802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 27/293
Description
9.5 Operating mechanisms for three-position switch
In NXPLUS C switchgear, the three-position switch-disconnector is used both as a simple
three-position disconnector in combination with the circuit-breaker and as a three-position
switch-disconnector.
The three-position disconnector and the three-position switch-disconnector are operated from
the switchgear front.
Spring-operated mechanism (rotary lever mechanism 90°, panel width 600 mm)
• Application in the following panel types:
- Circuit-breaker panel 630 A, 1000 A, 1250 A
- Disconnector panel 1000 A, 1250 A
- Bus sectionalizer panel 1000 A, 1250 A
- Vacuum contactor panel
- Metering panel
- Ring-main panel
Slow motion mechanism (rotary lever mechanism 180°, panel width 600 mm)
• Application in circuit-breaker panel 1000 A, 1250 A with increased number of operating
cycles 5000 / 5000, 30000 operating cycles (option: 10000 / 10000, 30000 operating
cycles)
Slow motion mechanism (rotary lever mechanism 180°, panel width 900 mm)
• Application in the following panel types:
- Circuit-breaker panel 2000 A, 2500 A
- Disconnector panel 2000 A, 2500 A
- Bus sectionalizer panel 2000 A, 2500 A
①
Position indicator for three-position switch
(DISCONNECTING function)
②
Position indicator for three-position switch
(EARTHING/READY-TO-EARTH function)
③
Interrogation lever
④
Actuating opening for earthing switch
(EARTHING/READY-TO-EARTH function)
⑤
Actuating opening for disconnector
(DISCONNECTING function)
⑥
Control gate
⑦
Ready-for-service indicator
①
Position indicator for three-position switch
(DISCONNECTING function)
②
Interrogation lever
③
Position indicator for three-position switch (EARTHING/
READY-TO-EARTH function)
④
Ready-for-service indicator
⑤
Actuating opening for earthing switch (EARTHING/
READY-TO-EARTH function)
⑥
Actuating opening for disconnector (DISCONNECTING
function)
⑦
Control gate
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