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Switch Disconnectors
3NP1 Fuse Switch Disconnectors up to 630 A
Introduction
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Siemens LV 10 · 2014
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Overview
3NP1 fuse switch disconnectors
All key product features at a glance
• Box terminals available for all sizes
• Connection of circular conductors and laminated conductors
• Fuse monitoring possible throughout
• Busbar supports can be built over
• Conversion of 5/10 mm thick busbars without parts which can
be lost or broken off
• Convertibility of cable feeder at top/bottom without interven-
tion in the internal conducting paths
• Optimum integration in various system environments through
cover levels and on busbar systems with/without base
• Touch protection also with rear incoming feeder
• Fuses are removed using a release shaft without the fuses
being touched
• All units can be sealed and locked
Overview of all components and accessory parts
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3NP1 fuse switch disconnector
Cover masking frame support
Reach-around protection for Siemens busbar system
Reach-around protection for Rittal busbar system
Locking device
Auxiliary switch with actuator
Molded-plastic masking frame
Fuse carrier with MFM electromechanical fuse monitoring
Fuse carrier with EFM 20/25 electronic fuse monitoring
Fuse carrier with EFM 10 electronic fuse monitoring
Box terminal
Auxiliary conductor connection for box terminal
Flat connector
Auxiliary conductor connection for flat connector
Deep-drawn connection module
Prism terminal
Auxiliary conductor connection for prism terminal
Saddle terminal
Cable connection cover with rear reach-around protection
Cable connection cover
NSG0_00235
© Siemens AG 2014