BZX51-6防爆行程开关(ⅡB)
BZX51-6 Explosion-Proof, Travelling Switch (ⅡB)
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一、适用范围
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1. 爆炸性气体环境危险场所：1区、2区；
2. 可燃性气体、蒸气级别：ⅡA、ⅡB；
3. 温度组别：T1~T4；
4. 户内、户外（IP54）。
1. For the dangerous sites with explosive air mixture:
1 division、2 division;
2. Flammable gas, steam class：ⅡA、ⅡB;
3. Temperatures classification：T1~T4;
4. Indoor and outdoor(IP54).
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二、型号含义
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1. Diecasted Al-alloy shell with plastic-sprayed surface;
2. Steelpipe and cable wiring.
1.铸铝合金外壳，表面喷塑；
2.钢管或电缆布线。
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三、技术参数
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型号
Model
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动作行程或角度
Movement travel or angle
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超行程
Over stroke
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触头数量
Contact's number
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额定电压
Rated voltage (V)
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额定电流
Rated current (A)
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BZX51-5Z
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10~12mm
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3~5mm
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1NC+1NO
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380
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5
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BZX51-5D
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12°
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3°
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BZX51-5S
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12°
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3°
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防护等级
Protection category
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防爆标志
Explosion-proofing marker
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防腐等级
Corrosion-proofing grade
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进线口螺纹
Inlet's thread
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电缆外径(mm)
Cable's outside diameter
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Ex dⅡBT4
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W, WF1, WF2
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G3/4
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Φ10~Φ15
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