215 / 582
BETA Protecting
Low-Voltage Fuse Systems
3
NP LV HRC fuse switch disconnectors
3/65
Siemens ET B1 · 10/2008
3
*
You can order this quantity or a multiple thereof.
1)
Only with isolating links; otherwise, please observe specifications
of fuse manufacturer.
1)
Implementation up to U
i
= 1000 V is also possible if maintaining
degree of pollution 2 (instead of 3).
3
NP40 1
3
NP40 7
3
NP42 7
3
NP43 7
3
NP44 7
Capacitor switching capacity
At 400 V AC
Capacitor rating
kvar
50
50
--
--
--
Rated current
I
n
A
72
72
--
--
--
At 525 V AC
Capacitor rating
kvar
50
50
--
--
--
Rated current
I
n
A
55
55
--
--
--
Permissible ambient temperature
°C
-25 ...
+55
1)
for operation
-50 ...
+80 for storage
Mechanical service life
Operating
cycles
2000
2000
1600
1000
1000
Degree of protection
(
operator side)
Without molded-plastic cover/cable lug cover
IP00 (3NP40 with box terminal and properly connected conductors: IP20)
With molded-plastic cover/cable lug cover
IP30 (switch closed), IP20 (switch open)
Power loss of switch at
I
th
(
plus power dissipation of fuse links)
Without busbar adapter
W
4.5 (
at 100 A)
10
15
30
47
with busbar adapter
W
8.5 (
at 100 A)
20
47
83
127
Main conductor connections
Flat terminal for cable lug acc. to DIN 46234,
mm
2
--
Up to 2 × 70 Up to 150
Up to 240
Up to 2 × 240
Max. conductor cross-section (stranded)
(
M8)
(
M10)
(
M10)
(
M12)
Box terminal/terminal
(
finely stranded, with end sleeve)
mm
2
1.5 ... 50 (35)
2.5 ... 70 (50)
70 ... 150
120 ... 240
150 ... 300
Busbars (width × thickness)
mm × mm --
22
× 5
22 ... 30
×
22 ... 30
×
25 ... 40
×
5 ... 10
5 ... 10
5 ... 10
Laminated Cu strips, non-perforated in terminals
(
width × thickness)
mm × mm 8 × 8
Up to 9 × 8
Up to 16 × 8 Up to 20 × 10 Up to 24 × 10
Tightening torques for terminal screws
For flat terminals
Nm
--
10 ... 12
30 ... 35
30 ... 35
35 ... 40
With SIGUT box terminal/terminal
Nm
3 ... 3.5
8 ... 10
6
8
8
Auxiliary switch 1 CO
(
accessories)
3
NY3 035
50
Hz/60 Hz to 230 V AC
rated operational current
I
e
at AC-14
A
0.25 (
I
th
= 5 A), at 24 V DC:
I
e
= 0.45 A; flat termination according to DIN 46244:
A 2.8 × 0.5
3
NY3 030
50
Hz/60 Hz to 230 V AC
Rated operational current
I
e
at AC-13
A
0.1 (
I
th
= 0.1 A); quick-connect terminal according to DIN 46245: A 2.8 ... 1
Permissible mounting positions
Vertical or horizontal installation (no reduction of specified switching capacity)
3
NP50
3
NP52
3
NP53
3
NP54
Standards
IEC 60947-1, IEC 60947-3, VDE 0660-107
Approved acc. to
UL508
Rated uninterrupted current
I
u
A
160
250
400
630
For fuse links acc. to DIN 43620
Size
00
1
and 0
2
and 1
3
and 2
(
if using semiconductor protection fuse links, the
rated current must be reduced – see catalog
"
Configuring SITOR"
,
Order No. E20001-A700-P302)
Conventional free air thermal current
I
th
A
160
250
400
630
Rated operational voltage U
e
50
Hz/60 Hz
V AC
690
V DC
440 (3
conducting paths in series),
220 (2
conducting paths in series and for fuse monitoring through 3RV)
Rated insulation voltage U
i
V
690
1)
Rated impulse withstand voltage U
imp
kV
6
Rated conditional short-circuit current
with fuses
(
by fast switch on)
With fuse links
Rated current
Size/A
00/160
1/250
2/400
3/630
At 500 V AC
kA
(
r.m.s. value)
50
50
50
50
Permissible let-through current of the fuses
kA
(
peak value)
15
25
40
50
© Siemens AG 2008