Switch Disconnectors

3NJ4, 3NJ5 In-Line Fuse Switch Disconnectors up to 2000 A

Introduction

7/148

Siemens LV 10 · 2014

■

Overview

3NJ4/3NJ5 fuse switch disconnectors

All key product features at a glance

• Compliant with IEC/EN 60439-1, IEC/EN 60947-3

• Voltage levels up to 690 V AC

• Rated operational current from 160 A to 2000 A

• Fuse links according to IEC 60269 Part 1 can be used – nickel-

plated fuse blades are not permissible due to the high transfer

resistance

• In open position safe from touch by the back of the hand

(exception 3NJ56: IP00)

• Parking position for maintenance

• 1-pole or 3-pole switchable

• Vertical and horizontal mounting position

• Climate-proof

• Degree of protection IP30 with closed fuse carriers, IP10 with

open fuse carriers (exception 3NJ56: IP00)

Overview of all components and accessory parts: 3NJ4/3NJ5 in size 00

Cover

Terminal strip

Busbar terminal

Current transformer

Distance compensation

Flat connector

Saddle terminal

Prism terminal

Box terminal

Cover

3NJ4/5 fuse switch disconnector

Basic device size 00

Auxiliary switch mounting kit

Adapter for screw fixing

on busbar systems

uznWWWYZZ