Bussmann Eaton General Duty Fusible Disconnect Switch, 400A
The Bussmann (Eaton) RDF400J-3 is a general duty fusible disconnect switch rated at 400A, 3-pole, providing high-capacity disconnection capability for large three-phase electrical loads. Engineered for service entrance, feeder, and sub-feeder applications in industrial and commercial electrical systems, this switch delivers reliable, fuse-protected circuit isolation.
Key Specifications
- Type: General Duty Fusible Disconnect Switch
- Current Rating: 400 A
- Poles: 3
- Model: RDF400J-3
- Manufacturer: Bussmann (Eaton)
Features
- 400A rating for high-capacity circuit disconnection
- General duty construction for broad application use
- 3-pole design for three-phase circuit isolation
- Fusible design provides integrated overcurrent protection
Applications
Used in large commercial and industrial electrical systems as a service entrance disconnect, main feeder disconnect, or sub-feeder disconnect for 400A three-phase loads. Suitable for electricians and electrical contractors installing NEC-compliant, high-capacity disconnecting means in switchboards, panelboards, and motor control centers.


