861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11 17/214
Description
Function Depending on its equipment, the circuit-breaker is closed mechanically by means of an
ON pushbutton, or electrically. The operating power is transmitted to the vacuum interrupters
through an operating linkage.
In case of a motor operating mechanism, the closing spring is charged by means of a motor
and latched in the charged position. The "spring charged" indication is visible. Closing is
effected via pushbutton or closing solenoid. The closing spring is recharged automatically for
auto-reclosing.
If the motor supply voltage fails, the closing spring can be charged manually. To do this, there
is an opening in the front cover, with the hand crank coupling of the gear behind. The
charging condition of the spring can be read on the "spring charged" indicator, see page 155,
"Closing the circuit-breaker manually".
7.3 Equipment
Basic equipment Basic equipment of the circuit-breaker:
• Electrical operating mechanism (charging motor) with mechanical and electrical
anti-pumping device (-M1)
• Closing solenoid (-Y9)
• 1st shunt release (-Y1)
• Low-voltage plug connector with 2-, 4- and 10-pole wiring (-Q0)
• Auxiliary switch, max. 12 NO + 12 NC freely available (-S1)
• Position switch for "closing spring charged" indication (-S41, -S42)
• Circuit-breaker tripping signal, cutout switches (-S6, -S7)
•Operations counter
• Feeder locking device
Additional equipment • Extended auxiliary switch, max. 22 NO + 22 NC freely available (-S1)
• Shunt release (-Y2)
• Undervoltage release (-Y7)
• Interlocking between feeder locking device and three-position disconnector
(circuit-breaker only lockable in earthed position)
Possible release
combinations
Release Type Release combination
1 2 3 4
1st shunt release 3AY1510 X X X X
2nd shunt release 3AX1101 - - - X - - - X
Undervoltage release 3AX1103 - - - - - - X X
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