TKDW3 series Air circuit-breaker (ACB)
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TKDW3 series Air circuit-breaker (ACB)
Product Details
Application Range
The TKDW3 series intelligent Air Circuit Breaker (ACB) (hereinafter referred to as Circuit-breaker) is suitable for AC 50Hz, rated voltage up to AC 1140V, rated insulation voltage up to 1800V, rated working current 7500A and below power distribution networks, used to distribute power and protect circuits and power equipment from damage caused by overloads, undervoltages, short circuits, and single-phase grounding faults. The Circuit-breaker can be equipped with various intelligent controllers, with complete protection functions.
The Circuit-breaker has an isolation function: 
Compliant with "Technical Specifications for Low-Voltage AC Grid-Side Circuit Breakers", suitable for harsh environments such as high temperature, low temperature, salt spray, and humidity, meeting the requirements of photovoltaic and wind power systems.
Standards and Certifications
GB/T 14048.1 Low-voltage switchgear and controlgear Part 1: General rules
GB/T 14048.2 Low-voltage switchgear and controlgear Part 2: Circuit-breakers
GB/T 14048.4 Low-voltage switchgear and controlgear Part 4-1: Contactors and motor starters Electromechanical contactors and motor starters (including motor protectors)
GB/T 20645 Technical requirements for low-voltage electrical appliances for use in special environmental conditions at high altitudes
GB/T 2423.1 Environmental testing of electrical and electronic products Part 2: Test methods Test A: Low temperature
GB/T 2423.2 Environmental testing of electrical and electronic products Part 2: Test methods Test B: High temperature
GB/T 2423.4 Environmental testing of electrical and electronic products Part 2: Test methods Test Db: Cyclic damp heat
GB/T 2423.17 Environmental testing of electrical and electronic products Part 2: Test methods Test Ka: Salt spray
GB/T 2423.18 Environmental testing of electrical and electronic products Part 2: Test methods Test Kb: Salt spray, cyclic
Stand working conditions
Applicable ambient temperature -40°C~+70°C, the average value of 24h does not exceed +35°C;
The altitude of the installation location does not exceed 5000m;
When the highest temperature is +40°C, the relative humidity of the air does not exceed 50%, and higher relative humidity is allowed at lower temperatures, such as 90% at 20°C. Special measures should be taken for occasional condensation due to temperature changes;
Pollution level: Level 3;
The Circuit-breaker is installed in an indoor cabinet with a door frame, and the protection level is IP40;
Usage category: B;
The installation category of the Circuit-breaker and the primary coil of the power transformer is IV; the installation category of other auxiliary circuits and control circuits is III;
The vertical inclination of the installation does not exceed 5°;
Transportation and storage conditions: Not lower than -40°C, not higher than 70°C;
| Zero flying arc Improve system operational safety ● V-shaped arc extinguishing grid ● Staggered arrangement, arc splitting ● Gas-generating insulation sheet, enhanced air blowing ● Pressure-increasing structure design at the outlet |
|
Mistake Prevention Design ● Main unit "trip" position lock |
| Reliability Design ● Special lubricating grease is used in key parts to prevent mechanical failures caused by poor lubrication ● Special processing texture improves electrical contact reliability and effectively controls temperature rise ● Fixed-torque installation process greatly reduces connection failures and reduces daily maintenance workload ● Special contact structure design: Two-stage contact design, the arcing contact bears the breaking current at the moment of "tripping" and "closing", and the main contact bears the current during "closing" operation, effectively protecting the contact system and improving Mechanical life ● Mechanical life: Up to 20000 times Mechanical life: Up to 10000 times |
Flexible Connection Methods
Multiple connection methods improve the installation adaptability of the Circuit-breaker.
