TKDW3-SU3 series Air circuit-breaker (ACB)
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TKDW3-SU3 series Air circuit-breaker (ACB)
Product Details
Product Introduction
The TKDW-SU3 series intelligent Air Circuit Breaker (ACB) (hereinafter referred to as Circuit-breaker) is a new generation of products that combines our company's rich R&D experience in Circuit-breakers, mature power distribution technology, and user-friendly design. It is used to distribute electrical energy and protect circuits and power equipment from damage caused by overloads, short circuits, grounding, and current imbalances. It features precise protection and comprehensive functions. Communication-type Circuit-breakers have communication interfaces that can connect to fieldbuses to realize "four remote" functions and meet the needs of automated networking. Suitable for AC 50Hz/60Hz, Rated voltage 1140V and below, Rated working current 3200～5000A power grids.
Compliant with the "Technical Specifications for AC Grid-Side Low-Voltage Circuit-breakers", suitable for harsh environments such as high and low temperatures, salt spray, and humidity, meeting the requirements of photovoltaic and wind power systems.
Standards Compliance
GB/T 14048.1 Low-voltage switchgear and controlgear General rules
GB/T 14048.2 Low-voltage switchgear and controlgear Circuit-breakers
GB/T 14048.4 Low-voltage switchgear and controlgear Electromechanical contactors and motor starters
GB/T 14048.5 Low-voltage switchgear and controlgear Electromechanical control circuit electric appliances
Standard Working Conditions
Ambient air temperature: -40°C~+70°C; and the 24h average value does not exceed +35°C;
Installation altitude does not exceed 5000m;
Passed plateau, salt spray, humid heat, high and low temperature tests;
At a maximum temperature of +40°C, the relative humidity of the air does not exceed 50%; at lower temperatures, higher relative humidity is allowed, for example, 90% at 20°C;
Special measures should be taken for condensation occasionally caused by temperature changes;
Pollution degree: Grade 3;
Usage category: B;
The vertical inclination of the Air circuit-breaker (ACB) does not exceed 5°;
Transportation and storage conditions: -40°C~+70°C;
Product Model
Product Parameters
| Main Technical Parameters | |||
|---|---|---|---|
| Product Specifications and Models | TKDW3-□SU3 | Rated ultimate breaking capacity Icu | 85kA |
| Rated working current In | 3200A、3600A、4000A、4500A、5000A | Rated operating breaking capacity Ics | 85kA |
| Rated voltage Un | AC800V、AC1000V、AC1140V | Rated short-time withstand current Icw | 85kA 1s |
| Pole number | 3P、3P+N | Auxiliary contacts | Standard 6 normally open, 6 normally closed |
| Rated insulation voltage Ui | AC1800V | Arcing distance | 0mm |
| Rated impulse withstand voltage Uimp | AC18kV | Mounting Method | Fixed/Drawout |
| Zero arcing Improve system operational safety ● V-type arc extinguishing grids ● Staggered arrangement, arc splitting ● Gas-generating insulation sheet, enhanced air blowing ● Outlet pressure boosting structure design |
| Reliability Design ● Two-stage contact design, high breaking capacity, low temperature rise; ● Mechanical life ≥10000 times, ● Mechanical life ≥10000 times; ● Silver plating thickness of studs:>4um. |
| Misoperation Prevention Design ● A wide range of locking mechanisms are available to completely prevent misoperation; ● Main unit "OFF" position lock; ● Drawout unit "three-position" status lock; ● Switch push-button locking device; ● Door interlock; ● Mechanical interlock; ● Drawout unit limit switch unlocking device. |
Flexible Connection Methods
Multiple connection methods improve the adaptability of Circuit-breaker installation.
| Circuit-breaker Connection Methods | TKDW3-□SU3 |
|---|---|
| Horizontal connection | ● |
| Vertical connection | ○ |
| Note: ● indicates standard connection method, ○ indicates optional connection method, - indicates no such connection method | |
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