Three-Position Disconnector - Siemens 8DJH Installation And Operating Instructions Manual

4.3 Three-position disconnector

500-8384.9 • Version 11 • Installation and Operating Instructions • 8DJH
Motor operating mechanism
Tab. 18: Rated currents of the motor protection equipment (protection equipment with tripping
characteristic type C):
Rated supply voltage [V]
24 DC
48 DC
60 DC
DC/AC 110 (50/60 Hz)
DC 120/125
DC 220
AC 230 (50/60 Hz)
The control voltage (including releases) is protected with 8 A.
Release
Releases trip the switch-fuse combination. The electrical opening command is transmitted to the
OPEN latch via a magnet armature by unlatching an energy store.
Depending on the operating mechanism used, up to 2 releases can be used.
▪ Shunt release (-Y1, -Y3)
Shunt releases (optional) are used to trip or electrically open the switch-fuse combination.
The opening command is executed by application of an auxiliary voltage (AC or DC,
depending on the design option).
After opening the switch-fuse combination, the release is de-energized internally.
Tab. 19: Power consumption of the operating coils
Operating coil
Shunt release (-Y1, -Y3)
Switching capacity and classification for disconnector and make-proof earthing switch according
to IEC/EN 62271-102 / VDE 0671-102:
Tab. 20: Disconnector
Rated voltage U
r
Rated normal current I
r
Number of mechanical operating cycles /
classification
Tab. 21: Make-proof earthing switch
Rated voltage U
r
Rated short-circuit making current I
Number of short-circuit making operations / Classifi-
cation
1)
Design option
Recommended rated current for the protection equipment [A]
4
2
1.6
1.0
1.0
1.0
0.5
Power consumption [W/VA]
Switch-fuse combination
≤ 370
kV 7.2
A
n
kV
50 Hz up to
ma
kA
60 Hz up to
kA
n
Technical data | 4
12 15 17.5
250, 630
1000 / M0
7.2 12 15
63
65
5 / E2
24
17.5 24
1)
50/52.5
1)
52/55
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