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Eaton / Westinghouse HLA3150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Eaton / Westinghouse
HLA3150
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
HLA3150
Quantity
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Eaton / Westinghouse HLA3150 - 150A 3 Pole Molded Case Circuit Breaker
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Description
Built for demanding industrial environments, this 3-pole, 150A MCCB protects 600VAC systems. The legacy Mark 75 L-frame device defends against severe overloads and faults. Maintaining the original footprint, it mounts into older Westinghouse panelboards and Eaton Pow-R-Line C enclosures. It is the recommended substitute for the HLD3150. Utilizing an interchangeable thermal-magnetic trip unit, it offers adjustable magnetic responses and a 35kAIC rating at 480V.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | HLA3150-R |
| Series | HLA |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 75kA @ 240VAC, 35kA @ 480VAC, 30kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | LA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse Panelboards, Eaton Pow-R-Line C Panelboards, Switchboards |
| Wire Gauge | 6 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 6 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, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Interchangeable Trip Unit |
Product FAQs
6 answersWhich panelboards are compatible with the HLA3150 circuit breaker?
This unit mounts in legacy Westinghouse panelboards, Eaton Pow-R-Line C panelboards, and compatible switchboards designed to accept bolt-on L-frame breakers.
How does the HLA series differ from standard LA frame breakers?
The HLA series is part of the Mark 75 family, offering a higher interrupting capacity than standard LA breakers. It provides up to 75kAIC at 240VAC and 35kAIC at 480VAC while maintaining the exact same physical footprint.
Can I use the HLA3150 to replace an older Westinghouse LA3150?
Yes, the HLA3150 shares the same physical dimensions and mounting configuration as the standard LA3150. It serves as a direct drop-in replacement while providing an upgraded interrupting rating.
Are the trip settings on the HLA3150 adjustable?
The thermal element for overload protection is fixed at 150 amps. However, the magnetic trip unit for short-circuit protection is adjustable, allowing electricians to coordinate the instantaneous trip response with downstream devices.
What wire sizes are accepted by the standard lugs on this breaker?
The factory-installed lugs accept aluminum or copper conductors ranging from 6 AWG to 350 kcmil. Always apply the manufacturer recommended torque specifications during installation to prevent terminal overheating.
Can the HLA3150 be utilized in direct current systems?
Yes, this breaker is rated for DC applications up to 250VDC, providing an interrupting capacity of 20kAIC for direct current circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 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
1 review
- SGScott G.ReviewingSquare D HLA36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/1/21Product was shipped quickly and
Product was shipped quickly and fit perfectly.