Square D KAL36250WB Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Square D
KAL36250WB
Molded Case Circuit Breaker
Brand
Square D
SKU
KAL36250WB
Quantity
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Square D KAL36250WB - 250A 3 Pole Molded Case Circuit Breaker
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Quantity
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Description
Built for industrial power management, this 3-pole, 250A molded case circuit breaker belongs to the legacy K-Frame series. The unit mount breaker installs into Square D enclosures and switchboards. The PowerPacT J-Frame (JGL36250) serves as the modern substitute, requiring a separate interlock kit. Rated 42kAIC at 240VAC, it features an adjustable magnetic trip. The "WB" suffix indicates a walking beam interlock provision, allowing mechanical interlocking to prevent simultaneous operation.Specifications
| Brand | Square D |
|---|---|
| Part Number | KAL36250WB |
| Series | KAL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 25kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | KAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG-350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Walking Beam Interlock Provision |
Product FAQs
4 answersWhat does the "WB" suffix indicate on the KAL36250WB?
The "WB" suffix signifies a factory-installed walking beam mechanical interlock. This mechanism is used in transfer and safety applications to interlock two breakers, ensuring only one can be closed at a time.
What is the modern replacement for the legacy KAL36250WB?
The KAL series is a legacy K-Frame breaker. The modern equivalent is the Square D PowerPact J-Frame series, such as the JDL36250 or JGL36250. To replicate the "WB" functionality, a separate walking beam interlock accessory must be configured for the new PowerPact breakers.
How is the walking beam interlock installed?
The walking beam interlock requires this breaker to be mounted adjacent to another compatible "WB" suffix breaker using a specific mounting pan. The mechanical linkage physically prevents both breakers from being in the ON position simultaneously.
Can the KAL36250WB be installed in an I-Line panelboard?
No, the KAL36250WB is a unit-mount, feed-thru breaker designed for standalone enclosures, switchboards, and motor control centers. For an I-Line panelboard, you would need an I-Line plug-on breaker.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
3 reviews
- GGGavin G.ReviewingSquare D KAL36110 - 110A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/9/23Great service
Needed this breaker asap and they helped me get it quickly and they were very helpful.
- JJamesReviewingSquare D KAL36250 - 250A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/25/18Lightning Fast Turn Around
Thanks to SuperBreakers we were able to get the part we needed, and get back online.
- GRGreg R.ReviewingSquare D KAL26200 - 200A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/29/18Excellent Service
The breaker we ordered was needed to get one of or machines back up and running. We ordered it next day air and it arrived right on time.
Thank you,