- Home
- Fuseless switch disconnectors
- Fuse switch disconnectors
- Switch disconnectors with fuses
- 3KF up to 800 A
- Product description
- Overview of components
- Technical specifications
- Derating values of 3KF fuse switch disconnectors when using SITOR fuses according to IEC constraints
- Derating table for use of SITOR fuses IEC from 32 to 160 A
- Derating table for use of SITOR fuses IEC from 250 to 800 A
- Derating values when using SITOR fuses according to UL constraints
- Derating table for use of SITOR fuses UL from 32 to 160 A
- Derating table for use of SITOR fuses UL from 250 to 800 A
- 3NJ62 up to 630 A
- 3KF up to 800 A
- 8UD1 door-coupling rotary operating mechanisms
Application
The 3NP5 fuse switch disconnectors are ideally suited for surface mounting and installation in the ALPHA distribution boards and SIVACON 8MF1 system cubicles.
The ability to mount them on a range of different busbar systems allows their very diverse implementation in switchboard cabinet and control engineering.
The 3NP5 fuse switch disconnectors are ideal for operation in combination with other switching devices, for example in capacitor modules for reactive-power compensation.
In conjunction with semiconductor protection fuses (e.g. SITOR), these are used for the effective protection of frequency converters and soft starters.
The 3NP5 fuse switch disconnectors are climate-proof and meet the requirements of IEC 60947-1, IEC 60947-3 and DIN VDE 0660 Part 107.
In addition, the 3NP5 series of fuse switch disconnectors complies with the requirements of BS 5419 and is also approved for operation in marine applications.
All 3NP5 fuse switch disconnectors can be sealed as standard (or can be sealed through accessories).