JBHR51 防爆刀熔开关(ⅡB、ⅡC)                                                                                        JBHR51 防爆刀熔开关(ⅡB、ⅡC)
JBHR51 Explosion-proof Type, Knife Fuse Switch (ⅡB、ⅡC)    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、ⅡC；
3. 温度组别：T1~T4；
4. 户内、户外 (IP54)。1. For the dangerous sites with explosive air mixture: 1 pision、2 pision;
2. Flammable gas, steam class：ⅡA、ⅡB、ⅡC;
3. Temperatures classification：T1~T4;
4. Indoor and outdoor(IP54). 1. 铸铝合金外壳，表面喷塑；
2. 适用于电压380V，电流10-400A电气装置和配电系统中作不频繁
切换电路及短路保护用；
3. 内装元件由刀开关和熔断器组合而成，能快速接通与分断；
4. 钢管或电缆布线。1. Diecasted Al-alloy shell with plastic-sprayed surface;
2. Apply to infrequenty change-over circuit and short-circuit protection
for the electrical appliance at 380V and 10-400A and distribution
system;
3. In-built elements are made up of knife switch and fuse It can be quickly
cut on/off;
4. Steelpipe and cable wiring. 额定电压
Rated
voltage (V)额定电流
Rated
current (A)极数
Pole's
number防爆标志
Explosion-
proofing marker
防护等级
Protection
category防腐等级
Corrosion-
proofing grade进线口螺纹/电缆外径（mm）
Intlet's direction/ Cable's
outside diameter38010, 15
20, 30
60, 100
200
4003Exde ⅡBT4
Exde ⅡCT4
Exd ⅡBT4IP54WF1, WF2G3/4/Φ10~Φ15
G1/Φ12~Φ18
G11/4Φ15~Φ22
G2/Φ27~Φ33
G3/Φ43~Φ51