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Fuse switch disconnectors
Instructions
Safety from finger-touch
See Technical data
Commissioning and maintenance by qualified persons only.
Follow the operating instructions!
Application
The fuse switch disconnectors are used for closing on and disconnection of rated
operating currents up to 160 A AC.
Installation
For dimension drawings see Fig. I (dimensions in mm).
a 3NP5060 b 3NP5060/3NP5065 with auxiliary circuit switch
c 3NP5060 with fuse monitoring via 3RV1
d 3NP5065 e 3NP5065 with fuse monitoring via 3RV1
f 3NP5060 with electronic fuse-failure monitoring (via EMDS module)
g 3NP5060 with electr. fuse-fail. monit. (via EMDS module) plus accessory 3NY1918
h 3NP5065 with electronic fuse-failure monitoring (via EMDS module)
For permissible mounting positions see Fig. IIa.
Installation apertures and mounting holes:
- for panel mounting see Fig. IIb
- for front mounting with installation kit see Fig. IIc
Maintain clearances to earthed components.
For rear mounting see Fig. IIIb. Ensure that the surface is level!
Fix switch with 2 M5 screws (minimum length 12 mm);
always use plain and spring washers.
For mounting in metal switchpanels, the fuse switch disconnectors must be combined with
a moulded-plastic masking frame.
The cutout must not be smaller than specified.
Mounting with fixing plate see Fig. IV.
Fixing to busbar system (DIN 43 870 Part 2) see Fig. Va, b.
3NP5065-1.: for installation acc. to DIN 43 620 Part 6
× × ×
Bus cross-section 1 (12 5) mm/2 (12
40 mm
Spacing of busbar supports see Fig. Vc.
For front mounting with 3NY1208 installation kit, see Fig.VI
For installation apertures and mounting holes see Fig. IIc
With built-on pilot switch, the area marked on the masking frame must be cut out,
see Fig. VIc, A.
.
For fitting the arc chute see Fig. IIIc
Connection
For main conductor see Fig. VIb
- with cable lug (3NP506.-.A..)
∅
2
to DIN 46 234 ( mm )
∅
2
to DIN 46 235 ( mm )
Terminal screws
Tightening torque
- with busbar: bar width
Terminal screws
Tightening torque
- with terminal clamp
Terminal screws
Tightening torque
Connection of auxiliary circuit switch:
Push-on sleeve 6.3×2.5 mm or 6.3×1 mm to DIN 46 247
With control voltage >AC 25 V all
connections must be insulated.
Operation
Where the incoming feeder enters from below and the connection
angle is ≤ 30°, the contact elements of the fuse inserts are live!
Installation of fuse links for fuse switch disconnectors see Fig. VIII.
a version without fuse monitoring
Use fuse links with silver-plated blades or silver-plated disconnecting links only!
Press contact springs against fuse body see Fig. VIIIb, 2.
After installation, check that the arc chute fits firmly.
Hook fuse carrier on contact frame see Fig. IIIc 6, 7.
Maintenance
Grease the main contacts (with Shell Alvania RLQ2 or another high-grade aging-resistant
mineral-oil-based lithium-soap grease/worked penetration: 265 - 295, service temperature:
-30 to +120 °C), and grease the latching springs on the sides of the baseframe at the
pivoting points of the fuse carrier (e. g. with Molykote paste D), approx. every 6 months
according to switching rate.
For replacement of the arc chute see Fig. IIIa, 3 and IIIc, 5.
For replacement of the fuse link see Fig. VIIIa and b.
2
× × ×
5) mm/1 (12 10) mm, distance between centres
.
.
.
min. max
8 to 2.5 8 to 120; 10 to 150
8 to 16 8 to 70; 10 to 95
M8
18 to 22 Nm
16 to 22 mm
M8
8 to 22 Nm
(3NP506.-A..) see Fig. VII
M8
9 to 11 Nm
b version with fuse monitoring
Order No.: 3ZX1012-0NP50-1AA1
WARNING:
HAZARDOUS VOLTAGE
CAN CAUSE ELECTRICAL SHOCK
AND BURNS.
