Westinghouse JD Series (Westinghouse) Circuit Breakers
The Westinghouse JD series is a J-Frame molded case circuit breaker rated for 600A frame size and 600VAC operation. JD breakers cover the 70A to 600A range for motor feeder protection and industrial distribution.
Series Specifications
| Frame | J-Frame — 600A Frame |
|---|---|
| Amperage Range | 70A – 600A |
| Voltage | 600VAC |
| Poles | 2-Pole & 3-Pole |
| Interrupting Rating | 35kA @ 600V / 65kA @ 480V / 100kA @ 240V |
| Mounting | Bolt-On |
| Trip Type | Thermal Magnetic |
History and Replacement Context
The Westinghouse JD series was part of the Series C product family. After the 1994 Eaton acquisition, JD catalog numbers continued under the Cutler-Hammer brand.
Typical Applications
- Motor feeder protection
- Industrial distribution
- Large commercial applications
- Feeder circuit protection
Available Catalog Numbers
- JD3250 — 250A, 3 pole, 240/480/600VAC
- JD3100 — 100A, 3 pole, 600VAC
- JD3125 — 125A, 3 pole, 600VAC
- JD3150 — 150A, 3 pole, 600VAC
- JD3175 — 175A, 3 pole, 600VAC
- JD3200 — 200A, 3 pole, 600VAC
- JD3225 — 225A, 3 pole, 600VAC
- JD2250 — 250A, 2 pole, 600V
- JD3150W — 150A, 3 pole, 600VAC
- JD3175W — 175A, 3 pole, 600VAC
- JD3200W — 200A, 3 pole, 600VAC
- JD3225W — 225A, 3 pole, 600VAC
- JD3250W — 250A, 3 pole, 600VAC
- JD3070 — 70A, 3 pole, 240VAC
- JD3100 — 100A, 3 pole, 240VAC
- JD3125 — 125A, 3 pole, 240VAC
- JD3150 — 150A, 3 pole, 240VAC
- JD3175 — 175A, 3 pole, 240VAC
- JD3200 — 200A, 3 pole, 240VAC
- JD3225 — 225A, 3 pole, 240VAC