Description
28/121 Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • 500-8067.9
Motor operating
mechanism
Rated currents of the motor protection equipment (protection equipment with tripping
characteristic type C):
The control voltage (including releases) is protected with 8 A.
Releases 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.
Power consumption of the operating coils
8.3 Three-position disconnector
Switching capacity and classification for disconnector and make-proof earthing switch
according to IEC/EN 62271-102 / VDE 0671-102:
Disconnector
Make-proof earthing switch
Rated supply voltage [V] Recommended rated current for the
protection equipment [A]
24 DC 4
48 DC 2
60 DC 1.6
DC/AC 110 (50/60 Hz) 1.0
DC 120/125 1.0
220 DC 1.0
AC 230 (50/60 Hz) 0.5
Operating coil Power consumption [W/VA]
Switch-fuse combination
Shunt release (-Y1, -Y3) ≤ 370
Rated voltage U
r
kV 7.2 12 15 17.5 24
Rated normal current I
r
A 250, 630
Number of mechanical operating cycles / Classification n 1000 / M0
Rated voltage U
r
kV 7.2 12 15 17.5 24
Rated short-circuit making current I
ma
50 Hz up to kA 63
50/52.5
1
1
Design option
60 Hz up to kA 65
52/55
1
Number of short-circuit making operations / Classification n 5 / E2
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