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
 
BAL防爆电铃，BAL-125防爆电铃特点 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GB3836-2000,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 GB3836-2000,IEC60079 standard request.
 
BAL防爆电铃主要技术参数 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