. 5 3 .
Air Circuit Breaker
. 5 2 .
15.10 Operation pushbutton lock
Used for locking the break pushbutton and the close pushbutton. ( Padlock is prepared by users)
15.11 Transparent shield (NA1-2000)
Installed on the doorcase of the cubicle's small door, make the protection class to IP54. It is suitable
for the fixed, drawout type circuit breaker and the load switch.
15.12 Cable mechanical interlock
It can realize the interlock of two horizontal or vertical-installed, three poles or four poles ,drawout type or fixed type circuit breaker.
a.If need bend the cable, make sure the radian is more than 120°.
b.Check and make sure enough lubricating oil of the cable.
c.The maximal distance between two interlock circuit breaker is 2m.
15.13 Connecting-rod type mechanical interlock
Three vertical-installed three-poles or four-poles, drawout- type or fixed type circuit breakers realize the interlock between one breaker with
another two different-state breakers.
2m(max)
1QF
2QF
1QF
2QF
0
0
0
1
1
0
Circuit diagram
Available running manner
Notes: a. when the steel cable needs to be bent, enough transition arc should be reserved to guarantee flexible movement of steel cable;
b. check the steel cable and make sure there is enough lubricant in the steel cable to guarantee flexible movement of steel cable.
1QF
2QF
1QF
3QF
0
0
0
1
0
0
3QF
2QF
0
0
1
1
0
0
1QF
2QF
3QF
1QF
3QF
0
0
0
1
0
0
2QF
0
0
1
1
1
0
1
0
0
Circuit diagram
Available running manner
Manner 1: three power supplies are provided
for one circuit breaker only
Circuit diagram
Available running manner
Manner 2: two normal power supplies (1QF, 3QF)+
one replacement power supply (2QF)
15.7 Phases barrier
Installed between the busbars to increase the creepage distance.
15.8 Off position locking mechanism
When the circuit breaker is disconnected, padlock can be used to lock it after pulling out the lock lever, then the circuit breaker can't be “Test”
or “connected” position.( Padlock is prepared by users)
15.9 Key lock
Lock the circuit breaker on the OFF position, then the circuit breaker can't be closed.
Locks and keys will be provided by us.
Separate lock and key is matched with one set of the circuit breaker.
Three same locks and two same keys are matched with three circuit breaker.
Note: Before pulling out the key, the break pushbutton should be pressed first, rotate the key anticlockwise, then pull it out.
hole
Summary of Contents for NA1-1000
Page 1: ...2007 2008 Catalogue Air Circuit Breaker ...
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Page 5: ...Air Circuit Breaker ...
Page 8: ... 2 1 3 4 5 6 7 8 11 12 13 14 15 Air Circuit Breaker ...
