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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