16
Design and specifications are subject to change without notice
01/2008
4.3 Electrical diagrams.
4.3.1 Wiring coding system.
The main circuits are not shown in the wiring diagrams
due to clarity. The control circuit is presented as a typical
circuit diagram and is a combination of numbered basic
diagrams for drives, trips and indicators.
Using the key numbers of the basic plan, you can derive
the number of the complete diagram.
Key position:
1 / 2
3
4
5
6
7
8
Breaker type
Aux. voltage supply
ED tripping device
Closing drive
Aux. tripping device
Indicators
Aux. switches
SEL system
EXAMPLE:
Key number:
36 / 1
2 20 10 01
2
S
Gerapid
With voltage converter
With ED coil and NEKO
With closing drive
Wtih shunt trip
With OCT indicator
With 5 aux. switches
With SEL system
Fig. 22 Example of wiring code for AEG type labels.
Key
position
Key
number
Designation
Type
1
36
Gerapid
Auxiliary voltage
2
1
Voltage converter
2
DC 24V external supply
Tripping coil
3
0
Without ed-trip coil
1
With ed-trip coil
2
With ed-trip coil and NEKO
control unit
Drive
4
20
Solenoid drive with
SU control unit
Tripping device
5
00
Without trip unit
10
With shunt trip
20
With zero voltage release
Indication device
6
00
Without indicators
01
OCT indicator
02
Arc chute indicator
03
OCT + arc chute indicator
Auxiliary contacts
7
1
3 auxiliary switches
2
5 auxiliary switches
3
10 auxiliary switches
Current-measurement system
8
S
with SEL
Indication of components
Q1
Circuit breaker
S1
Push button „CLOSE“
S2
Push button „OPEN“"
SU control unit:
K1
Closing relay
K2
Internal emergency STOP relay
1)
Shunt trip, zero voltage release:
K1
Internal emergency STOP relay
1)
HS11
Auxiliary contact
ED-tripping device with internal NEKO unit:
K1
Voltage monitoring relay
1)
These relays are part of internal emergency STOP circuit. It
is a 24VDC closed circuit, through all the control units in the
box. Serial connection of all emergency relays is realized
through connections ( :5/:6) in every PCB’s terminal. In case
of control voltage lost or unit’s damage, circuit is locking
possibility to switch ON the breaker.