29
Air Circuit Breakers
BT2 series
Technical data
Reference table of main circuit wiring copper bar for draw-out circuit breaders
Rated frame current (A)
Rated current (A)
Specifications of copper bars
Number
Size (mm×mm)
1600
200
1
20×5
400
1
50×5
630
2
40×5
800
2
50×5
1000
3
40×5
1250
4
40×5
1600
2
50×10
2000
630
2
50×5
800
2
60×5
1000
2
60×5
1250
3
60×5
1600
2
60×10
2000
3
60×10
2500
1250
3
60×5
1600
2
60×10
2000
3
60×10
2500
4
60×10
4000
2000
3
100×5
2500
4
100×5
2900
3
100×10
3200
4
100×10
3600
4
100×10
4000
5
100×10
6300
4000
5
100×10
5000
6
100×10
6300
8
100×10
The specifications of copper bars in the above table are introduced under which the circuit breakers by open installation are at maximum ambient environment
temperature of 40°C and satisfy conventional heating in IEC60947-2.
