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Operating the double-busbar system
Fig. 162: Control elements on the panel front of the
circuit-breaker panel for double-busbar
system, panel B
100
(1)
Door to the low-voltage compartment
(2)
Protection device
Locking device for the door to the low-voltage
(3)
compartment
Test sockets for voltage detecting system
(4)
(type LRM) for the busbars as additional
component
Instruction label for closing the
(5)
high-voltage door
(6)
High-voltage door
Opening for charging the spring in the circuit-
(7)
breaker manually (covered)
(8)
Handle for opening the high-voltage door
Control gate for opening and closing the
(9)
actuating opening for racking the switching
device
Actuating opening for racking the switching
(10)
device
Actuating opening for inserting the double-bit
(11)
key to control racking of the withdrawable part
Mechanical position indicator for withdrawable
(12)
part
(16)
Operations counter for circuit-breaker
(17)
Spring state indicator for circuit-breaker
(18)
CLOSED/OPEN indicator of the circuit-breaker
Actuating opening for opening the circuit-
(19)
breaker
Actuating opening for closing the circuit-
(20)
breaker
Rotary button to close and open the actuating
(21)
opening located below
NXAIR M
139-2021.9 / 07
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