適用范圍
　　1區、2區危險場(chang)所。
　　ⅡA、ⅡB類爆炸性(xing)氣體環境。
　　防爆斷路器特點
　　鑄鋁合(he)金(jin)外殼，表(biao)面噴塑
　　內裝高(gao)分斷小型斷路器或(huo)低壓(ya)塑殼式斷路(lu)器.
　　具有過載(zai),短路保護功能,也(ye)可(ke)根(gen)據要(yao)求加裝
　　漏電分勵脫扣等保護裝置.
　　鋼管或電纜布線均可(ke).
　　符合GB3836-2000.IEC60079標(biao)準要求.
　　BLK52-63/4防爆斷路器主(zhu)要技術參數
　　額定電壓（V）：220/380
　　脫扣額定電流(liu)：根據現場(chang)實(shi)際需求定做
　　防(fang)爆標志：Exde II BT6 Exde II CT5
　　防護(hu)等級(ji)：IP54 IP55
　　電纜外徑（Φ，mm）:根據現(xian)場實際需(xu)求定做
　　防腐等級：WF1
　　進線(xian)口螺紋（G）:根據現(xian)場實際需求定(ding)做
　　BLK52-63/4L防(fang)爆斷(duan)路器(qi)_4P帶(dai)漏(lou)電(dian)主(zhu)要部件是個(ge)磁(ci)(ci)(ci)(ci)環(huan)(huan)感應器(qi),火(huo)(huo)線(xian)(xian)(xian)(xian)和零(ling)線(xian)(xian)(xian)(xian)采用并(bing)列繞法在磁(ci)(ci)(ci)(ci)環(huan)(huan)上纏繞幾圈(quan),在磁(ci)(ci)(ci)(ci)環(huan)(huan)上還(huan)有個(ge)次(ci)級線(xian)(xian)(xian)(xian)圈(quan).當同一(yi)相的火(huo)(huo)線(xian)(xian)(xian)(xian)和零(ling)線(xian)(xian)(xian)(xian)在正常工作(zuo)時,電(dian)生(sheng)的磁(ci)(ci)(ci)(ci)通正好抵消,在次(ci)級線(xian)(xian)(xian)(xian)圈(quan)不會感應出電(dian)壓.如果某(mou)一(yi)線(xian)(xian)(xian)(xian)有漏(lou)電(dian),或未接(jie)零(ling)線(xian)(xian)(xian)(xian),在磁(ci)(ci)(ci)(ci)環(huan)(huan)中(zhong)通過(guo)(guo)的火(huo)(huo)線(xian)(xian)(xian)(xian)和零(ling)線(xian)(xian)(xian)(xian)的電(dian)流(liu)就會不平衡,而產(chan)生(sheng)穿過(guo)(guo)磁(ci)(ci)(ci)(ci)環(huan)(huan)的磁(ci)(ci)(ci)(ci)通,在次(ci)級線(xian)(xian)(xian)(xian)圈(quan)中(zhong)感應出電(dian)壓,通過(guo)(guo)電(dian)磁鐵使脫扣器動(dong)作跳(tiao)閘.