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LW6 Series universal change-over switch / LW39A Series universal change-over switch

LW39A Series universal change-over switch

Purpose
LW39A-16A is a type of universal switch newly developed by our company, with good appearance and convenient wiring. All of its internal
action parts are designed with rolling bearings to ensure soft hand feeling, and long service life. This product is applied to the electrical
circuits of AC 50-60Hz, voltage 690V and below, DC 440V and below as well as high voltage electrical appliance, machine tool equipment and
modern intelligent complete appliance.
Change-over switches used for main circuits switching and direct control conform to GB/T14048.3.
Change-over switches used for master control conform to GB/T14048.5.

Product model and meaning LW39A - □ / □ □ · □

LW39A - □ □ □ / □ Contact system section number
Purpose code: Q-direct starting
Contact system section N-reversible change-over
number S-Two-speed motor speed
Operation chart serial variation
number SN-Two-speed motor speed
Characteristic code variation, reversibility
Switching angle code Rated power of controllable
Specification code three-phase AC motor
(Conventional free air Specification code
heating current) (Conventional free air heating
Universal change-over current)
switch Universal change-over switch
Note：Change-over switches used for directly controlling motors generally adopt 60° rotation.

Technical parameters

Model and Electrical durability Operating frequency
Ui(V) Ith(A) Ue(V) Ie(A) Mechanical life(time)
specification (time) (time/h)
380 2.6
AC-15
4
220 4.6 20×10 300
DC-13 500 16 220 0.27 100×10 4
AC-3 19.5×10 4 合计 300
380 12 4
4 20×10
AC4 0.5×10 120
External dimension and Installation dimension(mm)
1~3（ Thickness of mounting panel）
4-Φ4.5
Φ10
48±0.2
64

48±0.2
64
L=28+12n 32
Dimensions of clients’
Note: L= size of 1 section N denotes contact system plus section number n=1~8 installation and hole-opening

1~3（ Thickness of mounting panel）

After pre-closing
Φ10
Close
After
64 pre-separating 48±0.2
4-Φ4.5
Branch
64 48±0.2
L=40+12n 32
Dimensions of clients’
Note: L= size of 1 section N denotes contact system plus section number n=1~12 installation and hole-opening
P 35