xample;
1.BHD51-3/4B BHD51means explosion-proof junction box pipe thread G3/4〃2direct entries with-horizontal cover
2.BHD51-1/2J BHD51 means explosion-proof junction box pipe thread G1/2〃2 perpendicular entries with hung cover
额定电压(V)
Rated voltage
额定电流(A)
Rated current
防爆标志
Ex-mark