LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems

LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems

  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
Summary
The LW28-20 Series Universal Conversion Switch is a high-quality, reliable solution designed for dual power supply switching and precise electrical control in renewable energy systems. With three gears and a robust design, this switch supports AC 50Hz circuits with a rated voltage up to 440V and current up to 160A. Ideal for solar, wind, and energy storage systems, it enables seamless manual switching, ensuring uninterrupted power flow and enhanced system efficiency. Featuring excellent insulation, compact structure, and multiple functions, the LW28-20 switch is a versatile replacement for traditional switches like LW2, LW5, and HZ5. It is widely used in motor control, master control, and circuit conversion applications, meeting international standards such as IEC 60947-3 and GB14048.3. Its durable design and finger-protective structure ensure safe and reliable operation in harsh environments, making it a preferred choice for modern renewable energy installations.More
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • LW28-20 Series Universal Conversion Switch Three Gears Dual Power Supply Switching for Electrical Circuit Control in Renewable Energy Systems
  • The product meets the standards GB14048.3,GB14048.5,and EC60947-3,EC60947-5-1.
  • LW28 series switches have a complete range of specifications, with current ratings of 10A, 20A, 25A, 32A, 63A, 125A, and 160A.
  • LW28 series switches are characterized by small size, multiple functions, compact structure, exquisite material selection, good insulation, flexible switching operation, safety and reliability, and novel appearance and modeling.Four types of switches,LW28-10, LW28-20, LW28-25, and LW28-32F, also have finger protection functions.
  • LW28 series switches are widely applicable and are a new and ideal replacement product, which can replace existing domestic LW2, LW5, LW6, LW8, LWI2, LWI5, HZ5, HZI0, HZI2 and other types of switches as well as transfer switches on imported equipment.
  • LW28 series switch derivatives include padlock switches and lockable switches (63A and below).Which can be used as power cut-off switches for important equipment to prevent misoperation and control the operation of unauthorized personnel.
  • The 20A to 63A switches in the LW28 series can also be equipped with a protective housing (old 65).

Installation conditions

  • The switch is installed under environmental conditions of pollution level 3;
  • Install according to the instructions provided by the factory.

Normal operating conditions

  • The ambient air temperature shall not exceed+40°C, and its average temperature within 24 hours shall not exceed +35°C;
  • The lower limit of ambient air temperature shall not exceed -25°C;
  • The altitude of the installation site shall not exceed 2000m;
  • When the maximum temperature is+40°C, the relative humidity of the air does not exceed 50%, and higher relative humidity can be allowed at lower temperature 90% at 20 °C, Special measures should be taken for occasional condensation due to temperature changes.

Technical Data

ModelLW28-10LW28-20LW28-25LW28-32
Rated insulation voltage UiV660660660660
Agreed heating current IthA10202532
Rated operating voltage UeV2404402411024044024110240440240440
Rated operating current le
AC-21A AC-22AA1010101025253232
AC-23AA7.57.57.57.522223030
AC-2A7.57.57.57.522223030
AC-3A5.55.55.55.515152222
AC-4A1.751.751.751.756.56.51111
AC-15A2.51.52.51.585146
DC-13A120.4200.5
Rated control power P
AC-23AKW1.831.835.5/311/5.57.5/415/7.5
AC-2KW2.53.72.53.75.5117.515
AC-3KW1.52.51.52.24/35.5/35.511/5.5
AC-4KW0.370.550.370.550.55/0.751.52.7/1.55.5/3
ModelLW28-63LW28-125LW28-160LW28-315
Rated insulation voltage UiV660660660660
Agreed heating current IthA63125160315
Rated operating voltage UeV240440240440240440240440
Rated operating current le
AC-21A AC-22AA6363100100150150315315
AC-23AA57579090135135265265
AC-2A57579090135135265265
AC-3A363675759595110110
AC-4A1515303055559595
Rated control power P
AC-23AKW15/1030/18.530/1545/2237/2275/3775/37132/55
AC-2KW18.530304537555595
AC-3KW11/618.5/1115/7.530/1322/1137/18.537/2255/30
AC-4KW5.5/2.47.5/46/312/5.510/415/7.515/7.525/11
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