Specifications

65
Electrical diagrams
Remote-operated
source-changeover systems 0
2 Compact NS630b/1600 devices
Diagram no. 51201181
Electrical interlocking with emergency off by shunt release
DB101695
ATTENTION
(1) Not to be wired on fixed version.
The diagram shows the electrical wiring for circuit breakers.
When wiring the SDE with switch-disconnectors, connect
the SDE to terminals 81 and 84.
Legends
QN “Normal” source Compact NS630b to 1600
QR “Replacement” source Compact NS NS630b to 1600
OF... breaker ON/OFF indication contact
SDE1 “fault-trip” indication contact
CE1 “connected-position” indication contact (carriage switch)
F1 auxiliary power supply circuit breaker
MX shunt release
BP emergency off button with latching
KA3 auxiliary relay
ON “Normal” source opening order
OR “Replacement” source opening order
FN “Normal” source closing order (0.25 second delay)
FR “Replacement” source closing order (0.25 second delay)
MT Motor Mechanism
States permitted by mechanical interlocking system
Normal Replacement
00
10
01
Note:
after a fault trip, the breaker must be reset manually by pressing
its reset button.
Diagram shown with circuit breakers in connected position, open,
charged, and ready to close.
Auxiliary power supply = supply voltage of auxiliary relays (KA...)
= supply voltage of electrical auxiliaries (electrical operation,
MCH, MX, MN...).