本产品是根据按国家标准GB3836.1~3-2000设计与制造，适用于爆炸性气体环境中危险场所1区、2区，可燃性气体、蒸气级别IIA、IIB温度组别T1～T4，户内户外有蔽场所，在交流50Hz、额定电压至380V，额定电流至400A电路的不频繁接通与分断，且具有过载、短路等保护，漏电断路器还具有漏电保护功能。
Applying scope
1、Explosive gas atmospheres:Zone 1＆2
2、Dangerous gases or vapors zone: IIA、IIB、IIC
3、Temperature classes:T1～T6
4、Indoor and outdoor（IP54.It could be designed as IP65 according to user′s requirement.）

采用高强度铸铝合金压铸制成隔爆型主腔及接线腔。主腔内装有C45系列、NM10系列、DZ20系列、CM1系列断路器，通过操作机构及外部手柄进行操作，并有“分”、“合”指示，接线腔内有与主腔相贯通的接线端子，并有电缆引入装置，内外设有接地螺钉。
1、Enclosure is made of casting aluminium alloy,surface is sprayed with plastics
2、Built-in MEILIN GERIN small breakers such as DZ20、CM1
3、With overload and short circult protection function
4、Under-Voltage or/and voltage loss protection function could be added
5、For user′s requirement, it could be specially made
6、Wiring with conduit or cable. For cable, it should be fitted with explosion-protected cable sealing connector