FBZA8030 粉塵防爆控制按鈕(DIP)
FBZA8030 Dust Explosion-Proof Circline Button (DIP)
適用范圍：
1. 可燃性粉塵危險場所：20區、21區、22區；
2. 導電性或非導電性粉塵環境。
1. For the dangerous sites with explosive dust mixture:
20 division, 21 division, 22 division;
2. Electric of non-electric dust environmet.