page_banner

Products

LW31-Rotary Switch

Short Description:

LW31 series

Ampere: 20A, 25A, 32A, 50A, 75A,100A

Voltage: 110-690VAC

Features: CE CCC ISO9001 certification

300,000 times life span

Operate frequency: 120 times per hour


Product Detail

Product Tags

Structural features of rotary switch

Common band switches and shift switches of multimeters are rotary switches, and there are two structures: one is BBM (Break Before Make) contact type, which is characterized in that the moving contact first disconnects the front contact when changing positions After connecting the rear contact, there is a state of disconnection with the front and rear contacts: the other is the MBB (Make Before Break) contact type, which is characterized by a state where the moving contact is in contact with both the front and rear contacts when changing positions. . Then disconnect the front contact and keep in contact with the rear contact. In the circuit design, the appropriate rotary switch should be selected according to the purpose of the circuit and the safety of the circuit.

LW31 series

Ampere: 20A, 25A, 32A, 50A, 75A,100A
Voltage: 110-690VAC
Features: CE CCC ISO9001 certification
300,000 times life span
Operate frequency: 120 times per hour

Introduction

LW31 series rotary switches applied to switchgear and control of electric motors as well as to change over of electric circuits,it’s a good substitution for other cam switches. 

Technical parameters

Description LW31-20 LW31-25 LW31-32 LW31-50 LW31-75
Rated thermal current ITH A 20 25 32 50 75
Rated working voltage Ue V 110 220 440 110 220 440 500 690 110 220 440 500 690 110 220 440 500 690 110 220 440 500 690
Rated working current Le                                            
AC-21A A     20         25         32         50         70
AC-22A A     16         20         32         40         63
DC-20 A 20   25         32         50         75      
power P                                              
AC-23A KW   5 7.5   7.5 11   15   11 18.5   22   15 22   30   18.5 30   37
AC-3 KW   4 5.5   5.5 7.5   11   7.5 15   18.5   11 18.5   22   15 22   30
AC-4 KW   2.2 3   2.2 4 4     3 5.5 5.5     5.5 7.5 9     7.5 11 15  
DC-23 KW 0.77 1.2   2 2.2       2 2.2       3 6       4 8      

Mechaical life

Mechanical life without load:0.3×106 times,operation frequency is 120 times/h.
Mechanical life with load:0.6×104 times operation frequency is 120 times/h. 

Dimensions and installation

1
Description Dimensions(mm) Installation(mm)
A C H L E D1 D2 S F G D3 T
LW31-20 54 Φ44 38 25+12n 32 Φ9.5 Φ3.2 1.5 35 Φ45 Φ4.5 6
LW31-20 72 Φ44 38 25+12n 32 Φ9.5 Φ3.2 1.5 58 Φ45 Φ4.5 6
LW31-25 72 Φ59 36 25+13n 33 Φ9.5 Φ3.2 1.5 58 Φ64 Φ4.5 6
LW31-25 105 Φ59 53 23+13n 33 Φ9.5 Φ3.2 1.5 85 Φ64 Φ4.5 6
LW31-32 72 Φ59 36 23+18n 33 Φ9.5 Φ3.2 1.5 58 Φ64 Φ4.5 6
LW31-32 105 Φ59 53 23+18n 33 Φ9.5 Φ3.2 1.5 85 Φ64 Φ4.5 6
LW31-50 105 Φ80 53 34+18n 46 Φ13 Φ5.3 3 85 Φ90 Φ5.5 8
LW31-75 105 Φ80 53 34+27n 46 Φ13 Φ5.3 3 85 Φ90 Φ5.  
LW-31D (1)
LW-31D (2)
LW-31D (3)
LW-31D (4)
LW-31D (5)
LW-31D (6)
LW-31D (7)
LW-31D (8)
LW-31D (9)
LW-31D (10)
LW-31D (11)
LW-31D (12)

  • Previous:
  • Next:

  • Write your message here and send it to us