DISCONNECT POWER BEFORE PROCEEDING
WITH ANY WORK ON THIS EQUIPMENT.
Retrofitting of auxiliary switch 3NY3033 see Fig. IXa.
1 Bore tapped through-holes (M4) for plastic screws with toothed lock washers. 2 Auxiliary
circuit 1NO + 1NC. 3 Clamping member.
For fitting the plug connector to (or removing it from) the circuit-breaker see Fig. IXb or the
EMDS module see Fig. IXc.
Function
Version with fuse monitoring see Fig. X.
- via 3RV1 (3NP5060-0E..6/3NP5065-1E..6):
Auxiliary switch and 3RV1 circuit-breaker are wired.
- for U 24 to 690 V AC see Fig. Xa.
e
- for U 24 to 150 V DC see Fig. Xb.
e
- for U 100 to 440 V DC see Fig. Xc.
e
For auxiliary circuit (3RV1) see Fig. XI.
a 1 NO + 1 NC b 2 NO
31 NC/33 NO = blue 41 NC/43 NO = black
32 NC/34 NO = brown 42 NC/44 NO = white
- via electronic fuse-failure monitoring (EMDS) module (3NP5060-0H.1./
3NP5065-1HF1.) see Fig. Xd:
¿ Operation/Fault À Fuse failure
U 400/500 V AC
e
Auxiliary circuit 1 NC + 2 NO see Fig. Xd
33 white, 34 red).
Internal power supply:
The electronic fuse-failure monitoring (EMDS) module operates only when power is
supplied from above. If no voltage is present at L1 and/or L2, there is no status indica-
tion. The switch disconnector can still be live. If no voltage is present at L3, the green
LED flashes.
Version without fuse monitoring
≤
- for U 220 V DC see Fig. XIIa
e
Technical data
Restricted safety from finger-touch to IEC 60529, DIN 40 050
(only from the operating side).
Degree of protection IP 00 without moulded-plastic masking frame
Degree of protection IP 10 with masking frame with the fuse carrier open
Degree of protection IP 30 with masking frame with the fuse carrier closed
Weight: without fuse monitoring
with fuse monitoring via 3RV1
with fuse monitoring via EMDS
Permissible ambient temperature
- operation
- storage
Operating behaviour
Insulation rating
Rated current I = continuous current
th
1)
Size of fuse links
Rated conditional fused short-circuit current
at
and
or at
and
Rated short-circuit making capacity with isolating
links
at
Rated thermal currents
Fuse link
Fuse switch disconnector, open-type
Fuse switch disconnector, enclosed
Auxiliary switch
Rated thermal current
Rated operational current at 400 V
(50/60 Hz)
1
) Approved fuse links: Low-voltage hight-rupturing-capacity (l.v.h.r.c.) fuses to DIN VDE 0636
Part 21 and DIN 43 620 Part 1.The nominal ratings for operation and of the fuses must not
exceed the nominal ratings of the equipment.
Pertaining to the use of semiconductor fuse-links to DIN VDE 0636 Part 23 and DIN 43 620
Part 1: see catalog DA 94, SITOR fuse-links. The operating restrictions indicated therein
must be observed.
For further data and order numbers for accessories and spare parts, see Catalog
NS K.
3NP5060, 3NP5065
DIN VDE 0660 Part 107, IEC 60947-3
c 2 NC
Á Auxiliary circuit 1 NC + 2 NO
Á
(11 brown, 12 black, 23 blue, 24 grey,
≤
- for U 440 V DC see Fig. XIIb
e
3NP5060 3NP5065
1.8 kg 2.3 kg
2.5 kg 3.0 kg
2.3 kg 2.8 kg
-25 °C to +55 °C
-50 °C to +80 °C
1600 switching cycles
U 690 V
i
160 A
00
I 105 kÂ
I 160 A
n
U 500 V AC
e
I 100 A
n
U 690 V AC
e
U 500 V AC
e
I 6 kÂ
I 160 A
e
I 160 A
th
I 160 A
the
I 16 A
th
I /AC-12 16 A
e
I /AC-15 6 A
e
English