Shihlin electric BW-2000, Manual

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ACB-OB
16
AIR CIRCUIT BREAKER
D
1
D
2
D
3
D
1
D
2
D
1
D
2
0 0
0 1
1 0
D
1
D
2
0 0
1 0
0 0
D
3
0
0
1
1 1
0 1
0
0
D
1
D
2
0 0
1 0
D
3
0
0
0 1
0 0
0
1
D
1
D
2
0 0
1 0
0 1
D
3
0
0
0
0 0
1 1
1
0
0 1
1 0
1
1
D
1
D
2
D
3
D
2
D
3
D
1
wiring possible cause wiring possible cause
3×breaker lock
2×normal power + 1×back up power
2×breaker lock
wiring possible cause
3×breaker lock
3×normal power for one breaker
wiring possible cause
3×breaker lock
double power and one switch
ACB mechanical interlock action figure
(Fig. 1)
(Fig. 2)
(Fig. 3)
(Fig. 4)
(Fig. 5)
5.3.2 Three-lock-two-key interlocking device
The three-lock-two-key interlocking devices are used on occasions where the breakers are
fixed dispersedly. The locks are fixed on the panels of the three breakers separately. When the
key had been inserted and rotated to horizontal position, the breaker can carry on make-break
operation. The closed breaker will be broken if rotate the key anticlockwise from horizontal to
vertical position. At the same time, making operation is forbidden and the key is allowed to
take out. It ensures that there are not more than two breakers can be closed at the same time
because there are only two keys for three locks.
5.3.2.1 Key lock
The structure of the breaking lock is the same as the three-lock-two-key. However, there is only
one key for one lock. If the off button of the breaker is locked, the on button will be disabled.
5.3.4 Button lock
The cover on the ON/OFF button with padlock position attached on ACB panel. This device
doesn't come with padlock.
5.3.5 Racking lock
It is used in drawout type breaker and it is possible to lock the disconnection, connection, test
positions.
5.3.6 Position lock
The red color button will pop up and lock the breaker main body in the position of
disconnected, test or connected.
Press the red button for continuing draw in/out the main body.
The padlock can be attached on this device.
5.3.3 Door interlock
This prevents the compartment door to be opened when the circuit breaker closed. The cdoor
interlock fixed in the foot right corner of the drawer seat.
a. The door interlock is allowed to close or open at will if the breaker is at the disconnection
position (relative to cradle).
b Breaker can be pushed in or pulled out to any position between connection and
disconnection if the compartment
door opens.
c. Breaker will be locked once the door is closed after the breaker leaving the disconnection
position.
(Fig. 1)
(Fig. 1)
(Fig. 2)
(Fig. 3) (Standard)
(Fig. 4)
(Fig. 5)