The Eaton JD3400 is a 400-amp, 3-pole, 600V Series C J-Frame molded case circuit breaker from Eaton's Cutler-Hammer product line. Designed for heavy-duty feeder and main circuit protection in industrial and commercial applications, the JD3400 delivers reliable thermal-magnetic LI protection with a 35kAIC interrupting rating at 480V. It is 80% rated for continuous loading and features a visual trip indicator for fast fault identification.
| Specification | Value |
|---|---|
| Amperage | 400A |
| Poles | 3 |
| Voltage | 240/480/600VAC |
| Interrupt Rating | 65kA @ 240V · 35kA @ 480V · 25kA @ 600V |
| Frame Size | J-Frame (600A Frame) |
| Mounting Type | Bolt-On |
| Trip Type | Thermal Magnetic |
| Trip Function | LI — Long-Time, Instantaneous |
| Wire Size | 250–750 kcmil (Al/Cu) |
| Phase | 3-Phase |
| Standards | UL 489, CSA C22.2 No.5, NEMA AB 1 |
| Temperature Rating | -25°C to 70°C |
Replaces: Cutler-Hammer JD3400, Westinghouse JD3400
Eaton / Cutler-Hammer JD J-Frame Series C 400A 3-pole circuit breaker. In stock at AllBreakerSales.com. Call (877) 611-0034 for same-day pricing. Genuine OEM parts, ships from US warehouse.
Brand: Eaton / Cutler-Hammer | Series: JD J-Frame Series C | Catalog Number: JD3400
JD3100 - Eaton / Cutler-Hammer JD J-Frame | JD3125 - Eaton / Cutler-Hammer JD J-Frame | JD3150 - Eaton / Cutler-Hammer JD J-Frame | JD3175 - Eaton / Cutler-Hammer JD J-Frame | JD3200 - Eaton / Cutler-Hammer JD J-Frame