Fuse switch disconnector 3-pole selectable, for protection of transformers on the secondary side up to 1000 kVA for LV HRC fuses GTR 2x722 A max., 400 V AC, and NH3 disconnecting blade up to 2000 A The 3NJ4 fuse switch disconnectors for low-voltage distribution. 3NJ4 1-pole and 3-pole in-line fuse switch disconnectors can be installed in low-voltage distribution boards, substations and cable distribution cubicles.
Features
- Compliance with IEC/EN 60439-1 and IEC/EN 60947-3
- Voltage levels up to 690 V AC
- Parking position for maintenance
- Vertical and horizontal mounting position
- Weathering resistance
- Degree of protection IP30 with closed fuse carriers, IP10 with open fuse carriers