| 适用范围application | | - 1区、2区危场所。
- iia、iib、iic类爆竹性气体环境.
- ＊如要求iic类或增安型请注明.
- can be used in zone 1zone 2one 2 dangerous places.
- can be used in iia,iib 、iicgroup explosive atmosphere.
- ＊please note if want iic group safety-increased type
| | 防爆接线盒型号含义model implication | | 
| | 产品特点 features | | | | | | | - 表面喷塑. the shellis of diecasted ai-alloywithplastic-sprayed sunface.
- 进出线口有多种方式及规格. 铸铝合金外壳,压铸成形 inlet or outlet has many kinds of modesspecifications.
- 进出线口螺纹可特制. thread specification can be specially designed.
- 符合gb3836-2000,iec60079标准要求. suitable for gb3836-2000,iec60079 standard request.
| | 技术参数 technical parameters | | | ａｈ 系列防爆接线盒代号，外形及名称一览表
ah seriesflame-proof junction box code,outlinedesc-riptions as the following table. | | 代号
code | 外形
outline | 名称
desc-ription | 代号code | 外形outline | 名称
desc-ription | | a | | 一通平 1entry in horizon | f | | 一通吊１entry in horizon | | b | | 直二通平2 direct entries in horizon | g | | 直二通吊２direct entries in horizon | | c | | 三通平 3 entries in horizon | h | | 三通吊 3 entries in horizon | | d | | 四通平４entries in horizon | i | | 四通吊 ４entries in horizon | | e | | 直角二通平２perpendicular entries,in horizon | j | | 直角二通吊2 perpendicular entries,in horizon | 注：１.“o”表示平盖，“ｏ”表示吊盖。
２.在正常情况下，吊盖与通头同口径，如特殊要求可特制。
３.通头一般为圆柱管螺纹ｇ１／２"、ｇ１"如特殊要求可特制。
标注举例：
１.cbjh-3/4b含义：ah隔爆型接线盒，管螺纹为ｇ3/4"直二通平盖。
2.cbjh-1/2含义：ah隔爆型接线盒，管螺纹为g1/2"直角二角吊盖。
note:1"o"horzontal cover,"o"hung cover.
２ .generally the diameter of entry is equal to that of hung cover hole.special requirement can be available.
for example:
1.cbjh-3/4b means:ah explosion-proof junctino box,pipe thread g3",g3",g1",also special requirement can be made.
２.cbjh-1/2jmeans:ah explosion-proof juncton box,pipe thread g1/2",2perpendicular entries with hung cover.
| | 主要技术参数 main technical parameters | | 额定电压（v）rated volage | 额定电流（a）rated current | 防爆防标ex-mark | 管螺纹规格（g"）pipethread specification | 防护等级protectiongrade | | 380 | 20 | exd ii bt6
＊exd ii ct6
＊exe ii t5 | 1/2 、3/4 、1 | ip54
＊ip55 | | | | 外形示意图 main technical parameters | | | | ii b类，增安型接线盒外形示意
iib group,safety-increased junction box outline sketch map | | | | ii c 类接线盒外形示意
ii c group junction box outline sketch map | | | ii b类，增安型接线盒外形尺寸 ii c类，接线盒外形尺寸
dimension of iib group,safety-increased type junction box dimension of iic group junction box | | 电缆外径（φmm）ｃable’s outer diameter | 管螺纹（ｇ"）ｐipe thread | a | b | c | d | | 规格specification | l | h | h1 | | 8-10 | 1/2 | 166 | 108 | 104 | 68 | g1/2" | 175 | 85 | 110 | | 8-14 | 3/4 | 168 | 108 | 105 | 68 | g3/4" | 175 | 85 | 110 | | 12-17 | 1 | 170 | 108 | 105 | 68 | g1" | 175 | 85 | 110 | | | |
