nader NDW3 Series Manual page 124

When users install the circuit breaker into the cabinet, the safe distance between the circuit breaker
and the cabinet is shown in the figure below, and the installation dimensions are shown in the table below.
Drawout circuit breaker
Installation mode of
the circuit breaker
Drawout type
Fixed type
Installation mode of
the circuit breaker
Drawout type
Fixed type
Note: 1. The safety distance of the fixed circuit breaker should consider the space required to remove the arc
extinguishing chamber of 150mm;
2. If a dust cover is added, the height space for installation and rotation of the dust cover should be considered
to be 70mm;
3. If the distance to the live body cannot meet the requirements in the table, insulation measures should be
added between the circuit breaker and the live body.
Chapter 7 Electrical Wiring Diagram
7.1 NDW3-1600 Electrical Wiring Diagram and Terminal Number Definition ....................................................... 126
7.2 NDW3-2500/4000/6300 Electric Wiring Diagram and Terminal Number Definition ................................... 130
7.3 Electrical wiring diagram of voltage-check closing device ................................................................................... 134
Internal & confidential file
File No.:NDT2920202
To the insulator
A B
0 0
0 0
to insulator(≥)
C D
0 0
0 0
第 124 页 共 149 页
Fixed circuit breaker
To the metallic body
grounded safely
A B
0 0
0 0
E F C
0 0 0
0 0 0
File Version:4
To the live part
A B
60 60
60 60
to the live part
D E F
60 60 60
60 60 60
Unit: mm