JBZK-10 防爆照明开关(ⅡB)JBZK-10 Explosion-Proof & Lighting Switch (ⅡB )    1. 爆炸性气体环境危险场所：1区、2区；2. 可燃性气体、蒸气级别：ⅡA、ⅡB；3. 温度组别：T1~T5；4. 户内、户外 (IP55)。1. For the dangerous sites with explosive air mixture:1 division、2 division;2. Flammable gas, steam class：ⅡA、ⅡB;3. Temperatures classification：T1~T5;4. Indoor and outdoor(IP55).    1. 铸铝合金外壳，压铸成形，表面喷塑；2. 外壳内装隔爆型开关，外壳接合部位有橡胶密封圈密封，防护等级可达IP55；3. 钢管或电缆布线。1. Diecasted of Al-alloy shell with moulded-shapement and plastic-sprayed surface;2. The increased safety is mounted the flame-proofing switch inside, the joint part of outer shell is sealed by rubber lock ring, The protective grade is up to IP55;3. Steelpipe and cable wiring.   额定电压Rated voltage(V)额定电流Rated current(A)防爆标志Explosion-proofing marker防护等级Protectioncategory防腐等级Corrosion-proofing grade进线口螺纹Inlet's thread电缆外径(mm)Cable's outsidediameter质量Weigh(kg)22010ExedⅡBT5IP55WF1, WF2G3/4Φ10~Φ150.75