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Eaton / Westinghouse HLA3500 Molded Case Circuit Breaker
- 500A
- 3 Pole
- Unit Mount
Eaton / Westinghouse
HLA3500
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
HLA3500
Quantity
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Eaton / Westinghouse HLA3500 - 500A 3 Pole Molded Case Circuit Breaker
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Description
Maintaining power continuity in older facilities requires exact-match components like the 500A HLA3500. This three-pole thermal-magnetic breaker offers robust protection for industrial environments utilizing 600VAC infrastructure. Engineered as a unit mount device, it installs into classic Westinghouse switchboards and Pow-R-Line C panelboards. It serves as a vital maintenance part for legacy systems, replaced in newer catalogs by the HLD3500 model. The 75kAIC rating ensures premium performance.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | HLA3500-R |
| Series | HLA |
| Amperage | 500A |
| 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 | (2) 1 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 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
6 answersAre Eaton and Westinghouse HLA3500 breakers interchangeable?
Yes. Eaton acquired the Westinghouse electrical distribution division in the 1990s. An Eaton or Cutler-Hammer HLA3500 is the exact same physical and electrical device as the original Westinghouse model and serves as a direct drop-in replacement.
What does the Mark 75 family designation indicate on this breaker?
The Mark 75 label denotes a specific high interrupting capacity line of legacy Westinghouse circuit breakers. For the HLA3500, this refers directly to its maximum 75kA interrupting rating when applied at 240VAC.
Which panelboards are compatible with the LA frame HLA3500?
This unit-mount, bolt-on breaker is designed for installation in legacy Westinghouse panelboards, Eaton Pow-R-Line C panelboards, and compatible industrial switchboards.
How do you adjust the trip settings on the HLA3500?
This breaker features a fixed thermal element for overload protection and an adjustable magnetic trip for short-circuit protection. The magnetic response can be tuned using the adjustment dials on the face of the breaker to coordinate with specific downstream load requirements.
What are the lug requirements for terminating conductors on this 500A breaker?
The standard lugs on this breaker are designed to accept two 1 AWG to 500 kcmil aluminum or copper wires per phase. Ensure all connections are torqued to the specifications printed on the breaker label to prevent overheating and ensure safe operation.
Can the HLA3500 be utilized in direct current systems?
Yes, it is rated for use in DC applications up to 250VDC, where it provides a 20kA interrupting capacity. This makes it suitable for specific industrial DC control panels and battery systems.
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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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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.