| Method of operation Actuation by two-way
pushbutton S11: Pushbutton I energizes pilot contactor Q14. Q14 switches
capacitor C1 in with bridged series resistors R2. Normally open contact
Q14/14–13 energizes mains contactor Q11. Capacitor C1 is then switched
in with bridged series resistors R2. Q14 is maintained via Q11/14–13
when Q11 has closed.
Discharge resistors R1 are not operative when Q11 and Q14 are energized.
Pushbutton 0 effects de-energization. Normally closed contacts Q11/21–22
and 31–32 then switch discharge resistors R1 to capacitor C1.
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