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- 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
Fuse switch disconnectors are used for occasional load switching and provide reliable isolation from the infeed. The ability to use fuses with LV HRC design means the system can be protected against short circuit and overload. In practice, they are generally used as main control switches or repair switches.
Standards and guidelines
The 3NP1 fuse switch disconnectors meet the requirements of the standards IEC 60947-1, IEC 60947-3 and VDE 0660-107 and are climate-proof.
Certificates
3NP1 has been awarded a large number of international certificates for global use.
For information about currently available certifications, e.g. CE, CCC, UL, shipbuilding, see www.siemens.com/lowvoltage/certificates.
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