217 / 582
BETA Protecting
Low-Voltage Fuse Systems
3
NP LV HRC fuse switch disconnectors
3/67
Siemens ET B1 · 10/2008
3
*
You can order this quantity or a multiple thereof.
1)
When using isolating links. If using fuse links, please observe
specifications of fuse manufacturer.
2)
For 3NP52 with clamp terminal, degree of protection IP10.
3)
With busbar adapter.
3
NP50
3
NP52
3
NP53
3
NP54
Capacitor switching capacity
At 400 V AC
Capacitor rating
kvar
80
90
150
250
Rated current
I
n
A
116
130
216
361
At 525 V AC
Capacitor rating
kvar
100
125
200
300
Rated current
I
n
A
110
137
220
330
Permissible ambient temperature
°C
-25 ...
+55 for operation
1)
-50 ...
+80 for storage
Mechanical service life
Operating
cycles
1600
Degree of protection
Without molded-plastic cover
IP00
2)
With molded-plastic cover and
closed fuse carrier on the operator side
IP30
With open fuse carrier
IP10
Power loss of switches at
I
th
(
plus power loss of the fuse links)
without busbar adapter
W
7.8 (16.3
3)
)
7.5
15
39
Main conductor connections
Cable lug, max. conductor cross-section (stranded) mm
2
2.5 ... 120
6 ... 150
6 ... 240
6 ... 2
× 240
Busbars
mm
16 ... 22
22 ... 30
22 ... 30
22 ... 30
Clamp terminal
mm
2
2.5 ... 50
35 ... 120
--
--
Tightening torques
With cable lugs
Nm
18 ... 22
25 ... 30
25 ... 30
25 ... 30
With busbars
Nm
18 ... 22
25 ... 30
25 ... 30
25 ... 30
With clamp terminal
Nm
9 ... 11
5 ... 6
--
--
Terminal screws
With cable lugs
M8
M10
M10
M10
With busbars
M8
M10
M10
M10
With clamp terminal
M8
2
× M6
--
--
PE/ground terminal
Cable lug acc. to DIN 46234
mm
2
--
2.5 ... 70
6 ... 2
× 70
6 ... 2
× 120
Busbars
mm
--
25
25
30
Terminal screws
--
M8
M10
M10
Auxiliary switch 1 NO + 1 NC (accessories)
(
the same voltage potential must be applied to both
NO and NC contact)
At 50 Hz/60 Hz to 400 V AC,
Rated operational current
I
e
at AC-12/AC-15
A
16/6
Flat plug-in terminal (DIN 46244)
mm × mm 6.3 × 0.8
Permissible mounting positions
Vertical or horizontal installation
(
switching capacity is sometimes reduced with horizontal installation)
Fuse monitors with 3RV motor starter protectors
See motor starter protectors in Catalog LV 1.
Electronic fuse monitoring
Rated voltage AC 50 Hz/60 Hz
V
400 -15 % ... 500
+10 %, self-powered (infeed from above)
Max. starting current
A
20
Continuous current
A
5
Breaking current
A
5
Switching capacity
VA
1000
Short-circuit strength (1 ms)
A
100
Response time
s
< 1
Temperature range (operation)
°C
-10 ...
+75
Plug-in connectors/connections
6
P
Minimum potential difference required between top
and bottom connections of the switch
(
e.g. for use in meshed networks)
V
>10
Signal contact for electronic fuse monitoring
2
NO + 1 NC
Rated operational current
I
e
At 250 V, DC-13
A
0.27
At 240 V, AC-15
A
1.5
Rated free air thermal current
I
th
A
5
© Siemens AG 2008