Square D KAL26150-1021 KAL261501021 - 150A 2 Pole Molded Case Circuit Breaker
- 150A
- 2 Pole
- Unit Mount
Quantity
Square D KAL261501021 - 150A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Featuring an integrated 120-240VAC shunt trip, the Square D KAL26150-1021 enables remote disconnection for enhanced facility safety. This 2-pole, 150A molded case circuit breaker utilizes thermal-magnetic technology to provide reliable long-time and instantaneous protection. The unit mount configuration is engineered for Square D QED switchboards and standard enclosures.Specifications
| Brand | Square D |
|---|---|
| Series | KAL |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 42kA @ 240VAC, 25kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | K |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D QED Switchboards, Motor Control Centers, Enclosures |
| 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 | Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (120-240VAC), Lugs (AL250KA) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, UL 489 |
| Approval | CE, CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
8 answersWhat does the -1021 suffix mean on the KAL26150-1021 part number?
The -1021 suffix indicates that this circuit breaker comes equipped with a factory-installed 120/240VAC shunt trip mechanism. This allows the breaker to be tripped remotely by applying voltage to the shunt trip coil.
Which Square D electrical distribution equipment accepts the KAL26150-1021?
This legacy K-frame breaker is compatible with Square D QED switchboards, motor control centers, and standalone enclosures designed for unit-mount feed-thru breakers.
What are the wiring requirements for the KAL26150-1021 lugs?
The standard factory lugs accommodate 4 AWG to 350 kcmil conductors. They are dual-rated for either copper or aluminum wire, providing flexibility for field installations.
Is the KAL26150-1021 suitable for direct current systems?
Yes, in addition to its AC ratings, this breaker is rated for 250VDC applications with a 10kA interrupting capacity, making it suitable for certain industrial DC control and power circuits.
Does the KAL26150-1021 plug onto a panelboard bus?
No, this is a unit-mount, feed-thru circuit breaker. It must be bolted directly to a backpan or mounting plate and wired via lugs on both the line and load sides, rather than plugging into a busbar.
How do you adjust the trip settings on the KAL26150-1021?
The thermal overload protection is fixed at 150 amps, but the magnetic instantaneous trip is adjustable. This allows electricians to fine-tune the short-circuit response based on the specific load or coordination study.
Can the KAL26150-1021 replace other Square D K-frame breakers?
Yes, as part of the legacy K-frame family, it shares the same physical dimensions and mounting footprint as other 2-pole K-frame breakers. This makes it a direct replacement for older or failed units with matching specifications.
How does the thermal-magnetic trip mechanism in the KAL26150-1021 operate during a fault?
The thermal element provides delayed tripping for sustained overloads, while the magnetic element provides instantaneous tripping for severe short circuits. This ensures comprehensive protection for the downstream circuit.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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,