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产品简介 Introduction  

SZW25、T-16EXF64D正逆变速速开关(以下简称万能转换开关)主要用于交流50HZ额定电压380V及以下,直流电压220V及以下的主电路。额定电流至25A的机床爪控制线路中,实现各种线路的控制和换接。作主电路转换用和直接控制电动机时符合和作主令控制用时符合标准GB14048.5-2001.
  The SZW25.  T-16EXF64D positive and negative Mechanics universal change-over switch (named as universal change-overswitch hereinafter)is mainly applied to the main circuit of AC50Hz. rated volt being 380v or below.  DC volt being 220V orbelow in addition to machine tool'control line of rated current being 25A or below for realizing control and switching of every line.
  Conforming with GB14048.5-2001 standard when used for master control. main circuit' switching. directly controlling
motor.
芷常工作条件normal work cond…on
1、周围空气温度上限为+400C下限为- 250C,24小时平均温度不超过+350C;
2、海拔高度不超过2000m:
3、空气相对湿度在周围温度+400C时,应不超过50%,在较低温度下允许有较高相对湿度,最湿月的月平均最低度不超过+25℃时,月平均最大相对温度不超过90%:
4、污染等级3级;安装类别川类。
4、the surrounding air temperature ranges from-250C to+400C. moreover.  its average temperature within 24 hours should bebelow +350C;:the altitude of installation place should be below 2000m;
  provided the highest temperature is+400C ,  the comparative humidity of air can'  t exceed 50% :  the temperature lower,thecomparative humidity higher,  while,  the monthly average lowest temperature in moistest month can't exceed+250C ,and themonthly average largest comparative humidity can't exceed 90%;pollution rank is 3 grade,  installation category is lIl type.
按术参数Technical prarameters

 

 lth

A

Ui

v

 Ue

v

 AC-21A  AC-22A  AC-23A  AC-2    AC-3   AC-4  AC-15  DC-13          
  型号        440   le(A)  Ie(A)  le(A)  P(kW)  le(A)  P(kW)  le(A)  P(kW) le(A)   P(kW)  le(A)  le(A)  
       240  440    20  20  15  7.5  15  7.5  11  5.5  3.5  4    
   25  660  1 20  240                      5  1  
 SZW25-25      440  120                      
       440   25  25  22  11  22  11  15  7.5  6.5  3  5