BDL防爆电铃（ⅡB、ⅡC）
适用范围Application
1区、2区危场所。
IIA、IIB、IIC类爆竹性气体环境.
Can be used in Zone 1 and Zone 2one 2 dangerous places.
Can be used in IIA,IIB 、IICgroup explosive atmosphere.
型号含义Model implication
产品特点 Features
铸铝合金外壳,表面喷塑. 圆筒隔爆面,防爆性能好,安全可靠. 铃碗表面镀铍青铜,打击时不会引起火华.
符合GB,IEC60079 标准要求.
The shell is of diecasted Al-alloy with plastic-sprayed surface.
Cylinder enclosure can be well explosion-proof,safe and secure.
The surface of bell is brass plated,which won’t produce sparkle when being hitten.
Suitable for GB,IEC60079 standard request.
主要技术参数 Main technical parameters
使用类别Usage
额定电压（V）Rated voltage
功率（W）Power 音响强度（dB)Sornd level 铃盖直径Bell cover 防爆标志Ex-mark 防护等级Protection grade 进线口螺纹（G")Protection
grade 电缆外径(Φmm))Cable’s outerdiameter
AC
AC 36、110、220、220
24、36、110、220 ≤20 ≥75(R=2m) 125 Exd II BT6
*Exd II BT6 IP54 3/4 8-14
外形及安装尺寸 Outlinge and installing dimension