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Eaton / Westinghouse HLA3350 Molded Case Circuit Breaker
- 350A
- 3 Pole
- Unit Mount
Eaton / Westinghouse
HLA3350
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
HLA3350
Quantity
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Eaton / Westinghouse HLA3350 - 350A 3 Pole Molded Case Circuit Breaker
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Description
Built for demanding commercial and industrial environments, the Eaton HLA3350 restores functionality to aging electrical infrastructure. It is designed for use with classic Westinghouse panelboards, Eaton Pow-R-Line C panels, and switchboards without requiring extensive modifications. This 3-pole unit-mount MCCB utilizes an interchangeable thermal-magnetic trip unit for precise LI protection. Rated at 35kAIC at 480VAC, it serves as the original predecessor to the modern HLD3350 frame.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | HLA3350-R |
| Series | HLA |
| Amperage | 350A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 75kA @ 240VAC, 35kA @ 480VAC, 30kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HLA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse Panelboards, Eaton Pow-R-Line C Panelboards, Switchboards |
| Wire Gauge | (1) 1 AWG - 600 kcmil 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, 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
5 answersWhich panelboards are compatible with the HLA3350?
This L-frame breaker is designed for use in legacy Westinghouse panelboards, Eaton Pow-R-Line C panelboards, and standard switchboard applications that accept unit-mount bolt-on breakers.
What are the accepted wire sizes for the standard lugs on this breaker?
The standard lugs accept either one 1 AWG to 600 kcmil conductor or two 1 AWG to 250 kcmil conductors. The terminals are rated for both aluminum and copper wiring.
How is the trip unit configured on the HLA3350?
It features a thermal-magnetic trip unit with fixed thermal protection for overloads and an adjustable magnetic trip for instantaneous short-circuit protection.
What is the difference between the HLA3350 and the standard LA3350 breaker?
The HLA3350 is part of the Mark 75 family and features a higher interrupting capacity compared to the standard LA frame. Both share the same physical L-frame dimensions and mounting footprint.
Can this breaker be used in direct current applications?
Yes, the HLA3350 is rated for DC applications up to 250VDC. Ensure proper pole wiring configurations as required by DC safety standards and local electrical codes.
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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.