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Square D LHL36150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Square D
LHL36150
Molded Case Circuit Breaker
Brand
Square D
SKU
LHL36150
Quantity
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Square D LHL36150 - 150A 3 Pole Molded Case Circuit Breaker
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Quantity
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Description
The LHL36150 is a 150A, 3-pole MCCB from Square D's legacy L-Frame series. It provides robust overcurrent protection for commercial and industrial electrical systems. This unit mount breaker installs into Square D enclosures and switchboards. It is replaced by the HGL36150, which requires a frame change or retrofit kit for integration. Rated 35 kAIC at 480VAC, it features a thermal-magnetic trip unit with adjustable magnetic settings (LI) and is HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | LHL36150 |
| Series | LHL |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 50kA @ 250VDC |
| Frame Type | L Frame |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D L-Frame Enclosures, Switchboards, Panelboards |
| Wire Gauge | (1) 1 AWG - 600 kcmil (Al/Cu) or (2) 1 AWG - 250 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 1 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 | Lugs (AL400LA) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
5 answersIs the Square D LHL36150 still manufactured, or has it been replaced?
The LHL36150 is a legacy L-frame circuit breaker. Square D has transitioned to the PowerPact H-frame series, such as the HGL36150, for modern 150A applications. Upgrading to a PowerPact breaker typically requires a retrofit kit or a frame change in existing enclosures.
What is the difference between the Square D LHL36150 and the LAL36150?
The primary difference is the interrupting capacity. The LHL36150 is a high-interrupting breaker rated at 35kAIC at 480VAC, whereas the standard LAL36150 is rated at 30kAIC at 480VAC. Both share the same physical dimensions and mounting requirements.
What is the adjustable magnetic trip range for the LHL36150?
The LHL36150 features an adjustable magnetic trip unit with a low setting of 750A and a high setting of 1500A. The thermal protection is fixed at 150A.
Can I install the LHL36150 in an I-Line panelboard?
No. The LHL36150 is a unit-mount, feed-thru breaker designed for standard L-frame enclosures and switchboards. It lacks the plug-on jaw connections required for I-Line panelboards.
What replacement lugs are compatible with the LHL36150?
This breaker uses AL400LA mechanical lugs. These dual-rated lugs accept either a single 1 AWG to 600 kcmil conductor or two 1 AWG to 250 kcmil conductors per phase.
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