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)
When the actual ambient temperature is 400C |
||
Busbar sectionmm2 |
Maximum allowable current A |
|
Lay flat |
Vertical |
|
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 |
Contact: Mike
Phone: +8613853146766
Tel: +860531-55500506
Email: Leanne@busbarmc.com
Add: Jinan jingshi west load NO.9566