QPJ3125 - 125Amp Circuit Breaker
- 125 Amp
- 10k @ 240VAC
- 3 Pole
Purchase Options:
QPJ3125 - 125Amp Circuit Breaker Description
QPJ3125 - 125Amp Circuit Breaker
Replacing a main breaker isn't just about matching the amperage. The breaker also needs to fit the equipment, connect properly, and have the electrical ratings the system was designed around. The Siemens QPJ3125 125 Amp 3-Pole Circuit Breaker is a Type QPJ plug-in breaker rated for 240V AC and 10kA interrupting capacity. Designed for compatible electrical distribution equipment, it uses a thermal-magnetic trip mechanism to help protect circuits against overloads and short circuits. If you're maintaining an existing load center that calls for a QPJ3125, matching these details is key to getting the replacement right.
Key Features and Benefits
- 125-Amp Current Rating: Designed for electrical distribution applications that require a 125-amp circuit breaker.
- Three-Pole Configuration: Provides three-pole circuit protection in equipment designed for this arrangement.
- Thermal-Magnetic Protection: Responds to overload conditions and short circuits through its thermal-magnetic trip mechanism.
- 10kA Interrupting Capacity: Rated to interrupt fault currents up to 10,000 amps at 240V AC.
- Type QPJ Plug-In Design: Intended for compatible load centers and electrical distribution equipment approved for QPJ breakers.
Technical Specifications
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Manufacturer: Siemens
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Catalog Number: QPJ3125
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Manufacturer Article Number: US2
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Product Category: Low-Voltage Circuit Breaker
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Breaker Type: QPJ
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Breaker Configuration: Plug-In
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Application: Electrical Distribution
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Amperage Rating: 125 Amps
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Number of Poles: 3
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Voltage Rating: 240V AC
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Interrupting Rating (A.I.C.): 10kA at 240V AC
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Trip Mechanism: Thermal-Magnetic
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Applicable Standard: UL 489
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UPC: 783643264953
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Country of Origin: Dominican Republic
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Net Weight: Approximately 3.263 lbs.
Material Compliance and Certifications
Electrical ratings matter, but so does using a breaker that meets the equipment requirements for where it will be installed. Siemens identifies UL 489 as the applicable standard for the QPJ3125, which covers molded-case circuit breakers and related equipment.
The manufacturer's supplied information includes:
- Applicable Standard: UL 489
- REACH Information: Refer to the manufacturer's applicable substance-compliance documentation
Where It Works Best
- Existing Siemens QPJ Installations: Electrical equipment specifically approved for Type QPJ breakers.
- Like-for-Like QPJ3125 Replacements: Applications where the original breaker has the same catalog number, ratings, and connection type.
- Compatible Load Center Main Breaker Applications: Load centers designed to accept this 125-amp, three-pole plug-in configuration.
- Electrical Distribution Systems: Installations requiring a 240V AC breaker with a 10kA interrupting rating.
- Legacy Electrical Equipment Maintenance: Maintaining older systems that specify the Siemens QPJ3125.
- Three-Pole Circuit Protection: Equipment requiring thermal-magnetic protection across three poles.
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.
Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.
Specifications
- Width:3.0
- Height:7.25
- Depth:2.56
- Poles:3
- Amperes:125
- A.I.C. Rating & Volts:10k @ 240VAC
- Type:QPJ
- Approx Dimensions:3.00"W x 7.25"L x 2.56"D
- Additional Notes:Plug-On Common-Trip Circuit Breaker - Requires Six (6) 1" Spaces - discontinued by the Manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a refund, subject to our Return Policy.
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CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).