CHM2-125E,CHM2-125S,CHM2-160S,CHM2-160H,塑料外壳式断路器
CHM2-250S,CHM2-250M,CHM2-250H,CHM2-400S,CHM2-400M,CHM2-400H,
CHM2-630S,CHM2-630M,CHM2-630H,CHM2-800S,CHM2-800M,CHM2-800H,
CHM2-1250H
用途及适用范围
CHM2系列塑料外壳式断路器(以下简称断路器),适用于交流50Hz(60Hz),额定绝缘电压690V,额定工作电压660V及以下,直流250V及以下,额定电流12.5~125A的电路中,用来分配电能,在正常条件下作不频繁的闭合和断开之用,并在线路和设备过载,短路和欠电压时起保护之用.额定壳架等级电流在400及以下的断路器,也可作鼠笼型电动机的不频繁起动,动转中中断以及在电动机过载,短路及欠电压起保护作用断路器符合IEC947-2,GB14048.2,GB14048.4等标准.
断路器的主要技术性能指标
表四
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型号
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额定电流(A)
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极数
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额定绝缘电压(V)
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额定工作电压(V)
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飞弧距离(mm)
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极限短路分断能力(KA)
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运行短路分断能力(KA)
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操作性能(寿命)次
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外形尺寸(mm)
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AC380V(400)
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AC660V(690)
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DC250
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AC380V(400)
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AC660V(690)
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有载
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无载
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L
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W(3P/4P)
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H
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CHM2-125E
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12.5,16,20,25,32,40,50,63,80,100,125
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二、三、四极
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660V
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380V
660V |
≥30
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15
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-
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-
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7.5
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-
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3000
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7000
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120
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76/101
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70
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CHM2-125S
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25
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-
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20
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16
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-
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CHM2-160S
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16,20,25,32,40,50,63,80,100,125,160
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0
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35
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8
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20
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18
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-
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4000
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6000
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120
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90/120
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70
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CHM2-160H
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50
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10
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40
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25
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-
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CHM2-250S
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100,125,160,180,200,225,250
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35
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10
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40
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18
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-
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2000
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6000
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170
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105/140
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103.5
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CHM2-250M
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50
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16
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40
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30
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-
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CHM2-250H
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65
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18
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40
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48
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-
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CHM2-400S
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200,225,250,315,350,400
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35
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16
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40
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18
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-
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1000
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4000
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254
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140/184
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103.5
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CHM2-400M
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50
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20
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40
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30
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-
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CHM2-400H
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65
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25
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40
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48
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-
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CHM2-630S
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400,500,630
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50
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20
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40
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30
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-
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1000
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4000
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268
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210/280
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103.5
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CHM2-630M
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65
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25
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40
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48
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-
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CHM2-630H
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80
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30
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40
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60
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-
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CHM2-800S
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500,630,700,800
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50
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20
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40
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30
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-
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1000
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4000
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268
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210/280
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103.5
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CHM2-800M
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65
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25
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40
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48
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-
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CHM2-800H
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80
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30
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40
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60
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-
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CHM2-1250H
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800,1000,1250
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80
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30
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40
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50
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-
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500
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2500
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407
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210
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138
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