参考外径 选用防爆箱通头 参考外径 选用防爆箱通头
3X2.5 11.8 G3/4" 14 G3/4"
3X4 12.9 G3/4" 15.3 G1"
4X2.5 12.3 G3/4" 14.7 G1"
4X4 13.5 G3/4" 15.9 G1"
4X6 14.7 G1" 17.1 G1"
4X10 17.2 G11/4" 19.6 G11/4"
4X16 19.6 G11/4" 22 G11/4"
3X25+1X16 23 G11/4" 25 G11/2"
3X35+1X16 24.5 G11/2" 26.5 G11/2"
3X50+1X25 27.7 G2" 32.1 G2"
3X70+1X35 32.8 G2" 36.2 G21/2"
3X95+1X50 37.5 G21/2" 40.5 G21/2"
3X120+1X70 41.7 G21/2" 44.7 G3"
3X150+1