QS2125 - 125Amp Circuit Breaker
- 125 Amp
- 10k @ 120/240VAC
- 2 Pole
Purchase Options: New In Box
QS2125 - 125Amp Circuit Breaker Description
QS2125 - 125Amp Circuit Breaker
Finding the right circuit breaker starts with knowing exactly what your electrical equipment requires. The Siemens QS2125 is a 125-amp, 2-pole thermal-magnetic circuit breaker designed for compatible electrical distribution systems operating at 120/240V AC.
Key Features and Benefits
- 125-Amp Current Rating: Provides overcurrent protection for electrical circuits and distribution equipment designed to use a 125A breaker.
- 2-Pole Configuration: Supports approved two-pole applications in 120/240V AC electrical systems.
- Thermal-Magnetic Protection: Combines thermal overload protection with magnetic short-circuit protection.
- Siemens Type QS Design: Helps identify the correct breaker for equipment specifically approved to accept the QS2125.
- HACR Designation: Suitable for applicable heating, air-conditioning, and refrigeration equipment when permitted by the equipment manufacturer.
- Copper and Aluminum Wire Compatibility: Supports #3 AWG to 300 kcmil CU/AL conductors within the manufacturer's approved termination requirements.
Technical Specifications
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Manufacturer: Siemens
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Part Number: QS2125
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Product Type: Circuit Breaker
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Breaker Type: QS
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Amperage Rating: 125 Amps
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Number of Poles: 2
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Voltage Rating: 120/240V AC
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Interrupting Rating (AIC): 10kA (10,000 Amps) at 120/240V AC
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Trip Mechanism: Thermal-Magnetic
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Frequency: 60Hz
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HACR Designation: HACR Type
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Temperature Calibration: 40°C
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Compatible Conductor Materials: Copper and Aluminum (CU/AL)
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Wire Range: #3 AWG–300 kcmil
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Height: 7.88 inches
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Width: 2.13 inches
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Depth: 3.00 inches
Material Compliance and Certifications
The Siemens QS2125 circuit breaker is identified as a 60Hz, 40°C, HACR-type thermal-magnetic breaker. Its specified conductor range supports copper and aluminum wiring from #3 AWG through 300 kcmil, subject to the manufacturer's approved terminal, conductor, and installation requirements.
Where It Works Best
- Existing Siemens QS2125 Circuit Breaker Replacements
- Compatible Siemens Type QS Electrical Equipment
- 125-Amp Main Breaker Applications
- Approved 120/240V AC Distribution Systems
- Electrical Installations Requiring 10kA Interrupting Capacity
- Compatible HACR Equipment Applications
- Commercial Electrical System Maintenance
- Electrical Panel Repairs and Equipment Servicing
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
- Depth:3.0
- Height:7.88
- Width:2.13
- Poles:2
- Amperes:125
- A.I.C. Rating & Volts:10k @ 120/240VAC
- Type:QS
- Approx Dimensions:2.13"W x 7.88"L x 3.00"D
- Additional Notes:60Hz HACR Type 40°C, Thermal Magnetic Circuit Breaker; Wire Range - #3-300kcmil CU-AL
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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