Eaton / Westinghouse PB32000 Molded Case Circuit Breaker
- 2000A
- 3 Pole
- Bolt-On
Quantity
Eaton / Westinghouse PB32000 - 2000A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered to restore power in aging industrial systems, the Eaton PB32000 is a 2000A, 3-pole molded case circuit breaker. It provides reliable distribution in legacy facilities without requiring extensive modifications. This bolt-on breaker installs into Westinghouse PB switchboards and motor control centers. For future upgrades, it is replaced by the CRD320T76W using a retrofit kit. Rated for 100kAIC at 480VAC, it features a thermal-magnetic trip unit for reliable LI protection.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | PB32000 |
| Series | PB |
| Amperage | 2000A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 125kA @ 240VAC, 100kA @ 480VAC, 100kA @ 600VAC, 100kA @ 250VDC |
| Frame Type | PB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse PB Switchboards, Motor Control Centers |
| 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 Not Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit |
Product FAQs
6 answersWhat equipment is the PB32000 designed to fit?
This 2000A breaker is specifically designed for installation in legacy Westinghouse PB switchboards and compatible motor control centers.
Can the thermal trip setting on the PB32000 be adjusted?
No, this breaker features a fixed thermal trip for long-time overload protection set at 2000 amps. However, it does include an adjustable magnetic trip function for customizing the instantaneous short-circuit pickup level.
Why is this breaker listed under both Eaton and Westinghouse?
Westinghouse distribution equipment was acquired by Eaton Cutler-Hammer. The PB32000 is the exact same PB frame breaker used in legacy Westinghouse systems and is fully interchangeable with Eaton Cutler-Hammer versions bearing the same catalog number.
Is the PB32000 suitable for direct current (DC) systems?
Yes, it is rated for use in DC applications up to 250VDC, providing a high interrupting capacity of 100kA at that voltage.
What should I know about the terminal connections before installing?
The PB32000 utilizes a bolt-on connection type. You must ensure you have the correct lug kits sized for 2000A conductors, as lug requirements will vary based on your specific wire gauge, parallel run configuration, and conductor material.
What are the handling requirements for installing this 2000A breaker?
Due to the heavy physical weight of legacy PB frame insulated case breakers, mechanical lifting equipment or a breaker hoist is strongly recommended to safely position the unit into the switchboard chassis before bolting it down.
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