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7.4.1.2
Transfer between three 3VA molded case circuit breakers, with electrical interlock
The following diagram applies for the applications 2S-1T-PL and 2S-NPL:
You can find more information on the applications in chapter Load management with the
ATC6500 (Page 20)
Code
Description
BRK 1
3VA molded case circuit breaker for Source 1
BRK2
3VA molded case circuit breaker for Source 2
TB
3VA molded case circuit breaker as tie breaker
HS
Auxiliary switch (for electrical interlocking)
HS
Auxiliary switch (status)
AS
Alarm auxiliary switch (trip)
X1
Terminals of the motor operator
Note
IEC regulations
According to IEC regulations, the fusible element must be connected via a cable compliant
with IEC 61439-1 which is protected against ground faults and short circuits. To this end,
please observe the applicable national standards for electrical installations.
3KC ATC6500 transfer control device
Manual, 05/2019, L1V30538268002A-01
7.4 Connection of 3VA molded case circuit breakers
Connection
111
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