JB3125W - 125Amp Circuit Breaker
- 125 Amp
- 14k @ 600VAC; 22k @ 480VAC; 25k @ 240VAC
- 3 Pole
Purchase Options: New Surplus
JB3125W - 125Amp Circuit Breaker Description
JB3125W - 125Amp Circuit Breaker
When you're replacing a breaker in older electrical equipment, the small details matter. A 125-amp rating alone isn't enough—the pole count, Type designation, trip unit, interrupting ratings, physical size, and terminal setup must all match the existing installation. One point to catch before installation: this version does not include terminals, so terminal requirements need to be checked separately. For compatible legacy equipment calling for these exact characteristics, the JB3125W offers the form, fit, and functional specifications needed for replacement work.
Key Features and Benefits
- 125A, 3-pole design matches equipment requiring this specific amperage and pole arrangement.
- Type JB designation helps narrow down compatibility when replacing a breaker in existing or legacy equipment.
- Thermal-magnetic operation provides the trip configuration specified for this breaker.
- Uses a non-interchangeable trip unit, an important detail to verify when matching an existing installation.
- 40°C rated for applications requiring this temperature rating.
- No terminals are included, allowing this requirement to be identified before installation.
Technical Specifications
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Part Number: JB3125W
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Type: JB
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Amperage: 125 A
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Poles: 3
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A.I.C. Rating at 600VAC: 14k
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A.I.C. Rating at 480VAC: 22k
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A.I.C. Rating at 240VAC: 25k
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Interrupting Capacity at 600VAC: 14,000 A
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Interrupting Capacity at 480VAC: 22,000 A
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Interrupting Capacity at 240VAC: 25,000 A
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Trip Type: Thermal Magnetic
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Trip Unit: Non-Interchangeable
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Temperature Rating: 40°C
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Terminals: Not Included
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Width: 4.13 in.
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Height / Length: 10.00 in.
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Depth: 4.13 in.
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Overall Dimensions: 4.13"W x 10.00"L x 4.13"D
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Approximate Ship Weight: 14.00 lb.
Material Compliance and Certifications
No specific UL, CSA, IEC, RoHS, REACH, or other material-compliance or certification information was provided in the available specifications for the JB3125W. These certifications should not be assumed based on the Type JB designation, amperage, voltage, or interrupting ratings.
Where It Works Best
The JB3125W 125A 3-pole circuit breaker is intended for compatible existing and legacy electrical equipment that specifically calls for a Type JB breaker with the same electrical ratings, dimensions, and trip arrangement. Because the JB3125W does not include terminals, terminal compatibility warrants particular attention when verifying that it is the correct replacement.
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.
Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, GTE Sylvania®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.
Specifications
- Width:4.13
- Height:10.0
- Depth:4.13
- Poles:3
- Amperes:125
- A.I.C. Rating & Volts:14k @ 600VAC; 22k @ 480VAC; 25k @ 240VAC
- Type:JB
- Approx Dimensions:4.13"W x 10.00"L x 4.13"D
- Additional Notes:40°C Rated, Thermal Magnetic Circuit Breaker With Non-Interchangeable Trip Unit. This item does NOT include any terminals - discontinued by the Manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.
If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
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).