Siemens LV 10 · 2004 7/3
Switch Disconnectors and Fuses
Introduction
7
Type 3NP 3K

SENTRIC

Rated uninterrupted current

I

U
at 35°C ambient temperature A160 ... 630 63 ... 1000
Rated operating voltage
U
eV690 690
AC-21
at 400 V ✓ ✓
at 500 V ✓✓
at 690 V ✓ ✓
AC-22
at 400 V ✓ ✓
at 500 V ✓✓
at 690 V ✓ ✓
AC-23
at 400 V ✓ ✓
at 500 V – ✓
at 690 V –✓
Switch versions
Front mounting –✓
Base mounting ✓✓
Busbars
•40 mm ✓–
•60 mm ✓✓
•185 mm – –
Molded-plastic enclosure ✓ ✓
Switch accessories
4th pole (N conductor)
(leading switch-on,
delayed switch-off contact)
–✓
Auxiliary contacts
1 NO + 1 NC – ✓
1 CO ✓✓
Fuse monitoring
•with circuit-breakers ✓✓
•with electronics ✓✓