测试条件说明

环境参数

环境温度:40°C
安装方式:水平放置

材料特性

材质:C11000紫铜
表面发射率:0.4

测试标准

符合ASTM B187/B187M标准
工业环境60天实测值

尺寸 T×W
(in / mm)
截面积 重量
kg/m
电阻
μΩ/ft²
30°C升 50°C升 65°C升
mm² CM SE A SE A SE A
1/16 x 1/2
(1.6×12.7mm)
20.139.70.18264.01.001031.001361.00157
1/16 x 3/4
(1.6×19.1mm)
30.359.70.27175.01.001451.001931.00225
1/16 x 1
(1.6×25.4mm)
40.379.60.361321.001871.002501.00285
1/16 x 1 1/2
(1.6×38.1mm)
60.51190.5487.71.002701.003551.00410
1/16 x 2
(1.6×50.8mm)
80.61590.7265.81.013451.014601.01530
1/8 x 1/2
(3.2×12.7mm)
40.379.60.361321.001531.002051.00235
1/8 x 3/4
(3.2×19.1mm)
60.51190.5487.71.002151.002851.00325
1/8 x 1
(3.2×25.4mm)
80.61590.7265.81.012701.013601.01415
1/8 x 1 1/2
(3.2×38.1mm)
121.32391.0843.81.013851.015101.01590
1/8 x 2
(3.2×50.8mm)
161.33181.4432.91.024951.026601.02760
1/8 x 2 1/2
(3.2×63.5mm)
201.33971.8026.41.026001.028001.02920
1/8 x 3
(3.2×76.2mm)
241.94772.1621.91.037101.039401.031100
1/8 x 3 1/2
(3.2×88.9mm)
282.65582.5118.81.048101.0311001.031250
1/8 x 4
(3.2×101.6mm)
322.66362.8716.51.049101.0412001.041400
3/16 x 1/2
(4.8×12.7mm)
60.51190.5487.71.001951.002601.00300
3/16 x 3/4
(4.8×19.1mm)
91.01790.8158.41.012701.013601.01415
3/16 x 1
(4.8×25.4mm)
121.32391.0843.81.013401.014551.01520
3/16 x 1 1/2
(4.8×38.1mm)
181.33581.6229.31.024801.026301.02730
3/16 x 2
(4.8×50.8mm)
241.94772.1621.91.036101.038101.03940
3/16 x 2 1/2
(4.8×63.5mm)
302.65972.6917.51.047401.049801.031150
3/16 x 3
(4.8×76.2mm)
362.67153.2314.61.058701.0511501.041350
3/16 x 3 1/2
(4.8×88.9mm)
423.28353.7612.51.079901.0613001.061500
3/16 x 4
(4.8×101.6mm)
483.99554.3211.01.0911001.0814501.071700
1/4 x 1/2
(6.4×12.7mm)
80.61590.7265.81.012401.013151.01360
1/4 x 3/4
(6.4×19.1mm)
121.32391.0843.81.013201.014251.01490
1/4 x 1
(6.4×25.4mm)
161.33181.4432.91.024001.025301.02620
1/4 x 1 1/2
(6.4×38.1mm)
241.94772.1621.91.035601.037401.03860
1/4 x 2
(6.4×50.8mm)
322.66372.8716.51.047101.049401.041100
1/4 x 2 1/2
(6.4×63.5mm)
403.27963.5913.21.068501.0611501.061300
1/4 x 3
(6.4×76.2mm)
483.99554.3211.01.089901.0813001.071550
1/4 x 3 1/2
(6.4×88.9mm)
564.511105.039.401.1011501.0915001.091750
1/4 x 4
(6.4×101.6mm)
645.212705.748.231.1212501.1117001.101950
1/4 x 5
(6.4×127.0mm)
806.515907.196.581.1615001.1520001.142350
1/4 x 6
(6.4×152.4mm)
967.719108.635.491.1817501.1723501.172700
3/8 x 3/4
(9.5×19.1mm)
181.33581.6229.31.024151.025501.02630
3/8 x 1
(9.5×25.4mm)
241.94772.1621.91.035101.036801.03790
3/8 x 1 1/2
(9.5×38.1mm)
362.67153.2314.61.057101.049401.041100
3/8 x 2
(9.5×50.8mm)
483.99554.3211.01.088801.0811501.071350
3/8 x 2 1/2
(9.5×63.5mm)
605.211905.398.771.1210501.1014001.091600
3/8 x 3
(9.5×76.2mm)
722.614306.477.351.1512001.1416001.131850
3/8 x 3 1/2
(9.5×88.9mm)
845.216707.536.381.1813501.1618001.152100
3/8 x 4
(9.5×101.6mm)
967.719108.635.491.2015001.1920001.182350
3/8 x 5
(9.5×127.0mm)
1,212.9239010.804.381.2418001.2324001.222800
3/8 x 6
(9.5×152.4mm)
1,451.6286012.933.661.2721001.2628001.243250
1/2 x 1
(12.7×25.4mm)
322.66372.8716.51.046201.048201.04940
1/2 x 1 1/2
(12.7×38.1mm)
483.99554.3211.01.088301.0811001.071250
1/2 x 2
(12.7×50.8mm)
645.212705.748.231.1210001.1113501.101550
1/2 x 2 1/2
(12.7×63.5mm)
806.515907.196.581.1612001.1516001.141850
1/2 x 3
(12.7×76.2mm)
967.719108.635.491.2014001.1918501.182150
1/2 x 3 1/2
(12.7×88.9mm)
1,129.0223010.064.701.2415501.2221001.212400
1/2 x 4
(12.7×101.6mm)
1,290.3255011.504.111.2617001.2523001.242650
1/2 x 5
(12.7×127.0mm)
1,612.9318014.373.291.3220501.3027501.293150
1/2 x 6
(12.7×152.4mm)
1,935.5382017.262.741.3624001.3431501.333650
1/2 x 8
(12.7×203.2mm)
2,580.6509023.062.061.4230001.4040001.394600

应用指南

载流量选择

  • 建议预留25-30%裕度
  • 考虑实际散热条件

降额使用情况

  • 高海拔地区:空气稀薄
  • 通风受限环境
  • 并排或垂直安装

安装建议

  • 并排间距≥铜排宽度
  • 确保通风良好

技术标准

  • ASTM B187/B187M:铜母线标准规范
  • IEC 60890:温升计算方法
  • GB/T 7251.12-2013:低压成套开关设备和控制设备