Overview
The Bussmann (Eaton) ER1-600J3PB is a heavy-duty enclosed rotary disconnect switch rated 600V and 600A, featuring a Class J fuse mounting and a pistol-grip operating handle for positive, one-hand operation. Housed in a NEMA 1 black enclosure, this switch provides a lockable disconnecting means compliant with NEC service equipment and disconnect requirements for industrial plants, commercial facilities, and utility distribution applications. The Class J fuse rating delivers high-speed short circuit protection upstream of sensitive equipment.
Features
- 600V, 600A rating for high-capacity service entrance and feeder disconnect applications
- Class J fuse class provides current-limiting, high-speed short circuit protection
- Pistol handle design enables positive, one-hand operation and clear ON/OFF indication
- NEMA 1 enclosure for indoor installation with protection against accidental contact
- Lockable handle for lockout/tagout (LOTO) safety compliance
Specifications
| Attribute | Value |
|---|---|
| Model | ER1-600J3PB |
| Manufacturer | Bussmann (Eaton) |
| Voltage Rating | 600V |
| Amperage Rating | 600A |
| Fuse Class | J |
| Handle Type | Pistol |
| NEMA Rating | 1 |
| Color | Black |
| UPC | 05171241613 |



