Switch Disconnectors

3NP5 Fuse Switch Disconnectors up to 630 A

Introduction

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Siemens LV 10 · 2014

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Overview

3NP5 fuse switch disconnector range

3NP5 fuse switch disconnectors are controls for the occasional

manual switching/isolating of loads and distribution boards.

They are able to switch on, control and switch off the specified

rated current (including a specific overload).

With the 3NP5 fuse switch disconnectors, all poles of down-

stream electric loads can be safely disconnected from the sys-

tem under load.

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Application

The 3NP5 fuse switch disconnectors are ideally suited for

surface mounting and installation in distribution boards (e.g.

ALPHA, SIKUS), meter cabinets (e.g. ALPHA 400-ZS), and

molded-plastic distribution systems such as 8HP.

The ability to mount them on a range of different busbar systems

allows their very diverse implementation in switchgear cabinet

and control engineering.

The 3NP5 fuse switch disconnectors are ideal for operation in

combination with other switching devices, for example in capac-

itor modules for reactive-power compensation.

In conjunction with semiconductor protection fuses (e.g. SITOR),

these are used for the effective protection of frequency convert-

ers and soft starters.

The 3NP5 fuse switch disconnectors are suitable for use in any

climate and comply with standards IEC 60947-1, IEC 60947-3

and DIN VDE 0660 Part 107.

In addition, the 3NP5 series of fuse switch disconnectors com-

plies 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).

3NP52

3NP54

3NP50