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Square D KAB36150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- I-Line
Square D
KAB36150
Molded Case Circuit Breaker
Brand
Square D
SKU
KAB36150
Quantity
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Square D KAB36150 - 150A 3 Pole Molded Case Circuit Breaker
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150A 3 Pole Molded Case Circuit Breaker
150A 3 Pole Molded Case Circuit Breaker
150A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial and industrial power distribution, the Square D KAB36150 provides robust long-time and instantaneous (LI) trip functions. This 3-pole, 150A breaker is designed to integrate seamlessly into I-Line panelboards, switchboards, and motor control centers. While the legacy K-Frame series has been replaced by the modern PowerPacT J-Frame (such as the JGA36150), this unit remains essential for maintaining existing infrastructure. Rated at 25kAIC at 480VAC.Specifications
| Brand | Square D |
|---|---|
| Part Number | KAB36150 |
| Series | KAB |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 25kA @ 480Y/277VAC, 25kA @ 480VAC, 22kA @ 600Y/347VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | KA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, 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 | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip |
Product FAQs
5 answersWhat equipment is the KAB36150 designed to be installed in?
This breaker is compatible with Square D I-Line panelboards, switchboards, and motor control centers. It utilizes an I-Line style bolt-on connection to mount securely within these enclosures.
What is the modern replacement for the legacy KAB36150?
The KAB36150 belongs to the legacy Square D K-Frame family. When upgrading entire panels or specifying new equipment, the modern equivalent is the PowerPact J-Frame series, such as the JGA36150.
What type of trip unit does the KAB36150 use?
It uses a thermal-magnetic trip unit equipped with long-time and instantaneous (LI) functions. The thermal overload protection is fixed, while the magnetic short-circuit threshold is adjustable to coordinate with your specific system requirements.
Is the KAB36150 rated for direct current (DC) applications?
Yes, in addition to its standard AC ratings, this breaker is rated for 250VDC systems, providing a 10kA interrupting capacity for DC loads.
What are the wire size limits for the KAB36150 lugs?
The factory-installed lugs on the KAB36150 accept either copper or aluminum conductors ranging from 4 AWG up to 350 kcmil, making it suitable for a variety of commercial feeder applications.
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