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ABB / Thomas & Betts LS360500 Molded Case Circuit Breaker
- 500A
- 3 Pole
- Bolt-On
ABB / Thomas & Betts
LS360500
Molded Case Circuit Breaker
Brand
ABB / Thomas & Betts
SKU
LS360500
Quantity
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ABB / Thomas & Betts LS360500 - 500A 3 Pole Molded Case Circuit Breaker
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500A 3 Pole Molded Case Circuit Breaker
500A 3 Pole Molded Case Circuit Breaker
Description
Engineered for heavy-duty applications, this 500A molded case circuit breaker supplies dependable thermal-magnetic protection. It incorporates an adjustable magnetic trip for tailored coordination. Designed to mount into Eaton, Westinghouse, and Thomas & Betts L-Frame panelboards, it provides a seamless fit for existing infrastructure. This model is replaced by the LD3500 series. Interrupting 42kA at 240VAC, it safely manages high fault currents. The breaker is HACR rated and includes lugs.Specifications
| Brand | ABB / Thomas & Betts |
|---|---|
| Series | LS |
| Amperage | 500A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton L-Frame Panelboards, Westinghouse L-Frame Panelboards, Thomas & Betts L-Frame Panelboards |
| Wire Gauge | (2) 250-500 kcmil |
| Max Wire | 500 kcmil |
| Min Wire | 250 kcmil |
| 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 | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhich panelboards are compatible with the LS360500 circuit breaker?
This breaker is designed to mount into Eaton, Westinghouse, and Thomas & Betts L-Frame panelboards. It serves as a direct fit for maintaining or expanding these specific legacy distribution systems.
What wire sizes are compatible with the terminal lugs on the LS360500?
The included lugs accept two conductors per phase, accommodating wire sizes from 250 kcmil to 500 kcmil. This dual-wire capacity is necessary for 500A applications that require parallel conductors.
How does the adjustable magnetic trip function work on this breaker?
The thermal-magnetic trip unit features a fixed thermal element for long-time overload protection and an adjustable magnetic element. This allows electricians to fine-tune the instantaneous short-circuit response to coordinate with downstream devices.
Can I use the LS360500 to replace a Westinghouse L-Frame breaker?
Yes. Because Thomas & Betts, Westinghouse, and Eaton L-Frame breakers share the same physical footprint and bolt-on mounting style, the LS360500 can be installed in the same enclosures and panelboards.
What are the short-circuit interrupting capabilities of the LS360500?
This breaker can safely clear fault currents up to 42kA at 240VAC, 30kA at 480VAC, and 22kA at 600VAC. These ratings ensure the breaker can handle high-level short circuits in commercial and industrial power systems.
What does the LI trip function code indicate on this breaker?
The LI designation means the breaker provides Long-Time (L) and Instantaneous (I) overcurrent protection. The long-time function protects against sustained overloads, while the instantaneous function clears severe short circuits immediately.
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