适用范围
适用于爆炸性气体环境1区、2区
适用于IIA、IIB、IIC级爆炸性气体环境
适用于温度组别为T1~T4的环境
适用于石油采炼、储存、化工、医疗、军工及军事设施等爆炸性危险环境
用于接通或分断电路、换接电源或负数，也可直接控制小容量电动机。
产品特点
外壳采用铝合金高压铸造成型，表面经抛丸后高压静电喷塑
本系列产品为复合型结构，主腔采用隔爆型结构，接线腔采用增安型结构
用于交流50Hz，额定电压220V或380V的电气线路的不频繁的接通或分断
可用作换接电源或负载、测量电路等，也可控制小容量电动机
可根据客户要求选配带倒顺功能
钢管或电路布线
技术参数
BHZ51——防爆转换开关
X——DIP：粉尘防爆（非粉末防爆不注）
X——额定电流
X——极数（2：二极；3：三极）
X——P：带倒顺功能（不带不注）
执行标准：GB 3836.1、GB 3836.2、GB 3836.3、GB 12476.1、IEC60079
防爆标志：ExdIIBT6、ExdIICT6、DIP A20 TA，T6
额定电压：AC V
额定电流：10A、25A、63A
引入口规格：2-G3/4"(10A，25A)、2-G1(63A)
适用电缆外径：φ9mm~φ14mm、φ11mm~φ18mm
防护等级：IP54、IP65（配防雨罩）
防腐等级：WF1
订货举例
1、若需订购BHZ51系列防爆转换开关，额定电流为60A，极数为3极，防爆等级为IIC级，则订货型号为：BHZ(IIB)
2、若需订购BHZ51系列防爆转换开关，额定电流为25A，极数为3级，防爆等级为IIB级，带倒顺功能，则订货型号为：BHZ(IIB)
产品英文介绍：
Scope of application
Suitable for explosive gas environment zone 2, zone 1
Applicable to IIA, IIB, IIC class explosive gas environment
Suitable for temperature group for T1~T4 environment
Applicable to oil production and refining, storage, chemical, medical, military and military facilities, such as explosive dangerous environment
Used for connecting or breaking circuit, switching power supply or negative number, can also directly control the small capacity motor.
Product features
The shell is made of Aluminum Alloy high pressure casting forming, surface of high-pressure electrostatic spraying after blast
This series of products for the composite structure, the main chamber of the explosion - proof structure, the wiring chamber using an enhanced structure
For AC 50Hz, rated voltage 220V or 380V of electrical circuits are not frequently connected or broken off
Can be used for power supply or load, measuring circuit, etc., but also can control the small capacity motor
According to customer requirements optional with reverse function
Steel pipe or circuit wiring
technical parameter
BHZ51 - explosion proof switch
DIP - X: dust explosion (non powder explosion does not note)
X - rated current
X - number of poles (2: 3: a diode;)
P - X: with inverted function (not with no note)
Execution standard: GB 3836.1, GB 3836.2, GB 3836.3, GB 12476.1, IEC60079
Explosion proof mark: ExdIIBT6, ExdIICT6, A20 TA DIP, T6
Rated voltage: V AC
Rated current: 10A, 25A, 63A
Introduction port specifications: 2-G3/4 (10A, 25A), 2-G1 (63A)
For cable diameter: 9mm~ Phi Phi 14mm, Phi Phi 18mm 11mm~
Protection grade: IP54, IP65 (with rain cover)
Corrosion protection grade: WF1
Example of order
1, if you need to order BHZ51 series explosion-proof switch, rated current is 60A, the pole number is 3, explosion-proof rating is IIC, the order model is: BHZ (IIB)
2, if you need to order BHZ51 series explosion-proof switch, rated current is 25A, the pole number is 3, explosion-proof rating is IIB, with reverse function, the order model is: BHZ (IIB)
