产品简介Introduction
KDHC系列电焊机开关（以下简称开关）主要用于交流50Hz（或60Hz），额定电压440V及以下的各种电焊机上’调节电流200越乏d 也可作电气设备的主电路、辅助电器的控制和变换之用。
产品符合G B14048.3、JBfT 10498。
The KDHC electric welding machine switch applied to AC 50Hz or 60Hz,440V and below200A and below, for contro/ of vvelltN machine and control of main circuits as well.
技术参数Technical prarameters
| 型号Type | KDHC-20 | KDHC-32 | KDHC-40 | KDHC-63 |
| 额定绝缘电压Ui(V) Rated insulationvoltageUi(V) | 690 | |||
| 额定发热电流Lth(A) Ratedthermalcurrentlth(A) | 20 | 32 | 40 | 63 |
| 额定工作电压Ue(V) Rated operating voltage Ue(V) | 380V | 380V | 380V | 380V |
| 额定工作电流le(A) Rated operating currentle(A) | 20 | 32 | 40 | 63 |
| 机械寿命（次）Mechanical tife | 10x10 | |||
| 用途Application |
NBC -200 -250 -315 -400 -630二氧化碳保护焊机 ForNBC-200, -250, -315, -400, -630CO2typeweldingmachine |
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型号规格 Description |
外形尺寸Dimensions(mm) | 安装尺寸lnstaiiation (mm) | ||||||
| Lmax | lmax | A | E | F | G | G1 | G2 | |
| KDHc-20 | 25+12n | 38 | 囗48+0.31 | 32±0.16 | 囗36+0.31 | φ9.5 | φ3.5 | φ4.5 |
| KDHc-25 | 34+13.3n | 37 | 囗64+0.37 | 36±0.31 | 囗48+0.31 | φ9.5 | φ4.5 | φ4.5 |
| KDHc-32 | 34+13.3n | 37 | 囗64+0.37 | 36±0.31 | 囗48+0.31 | φ9.5 | φ4.5 | φ4.5 |
| KDHc-40 | 34+17.5n | 37 | 囗64+0.37 | 36±0.31 | 囗48+0.31 | φ9.5 | φ4.5 | φ4.5 |
| KDHc-63 | 34+17.5n | 37 | 囗64+0.37 | 36±0.3136 | 囗48+0.31 | φ9.5 | φ4.5 |
φ4.5 |
