D® is a registered trademark of Schneider Electric. Products sold are surplus, used, or refurbished and are NOT supplied by Schneider Electric or its affiliates.
Specifications
- Depth:4.31
- Height:7.88
- Width:3.0
- Poles:2
- Amperes:125
- A.I.C. Rating & Volts:25k @ 240VAC
- Type:QDA
- Approx Dimensions:3.00"W x 7.88"L x 4.31"D
- Additional Notes:PowerPact Q-Frame, I-Line, Plug-On, 2-Pole, A-B Phase, Thermal Magnetic, Molded Case Circuit Breaker
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You may return unused items within 30 days of delivery for a full refund.
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