防(fang)爆電(dian)(dian)笛,鑄(zhu)鋁合金外殼,表面(mian)噴塑(su);鋼管(guan)或電(dian)(dian)纜布線(xian)。電(dian)(dian)壓(ya)24、36 24、36、220 直流 交(jiao)流防(fang)爆ExdIIBT4ExdIICT4防(fang)護等(deng)級 IP65,防(fang)腐等(deng)級 W、WF1進線(xian)口螺(luo)紋(wen)(G)G1/2,電(dian)(dian)纜外徑(mm) Φ8-Φ10持(chi)續通電(dian)(dian)時間 ≤5min