2020年7月27日星期一

busbar shearing punching machinebusbar cutting machine

Matching of common copper busbar section and rated working current in low-voltage switchgear

              According to the maximum allowable temperature of the busbar 700C (the busbar selection is subject to 500C data)

bus bar center

When the actual ambient temperature is 400C

Busbar sectionmm2

Maximum allowable current A

Lay flat

Vertical

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15×3

162

171

20×3

214

225

25×3

271

285

30×4

366

385

40×4

484

510

40×5

551

580

50×5

669

705

50×6

735

775

60×6

873

920

60×8

1016

1070

60×10

1133

1195

80×6

1110

1205

80×8

1260

1370

80×10

1417

1540

100×6

1356

1475

100×8

1546

1685

100×10

1720

1870

120×8

1800

1955

120×10

1996

2170

2(60×6)

1340

1410

2(60×8)

1660

1750

2(60×10)

1985

2090

2(80×6)

1580

1720

2(80×8)

1950

2120

2(80×10)

2345

2550

2(100×6)

1855

2015

2(100×8)

2290

2490

2(100×10)

2735

2710

2(120×8)

2550

2770

2(120×10)

3090

3360

3(60×6)

1670

1815

3(60×8)

2080

2260

3(60×10)

2560

2690

3(80×6)

2040

2215

3(80×8)

2530

2750

3(80×10)

2990

3250

3(100×6)

2370

2580

3(100×8)

2945

3200

3(100×10)

3450

3750

3(120×8)

3260

3540

3(120×10)

3920

4260

4(100×10)

4000

4350

4(120×10)

4450

4840

 

 

portable busbar punching machine

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