Siemens NXAIR M - Page 100

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