Q: What is the interrupting rating?
A: 10 kA at 240 VAC
1 actual photo shown first. Reference images are model-matched and must be confirmed before purchase.
Siemens
QJ23B125
QJ23B125 Circuit Breaker, 125A, 240V, 3 Pole, 10kAIC
Siemens
From $583.99In stock
- GTIN
- 00783643193772
Product Description
The QJ23B125 is a Type QJ2 molded case circuit breaker designed for branch and feeder protection in commercial and industrial low-voltage systems. It provides 125 A thermal-magnetic protection across three poles at 240 VAC with a 10 kA interrupting rating, suitable for use in mains for load centers, lighting panelboards, metering centers, distribution boards, control panels, and MCCs. Its compact QJ frame supports standardized installation and reliable performance, with plug-in mounting noted on some listings, while other sources indicate bolt-on; verify mounting style for your application. This breaker includes long-time and instantaneous trip functions typical of thermal-magnetic designs. The unit measures approximately 7 x 5 x 3 inches and weighs around 4.4 lb. It is UL Listed and intended for wired electric installations. Use only new breakers to maintain panel warranties and compliance. One breaker is included.
Key Features
- •Type QJ2 molded case design
- •125A thermal magnetic protection
- •240 VAC three pole configuration
- •10 kA interrupting rating at 240V
- •Long time and instantaneous trip functions
- •UL Listed for compliance
- •Compact QJ frame for panel integration
Buy Options
Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.
ConditionPriceAvailabilityLead time
New
Price: $1,208.63
Availability: 4 in stock
Lead time: Ships from stock
Never Used
Price: RFQ
Availability: Sourced on request
Lead time: Quoted after RFQ
Used
Price: $583.99
Availability: 15 in stock
Lead time: Ships from stock
FNFP
Price: RFQ
Availability: 7 in stock
Lead time: Ships from stock
Specifications
- Model Number
- QJ23B125
- Type
- QJ2 molded case circuit breaker
- Amperage Rating
- 125 A
- Voltage Rating
- 240 VAC
- Poles
- 3
- Interrupting Rating
- 10 kAIC at 240V
- Trip Type
- Thermal magnetic
- Mounting
- Plug-in or bolt-on (verify)
- Material
- Alloy steel
- Color
- Black
- Dimensions
- 7 x 5 x 3 in
- Weight
- 4.38 lb
- UPC
- 783643193772
- GTIN
- 00783643193772
- Power Source
- Wired electric
- Included Components
- One QJ23B125 breaker
- Standards
- UL Listed
- Package Quantity
- 1
- Part #
- QJ23B125
- Category
- Circuit Breaker
- Subcategory
- Molded Case Circuit Breaker
- Weight
- 5.07 lbs
Before we quote this part
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
Independent sourcing disclaimer
We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.
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FAQ
Q: How many poles does this breaker have?
A: Three poles
Q: What trip mechanism is used?
A: Thermal-magnetic with long-time and instantaneous functions
Q: What mounting style does it use?
A: Sources list plug-in and bolt-on; confirm panel requirement
Q: Is this breaker UL Listed?
A: Yes