适用于IIA IIB IIC爆炸危险气体1区和2区使用。可燃粉尘21区和22区防爆标志: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:WF1、WF2环境温度:-55℃≤Ta≤+65℃