一、適用范圍

1．1區(qū)、2區(qū)危險場所。

2．IIA、IIB、IIC類，溫度組別為T1-T4的爆炸性氣體環(huán)境。

3．適用于可燃性粉塵場所。

4．戶內、戶外均可。

二、型號含義

BX M D 51-□/□□□□□□□□□□

                                                      WF1：戶外防中腐蝕

                                                      出線口螺紋規(guī)格

                                                      出線口數(shù)

                                                      出線口方向：D為上方，X為下方

                                                      進線口螺紋規(guī)格

                                                      進線口數(shù)

                                                      進線口方向：D為上方，X為下方

                                                      總開關電流

                                                      K：主回路帶總開關（不帶不注）