Glass fiber reinforced polyester resin enclosure , it is the structure of increasing safety , built - in element of isolating explosion . these elements of isolating esplosion have nore advantage , such as compact structure , reliable quality , smaller volume , hige capacity of turning on / off , amd long life . fine appearance , erosion - proof , welding spark _ proof , resisting static electricity , waterproof , good thermal stability , etc . user may select the arrangement of element . may use cables to connect it 玻璃纖維增強(qiáng)不飽合聚脂樹脂外殼,增安型結(jié)構(gòu),內(nèi)裝隔爆型元件.隔爆型元件具有結(jié)構(gòu)緊湊,可靠性好,體積小,通斷能力強(qiáng),壽命長等優(yōu)點(diǎn).外形美觀,耐腐蝕,耐沖擊,防電焊火花,抗靜電,防水及熱穩(wěn)定性好.元件排列組合可按用戶要求隨意組合.所有的堅(jiān)固件都采用不銹鋼螺釘.電纜布線