AWIS-40 Photovoltaic DC Disconnect Switch
What is a DC disconnect switch?
DC isolation switch, as the name suggests, is a switch that isolates DC. It is mostly used in photovoltaic power station systems to cut off the arc generated by direct current, avoid dangerous accidents and ensure safe operation.
Principle: How does the DC disconnect switch protect the safety of photovoltaic power plants?
(1) When installing the photovoltaic system, if the installer does not cut off the input of the solar panel and the inverter first, the DC power will be connected to the DC side of the inverter when wiring and plugging and unplugging the DC terminal, which will cause personal electric shock and reverse rotation. Damage to the inverter and back-end equipment;
(2) In a photovoltaic power station, the inverter is the "core center". In order to ensure sufficient power generation time, the inverter does not have a start and stop button. As long as there is light (even in rainy weather), the solar panel can generate electricity. The inverter will work automatically. However, this also brings a problem, when the inverter is replaced or repaired, even though the AC side has been disconnected by the installed AC circuit breaker, the DC side is always powered. In this case, if the inverter cannot isolate the DC power from the battery panel, it is easy to cause electric shock and damage to the equipment;
(3) At present, most of the inverters on the market do not have electrical isolation inside, and there is a possibility of backflow from the AC side to the DC side. If the DC power cannot be physically isolated during maintenance, there will be a danger of electric shock.
Photovoltaic DC isolation switch, which can cut off the DC power between the inverter and the solar panel. Through the physical isolation of the AC switch and the DC switch, each section of the photovoltaic power station can be more safely protected.
Product description,
AWIS-40 IP66 Enclosed 1000V 32A DC Disconnect Switch is specially developed for solar installations. Put it between the roof and solar panels and solar inverter. Used to isolate PV arrays during system installation or any maintenance.
Features.
1. Compact, suitable for limited space
2. DIN rail installation, wall-mounted, etc., easy to install
3. Load breaking up to 8 times rated current, ideal for motor isolation
4. Double Broken Silver Rivets - Superior Performance, Reliability and Durability
5. Highly visible optional color handle
6. Padlockable handle to prevent misuse
7. Comprehensive range, 16 to 32A models
8. High IP66 rating
9. High breaking capacity, 12.5mm contact air gap
10. Easy to install and operate
11. Easy to snap on installation of auxiliary switch
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Product Model
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Rated insulation voltage Ui
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Rated heating current Ithe
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Pole
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Rated impulse withstand voltage Uimp
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Rated short-time withstand current(1s) Icw
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Rated short-circuit making capacity Icm
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Working Temperature
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Waterproof grade
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Mechanical Life
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Not less than 10000 times
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WHY CHOOSE US:
Wenzhou Aoying Electric wide range products under our manufacturing covers DC Circuit Breaker, Surge Protector Device, DC MCCB, Fuse, Isolator switch, PV Combiner box, Solar Cable, MC4 Connector, Distribution Box and Switch. All products are in strict accordance with the international Electrotechnical Commission standards and national and industry standsard production. Products have passed CE, CB, SAA, NEMKO, VDE, CCC certificates. Products are widely used in solar power, wind power, metallurgy, electromechanical, railway, ship, port, petrochemical, iron and steel, coal mines, residential areas, shopping malls and other industries of power supply control system.
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