适用于IIA、IIB、IIC类爆炸危险气体1区、2区使用。可燃性粉尘 21 区和 22 区前标记:Ex db IIC Gb、Ex eb IIC Gb、Ex tb IIIC Db。II 2G Ex db IIC Gb、II 2G Ex eb IIC Gb、II 2D Ex tb IIIC Db。ATEX 证书编号:EPT 20 ATEX 3883UIECEx 证书编号:IECEx EUT 20.0016U耐腐蚀等级:WF1、WF2环境温度:-55℃≤Ta≤+65℃