Siemens 3AH3 - Circuit Diagram Introduction; Sample Closing Circuit Diagrams

Description
38 9229 9860 176 0E
2013-08-22
Circuit diagrams
The circuit diagrams show all the available components with their wiring options.
Fig. 51 to Fig. 57 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
Fig. 51 Example – circuit diagram connection via low-voltage interface, 64-pole,
basic version
Electrical manual closing and electrical closing
Fig. 52 Example – circuit diagram with connection via low-voltage interface 64-
pole
This legend is also valid for the following circuit diagrams.
-Y1 -Y2 -Y4
-Y4 -Y5
-Y6 -Y7
-Y7
“OPEN” release
-Y1 -Y2 -Y4
-Y4 -Y5
-Y6 -Y7
-Y7
“OPEN” release
extended auxiliary switch
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 if there is a
mechanical locking device)
S21, S22 Position switches (switch off the motor after charging)
S3 Position switch (opens when closing spring is charged)
S41, S42 Position switches (signal charging status)
S6, S7 Position switches (for circuit-breaker tripping signal)
X0 Low-voltage interface
Y1 1. shunt release
Y2 2. shunt release
Y4, Y5, Y6 Transformer-operated release
Y7 Undervoltage release
Y9 Closing solenoid
V6 Integrated rectifiers for motor