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Bestimmungen IEC 60947-1, IEC 60947-3, VDE 0660 Part 107
Schalter Typ 3NP50 3NP52 3NP53 3NP54
Bemessungsdauerstrom I
u
A 160 250 400 630
Bemessungsbetriebsspannung U
e
AC 50 Hz/60 Hz V 690
DC V 440 (3 conducting paths in series)
220 (2 conducting paths in series
and for mounted fuse monitoring)
Bed. Bemessungskurzschluss-Strom mit Sicherungen
mit Sicherungseinsätzen Bem.strom Gr./A 00/160 1/250 2/400 3/630
bei AC 500 V kA (Effektivwert) 50 50 50 50
zul. Durchlass-Strom d. Sicherung kA (Scheitelwert) 15 25 40 50
Kurzschlussfestigkeit mit Sicherungen
(bei geschl. Schalter)
mit Sicherungseinsätzen Bem.strom Gr./A 00/160 1/250 2/400 3/630
bei AC 500 V kA (Effektivwert) 100 100 50 50
zul. Durchlass-Strom d. Sicherung kA (Scheitelwert) 23 32 40 60
Bemessungsbetriebsstrom und Schaltvermögen
(Einspeisung von oben oder unten)
bei AC 400 V
mit Sicherungseinsätzen oder Trennlaschen Gr. 00 1 0 2 1 3 2
Bemessungsausschaltstrom I
c
(cos = 0,35)
(Effektivwert) A 1600
2500 1600 4000 2500 5040 4000
Bemessungsbetriebsstrom I
e
bei A
160 250 160 400 250 630 400
100 160 125 315 200 400 315
bei AC 690 V
mit Sicherungseinsätzen oder Trennlaschen Gr. 00 1 0 2 1 3 2
Bemessungsausschaltstrom I
c
(cos = 0,35)
(Effektivwert) A 800
1280 1000 2520 1600 3200 2520
Bemessungsbetriebsstrom I
e
bei
bei AC-21B A 160 250 160 400 250 630 400
bei AC-22B A 160 250 160 400 250 630 400
bei AC-23B A 100 160 125 315 200 400 315
Quickly mounted onto all busbars
With our standard 3NP4 series (size NH000 up to
NH3), you have made the optimum choice for the
majority of applications – from power distribution
in residential and commercial buildings through
flexible distribution stations up to power distribu-
tion in large industrial plants. Our fuse switch
disconnectors 3NP4 also shine when used as main
and feed-in switches in industry, control panel
building and in motor feeders as well as back-up
protection for circuit-breakers. The sealing lug
means that the 3NP4 fuse switch disconnectors can
be used in meter cabinets and service entry boxes
in residential buildings without any restrictions.
The same applies for DIN rails, mounting panels,
and busbar systems.
For the highest requirements in tough
environments
These really are rugged devices: Our 3NP5 fuse
switch disconnectors (sizes NH00 to NH3) also
provide reliable protection where switch dis-
connectors must stand up to a lot. This is especially
true in mining, in the steel industry and also in the
chemical industry. The 3NP5 series as well as the
3NP40 1 and 3NP40 7 versions are available in a
galvanized design for use in environments with
a significant amount of sulfur. These switch
disconnectors provide the highest degree of safety
for the plant and operating personnel when used
as main control switches with good AC-23
characteristics – e.g. for motor loads.
Technische Daten
Standards IEC 60947-1, IEC 60947-3, VDE 0660 Part 107
Disconnector Type 3NP40 1 3NP40 7 3NP42 3NP43 3NP44
Rated continuous current I
u
A 160 160 250 400 630
Rated operating voltage U
e
for disconnectors with fuse monitoring
max. up to 220 V DC
50 Hz/60 Hz AC V 690 690
DC V 220 (3 conducting 440 (2 conducting
paths in series) paths in series)
Rated conditional short-circuit current with fuses
(when quickly closing)
with fuse links, rated currents Size/A 000/100(35) 00/160 1/250 2/400 3/630
at 400 V AC (690 V) (RMS value) kA 50 (50) 50 50 50 50
permissible fuse let-through current (peak value) kA 11 (5) 15 25 35 55
Short-circuit strength with fuses
(with the disconnector closed)
with fuse links, rated current Size/A 000/100 000/160 1/250 2/400 3/630
up to 690 V (RMS value) kA 100 50 50 50 50
permissible fuse let-through current (peak value) kA 15 15 25 35 55
Rated operating current and switching capacity
(feed from either the top or bottom)
at 400 V AC
with fuse links or isolating links Gr. 000 00 1 2 3
rated breaking current I
c
(cos = 0.35)
(RMS value) A 800 800 2000 3200 5040
Rated operating current I
e
at
AC-21B, AC-22B A 160 160 250 400 630
AC-23B A 100 100 250 400 630
at 690 V AC Gr. 000 00 1 2 3
with fuse links or isolating links Gr. 00 1 0 2 1
rated breaking current I
c
(cos = 0.35)
(RMS value) A 240 240 375 600 945
Rated operating current I
e
at
AC-21B A 160 160 250 400 630
AC-22B A50 50 – – –
AC-23B A25 25 – – –
Technical data: Fuse switch disconnectors 3NP