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LW4万能转换开关

更新:2013-9-11 15:58:37      点击:
  • 产品品牌   
  • 产品型号   LW4
  • 产品描述

    LW4万能转换开关,是上海人民电气有限公司 http://www.shamandq.com 为您提供的关于LW4万能转换开关型号,LW4万能转换开关价格,有关LW4万能转换开关的相关资料,上海人民电气...

产品介绍
一、适用范围
 
LW4系列列万能转换开关(以下简称转换开关),适用于交流50或60Hz,电压至500伏,直流至440伏的电路中,作为主令电器,亦可用作电流表及电压表的换相开关及作为小量容电动机启动,调速换向之用。

二、型号及其含义

三、结构特征
1.转换开关按档数分为2,4,6,8,10,12,14,16八种。
2.转换开关按手柄位特征可分为14种形式(见表2)


 
操作方式代号
特征代号
操作手柄位置
自复型
A
-
-
-
-
15°
45°
-
-
-
-
-
B
-
-
-
-
15°
-
-
-
-
-
-





 
G
-
-
-
-
-
45°
-
-
-
-
-
F
-
-
-
90°
45°
45°
90°
135°
-
-
-
X
-
-
-
90°
45°
45°
90°
135°
-
-
-
M
-
-
135°
90°
45°
45°
60°
90°
210°
150°
180°
T
210°
240°
270°
300°
330°
30°
90°
135°
180°
-
-
H
-
-
135°
90°
45°
45°
60°
90°
-
-
-
L
-
-
90°
60°
30°
30°
90°
-
-
-
-
P
-
-
-
90°
45°
45°
-
-
-
-
-
I
-
-
-
-
-
45°
-
-
-
-
-
E
-
-
-
-
90°
90°
-
-
-
-
-
C
-
-
-
-
45°
45°
-
-
-
-
-
R
-
-
-
-
45°
 
45°
-
-
-
-
-

四、主要技术参数
 
1.额定电压:500伏
2.额定电流:20安
3.机械寿命:500,000次。
4.在交流COSφ0.3-0.4或直流时间常数为0.06-0.006秒钟时能接通与分断表1数值100,000次。
 

 
电压(伏)
交流(安)
直流(安)
非电感电流
电感电流
非电感电流
电感电流
单断
双断
单断
双断
单断
双断
四断
单断
双断
四断
24
-
-
-
-
30
50
100
10
20
30
48
-
-
-
-
15
40
80
5
15
25
110
50
150
15
30
3
20
50
0.4
2.5
7
230
40
120
10
20
1.25
3
15
0.3
1.25
3
380
30
60
7
14
-
-
-
-
-
-
440
-
-
-
-
0.3
1.0
2.5
0.10
0.5
1.25
500
20
50
3
10
-
-
-
-
-
-

五、外形尺寸及安装尺寸
 
转换开关中各型号的外形尺寸应符合图1,表3规定:
 

 
型号
LW4-2
LW4-4
LW4-6
LW4-8
LW4-10
LW4-12
LW4-14
LW4-16
长度H(毫米)
80
120
150
200
240
280
320
390


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