Switch Disconnectors

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Switch Disconnectors
Introduction
7/2 Siemens LV 10 · 2014
7
■ Overview
Article No. Page
Switch disconnectors
3LD
• Devices for front mounting, floor mounting with door-coupling rotary operating
mechanism, distribution board mounting or in molded-plastic enclosures
• Front mounting with four-hole and center hole arrangement
• 3, 4 and 6-pole versions
• 3 and 4-pole load transfer switches
• Solar plant isolators 800 V DC
3LD 7/3
5TE1
• For floor and distribution board mounting
• 2, 3 and 4-pole versions
5TE1 7/27
3KA/3KE
• Devices for floor mounting with handle, with door-coupling rotary operating mecha-
nism, in molded-plastic enclosures and for mounting in control cabinet side panels
• 3 and 4-pole versions
• Accessories for use as load transfer switches and parallel switches
3KA, 3KE 7/32
3VT
• Compact design allowing it to be used where space is limited.
• 3 and 4-pole versions
• Coordinated, comprehensive range of accessories for greater functionality, e.g.
- Motorized operating mechanisms
- Shunt and undervoltage releases for remote control
- Switching state interrogation by means of auxiliary and alarm switches
3VT 7/44
Switch disconnectors with fuses
3KL
• Devices for floor mounting with door-coupling rotary operating mechanism
and for mounting in control cabinet side panels
• 3KM versions with isolating plug connector for mounting on vertical busbars
• 3 and 4-pole versions
• Suitable for NH and BS 88 fuse systems
3KL, 3KM 7/68
3NJ62
• 2, 3 and 4-pole versions
• Suitable for NH and BS 88 fuse systems
• Manually operated or with motorized operating mechanism
• Optionally with integrated current transformers, auxiliary switches and electronic
fuse monitoring
3NJ62 7/90
Fuse switch disconnectors
3NP1
• Rated current up to 630 A
• Connection components are available for flat connection, saddle terminal
connection, prism terminal connection and box terminal connection
• Electromechanical and electronic fuse monitoring with/without network monitoring
function
• Mounting versions for floor mounting and 40/60 mm busbar system
3NP1 / 3NP5 7/115
3NJ4/3NJ5
• 1- and 3-pole switchable versions
• Versions for secondary-side protection of transformers
• In-line infeed block versions up to 2000 A with isolating blades
• Connection components are available for flat connection, stud bolt connection,
saddle terminal connection, prism terminal connection and box terminal connection
• Versions with/without integratable current transformer
• Versions with/without electronic fuse monitoring
3NJ4, 3NJ5 7/148
© Siemens AG 2014