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BETA Protecting
Low-Voltage Fuse Systems
3
NH LV HRC fuse bases
3/50
Siemens ET B1 · 10/2008
3
*
You can order this quantity or a multiple thereof.
■
Benefits
■
Technical specifications
•
The silver-plated Lyra contact provides a large contact area
for the contact blade of the LV HRC fuse link. This improves
heat transmission and lowers the temperature. It also mini-
mizes aging of the fuse link in the maximum load range, in
particular when using SITOR fuses
•
The large contact area also facilitates replacement of
LV HRC fuse links
•
The spring washer that tensions the contact is mechanically
galvanized. This prevents hydrogen embrittlement. The con-
tact is resistant to aging and there will be no dreaded
annealing of contacts, which considerably improves operating
safety.
LV HRC fuse bases, LV HRC bus-mounting bases
Size
000/00
0
1
2
3
4
Standards
IEC 60269-1, -2; EN 60269-1; DIN VDE 0636-2
Rated current
I
n
A
160
160
250
400
630
1250
Rated voltage U
n
V AC 690
690
(
Also suitable for 1000 V SITOR fuse links)
V DC 250
440
Rated breaking capacity
kA AC 120
kA DC 25
Flat terminals
Screw
M8
M10
M12
Nut
M8
--
Max. tightening torque
Nm 14
38
65
Plug-in terminals
Conductor cross-section
mm
2
2.5 ... 50
--
Saddle-type terminals
Conductor cross-section
mm
2
6 ... 70
--
Box terminals
Conductor cross-section
mm
2
2.5 ... 50
Terminal strips
Conductor cross-section, 3-wire
mm
2
1.5 ... 16
--
Max. torque
for attachment of LV HRC fuse base
Nm 2
2.5
--
LV HRC fuse bases with slewing equipment
LV HRC fuse bases with swivel mechanism
Size
000/00
1
3
4
a
Rated voltage U
n
V AC 690
V DC 440
Power loss
W 4
5
20
32
Flat terminals
Screw
M8
M10
M12
M16
Nut
M8
--
Max. tightening torque
Nm 14
38
65
© Siemens AG 2008