| Circuit-breaker Connection Method |
TKDW1 series | TKDW2 series | TKDW3 series | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1600 | 6300 | N2 | H1 | HU1 | H2 | HU2 | H3 | HU3 | ||
| Horizontal connection | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
| Vertical connection | - | ○ | - | ○ | - | - | ○ | ○ | ○ | ○ |
| Forward connection | - | - | - | - | - | - | ○ | ○ | ○ | ○ |
| Horizontal and vertical connection | - | ○ | - | ○ | - | - | ○ | ○ | ○ | ○ |
| Vertical and horizontal connection | - | ○ | - | ○ | - | - | ○ | ○ | ○ | ○ |
| Forward and horizontal connection | - | - | - | - | - | - | ○ | ○ | ○ | ○ |
| Horizontal and forward connection | - | - | - | - | - | - | ○ | ○ | ○ | ○ |
| Vertical and forward connection | - | - | - | - | - | - | ○ | ○ | ○ | ○ |
| Forward and vertical connection | - | - | - | - | - | - | ○ | ○ | ○ | ○ |
| Note: ● indicates standard connection method, ○ indicates optional connection method, - indicates no such connection method | ||||||||||
| Model | TKDW3-02N2~16N2 | TKDW3-06H1~25H1 | TKDW3-06HU1~25HU1 | |||||
|---|---|---|---|---|---|---|---|---|
| Rated working currentIn（A） | 200、400、630、800、1000、1250、1600 | 630、800、1000、1250、1600、2000、2500 | ||||||
| Rated voltageUe（V）50Hz | AC400V |
AC500V AC550V |
AC400V | AC690V | AC800V | AC1140V | ||
| Rated insulation voltage Ui（V） | 1000 | 1000 | 1500 | |||||
| Rated impulse withstand voltage Uimp（kV） | 12 | 12 | ||||||
| Power frequency withstand voltage U（V）1min | AC5000V 50Hz | AC5000V 50Hz | ||||||
| Pole number | 3P/4P | 3P/4P | ||||||
| Segment capacity code | N2 | H1 | HU1 | |||||
| Rated ultimate breaking capacity（rms）Icu（kA） | 65 | 50 | 85 | 75 | 70 | 60 | ||
| Rated operating breaking capacity（rms）Ics（kA） | 55 | 50 | 85 | 75 | 70 | 60 | ||
| Rated short-circuit making capacity（peak）Icm（kA） | 143 | 105 | 187 | 165 | 154 | 132 | ||
| Rated short-circuit withstand current（rms）Icw（kA）1s | 55 | 42 | 85 | 75 | 70 | 60 | ||
| Full break time (without additional delay) (ms) | 12~18 | 12~18 | ||||||
| Closing time (ms) | ≤60 | ≤60 | ||||||
| Mechanical properties | Mechanical life | 200-800A: 10000次 1000-1600A: 6500次 |
≤2000A: 8000次 2500A: 6500次 |
<2000A:3000次 2500A:2000次 |
||||
| Mechanical life | Maintenance-free | 10000 | 10000 | |||||
| With maintenance | 20000 | 20000 | ||||||
| Normal operating conditions | Application category | B | B | |||||
| Pollution level | Level 3 | Level 3 | ||||||
| Protection level | IP40 | IP40 | ||||||
| Ambient temperature | No less than -40℃ | No less than -40℃ | ||||||
| Altitude | ≤5000m | ≤5000m | ||||||
| Dimensions (mm) (H×W×D) | Drawer type 3P | 353×279×300 | 430×407×395 | |||||
| Drawer type 4P | 353×359×300 | 430×522×395 | ||||||
| Fixed type 3P | 330×297×202 | 393×422×290 | ||||||
| Fixed type 4P | 330×377×202 | 393×537×290 | ||||||
| Model | TKDW3-10H2~40H2 | TKDW3-10HU2~40HU2 | TKDW3-40H3~75H3 | TKDW3-40HU3~75HU3 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated working currentIn（A） | 1000、1250、1600、2000、2500、2900、3200、3600、4000 | 4000、5000、6300、7500 | |||||||||
| Rated voltageUe（V）50Hz | AC400V | AC690V | AC800V | AC1140V | AC400V | AC690V | AC800V | AC1000V | AC1140V | ||
| Rated insulation voltage Ui（V） | 1500 | 1800 | |||||||||
| Rated impulse withstand voltage Uimp（kV） | 12 | 18 | |||||||||
| Power frequency withstand voltage U（V）1min | AC5000V 50Hz/60Hz | AC5000V 50Hz/60Hz | |||||||||
| Pole number | 3P/4P | 3P/4P | |||||||||
| Rated ultimate breaking capacity（rms）Icu（kA） | 100 | 85 | 75 | 65 | 135 | 120 | 85 | 85 | 85 | ||
| Rated operating breaking capacity（rms）Ics（kA） | 100 | 85 | 75 | 65 | 135 | 120 | 85 | 85 | 85 | ||
| Rated short-circuit making capacity（peak）Icm（kA） | 220 | 187 | 165 | 143 | 297 | 264 | 187 | 187 | 187 | ||
| Rated short-circuit withstand current（rms）Icw（kA）1s | 100 | 85 | 75 | 65 | 135 | 120 | 85 | 85 | 85 | ||
| Full break time (without additional delay) (ms) | 12~18 | 12~18 | |||||||||
| Closing time (ms) | ≤60 | ≤60 | |||||||||
| Mechanical properties | Mechanical life | 1000-2500A:10000次 2900-3600A: 5000次 4000A: 3000次 |
1000-2500A: 3000次 2900-3600A:1500次 4000A:500次 |
4000A:6000次 5000A:4000次 6300-7500A: 2000次 |
4000A:3500次 5000A:2500次 6300-7500A: 1500次 |
4000A:2500次 5000A:1500次 6300-7500A: 1000次 |
|||||
| Mechanical life | Maintenance-free | 10000 | 10000 | ||||||||
| With maintenance | 20000 | 20000 | |||||||||
| Normal operating conditions | Application category | B | B | ||||||||
| Pollution level | Level 3 | Level 3 | |||||||||
| Protection level | IP40 | IP40 | |||||||||
| Ambient temperature | No less than -40℃ | No less than -40℃ | |||||||||
| Altitude | ≤5000m | ≤5000m | |||||||||
| Dimensions (mm) (H×W×D) | Drawer type 3P | 353×279×300 | 430×785×395 | ||||||||
| Drawer type 4P | 353×359×300 | 430×900×395 | |||||||||
| Fixed type 3P | 330×297×202 | 390×800×290 | |||||||||
| Fixed type 4P | 330×377×202 | 390×915×290 | |||||||||
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