Eaton / Cutler-Hammer PB32500F Insulated Case Circuit Breaker
- 2500A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer PB32500F - 2500A 3 Pole Insulated Case Circuit Breaker
Re-Certified
Quantity
Description
Supplying robust protection for industrial systems, the Eaton PB32500F is a 2500A insulated case circuit breaker frame. It features long-time and instantaneous (LI) thermal-magnetic trip functions. Designed for heavy-duty applications, this bolt-on frame mounts into PB series switchboards and motor control centers. It replaces aging infrastructure, though facilities can also upgrade to the Power Defense PD6.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | PB |
| Amperage | 2500A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 125kA @ 240VAC, 100kA @ 480VAC, 100kA @ 600VAC, 100kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | PB Series Enclosures, PB Panelboards, Switchboards, Motor Control Centers |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs Not Included, Mounting Hardware |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Frame Only, Interchangeable Trip Unit, 100% Rated |
Product FAQs
6 answersWhat enclosures and equipment are compatible with the PB32500F?
This insulated case circuit breaker is designed specifically for legacy Westinghouse, Cutler-Hammer, and Eaton PB Series enclosures, PB panelboards, switchboards, and motor control centers.
What are the modern replacements for the obsolete PB32500F?
While the PB32500F is no longer manufactured, facilities upgrading their infrastructure can replace it with Eaton Series C RD-Frame or Power Defense PD6 circuit breakers. Note that retrofitting to a newer frame series may require panel modifications.
How is the PB32500F mounted within an electrical system?
The PB32500F utilizes a rear-connected, bolt-on mounting configuration. It is designed to bolt directly to the busbar system within compatible PB series panelboards and switchboards to handle high-capacity industrial loads.
Does the PB32500F include terminal lugs?
Terminal lugs and mounting hardware are typically not included with the breaker frame. Lugs must be selected and sourced separately based on the specific wire size and conductor material required for your installation.
Can the trip unit in the PB32500F be changed or upgraded?
Yes, the PB frame features an interchangeable trip unit design. This allows electricians to swap the thermal-magnetic trip unit if different protection parameters are required without replacing the entire 2500A frame.
What regulatory safety standards apply to the PB32500F?
This breaker is built to meet NEMA AB-1 standards and is certified under UL 489 and CSA C22.2 No. 5 for safe operation in heavy-duty industrial power distribution systems.
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