产品名称：BQD53系列防爆电磁启动器
一、适用范围Application
1区、2区危场所.
IIA、IIB、IIC类爆炸性气体环境
*要求IIC 类时请注明。
Can be used Zone 1 and Zone 2 dangerous places.
Can be used in IIA,IIB,IIC group explosive atmosphere.
*Please note if need IIC group.
二、产品特点 Features 型号含义Model implication
铸铝合金外壳，表面喷塑。
内装交流接触器，自复位万能转换开
关或按钮等。
可控制交流50Hz，380V，三相异步电
动机的直接起动停止，并具有过载和
断相及失压保护。
钢管或电缆布线均可。
符合GB，IEC60079 标准要求。
Diecasted AI-alloy shell with plastic-sprayed surface.
Inside is installed AC contactor,thermal relay,self-
settable universal conver-sion switch.
Able to directly control AC 50Hz,380V asynchronous
motor with the protection of overload,phase-failure
and voltage-absent.
Steel tube wiring or cable wiring.
Suitable for GB,IEC60079 standard request.
三、主要技术参数 Main technical parameters
产品型号Type
额定电压(V)Rated voltage
额定电流(A)Rated current 控制电动机最大功率（KW）Max.Power of controlled motor 继电器整定电流调节范围（A) Setting curent of thermal relay 出线口螺纹
（G")Outlet’s theread 防爆标志Ex-mark 电缆外径(Φ,mm) Cable’s outerdiameter 防护等级Protection grade
BQD53-9/□ 380/及以下 1 10-14 Exed II BT6
*Exde II CT6 IP54
B/□ 12 9-13 5.5
B/□ 18 12-18 7.5
B/□ 25 17-25 11
B/□ 40 28-45 18.5
B/□ 63 40-63 30 1/2
18-22
B/□
BQD53-9/□ 9 7-10 4及以下 1 10-14
B/□ 12 9-13 5.5
B/□N 18 12-18 7.5
B/□N 25 17-25 11
B/□N 40 28-45 18.5
*注：电流大于技术参数表上之规定的，请与工程技术人员联系
*Note:If the current is up to the technical parameters,please contact with the technology or engineering dept.
外形及安装尺寸 Outlinge and installing dimension
B(IIB) B (IIB)
B/20N(IIB)
B (IIB) B (IIB)
BN/60 (IIB)
B (IIC)