B-
B-
B-
B-17
17
17
17
7.
7.
7.
7. Installation,
Installation,
Installation,
Installation, operation
operation
operation
operation and
and
and
and maintenance
maintenance
maintenance
maintenance
7.1 Connecting wire
A single-core copper wire with PVC insulation is used as connecting wire for the breaker. The wire section is selected
according to table 13.
Table 13
7.2 Installation
7.2.1 Before you install a circuit breaker, you must fist check up contents in boxing paper, then fix the breaker vertically on an
installing board by bolts.
7.2.2 Wiring in a main circuit
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Wiring of the fixed connection: An end of wire, with PVC and its section specified in item 7.1, after insulation outer PVC
in suitable length is stripped, is inserted into the hole of a hoop. The outer of the hoop must tightly be pressed, and the
wire must be fastened, then the junction hole of the hoop is tightly connected with the terminal of breaker by screws. If it
is copper row, the connecting board must fist be fixed on the breaker, then the copper row is fastened with the
connecting board.
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Wiring of the rear connection: The connecting board is first fixed according to fig.16, then it is fastened with an
appropriate wire.
7.2.3 Auxiliary circuit wiring
An auxiliary circuit is connected according to a corresponding breaker board.
7.2.4 Insert the phase separator between phases.
7.2.5 Check
Before operating a circuit breaker, you must check it according to requirements of installation. The fixed and connected parts
must be stable and reliable, so you can repeatedly operate the breaker. Its operating mechanism must also be flexible and
Current
In (A)
16
20
32
40
50
63
80
100
125
160
180
200
225
250
315
350
400
500
630
700
800
900
1000
1250
Wire
section
mm
2
2.5
6.0
10
16
25
35
50
70
95
120
185
240
50*3
40*5
50*5
70*5
Number
1
2
