Circuit Diagrams - Siemens 3AH37 Operating Instructions Manual

Description
HA Manual opening
HE Manual closing
K1 Contactor relay (anti-pumping device)
M1 Motor
P Energy storage mechanism
R1 Resistor
S1 Auxiliary switch
S10, S11 Position switch (mechanical anti-pumping device)
S12 Position switch (prevents electrical closing in the event
of mechanical interlocking)
S21, S22 Position switches (switch off the motor after charging)
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Circuit diagrams

The circuit diagrams show all the available components with their wiring options.
Fig. 50 to Fig. 56 show some non-binding examples of vacuum circuit-breakers.
The circuit diagrams for the vacuum circuit-breaker are compiled depending on
your order.
Mechanical manual closing and electrical closing
-Y1
Fig. 50 Example - circuit diagram connection via low-voltage interface, 64-pin,
basic version
Electrical manual closing and electrical closing
"OPEN" release
-Y1 -Y2 -Y4
-Y4 -Y5
-Y6 -Y7
-Y7
Fig. 51 Example - circuit diagram with connection via low-voltage interface 64-
pin.
This legend is also valid for the following circuit diagrams.
"OPEN" release
-Y2 -Y4
-Y4 -Y5
-Y6 -Y7
-Y7
S3 Position switch (opens when closing spring is charged)
S41, S42 Position switches (signal charging status)
S6, S7 Position switches (for breaker tripping signal)
X0 Low-voltage interface
Y1 1st shunt release
Y2 2nd shunt release
Y4, Y5, Y6 Transformer-operated release
Y7 Undervoltage release
Y9 Closing solenoid
V6 Integrated rectifiers for motor
extended auxiliary switch
9229 9992 176 0D
2013-07-08