SLVA switchgear dedicated circuit breaker
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SLVA switchgear dedicated circuit breaker
Product Details
SLVA switchgear dedicated circuit breaker
TKDW2-1600 Air Circuit Breaker (ACB)
TKDW3-H2 Air Circuit Breaker (ACB)
TKDM3E series electronic moulded-case circuit breaker (MCCB)
Overview
The TKDW series intelligent Air Circuit Breaker (ACB) (referred to as Circuit breaker) is a new generation of low-voltage electrical products. The circuit breaker is suitable for AC 50Hz/60Hz, rated insulation voltage (Ui) 1000V, rated voltage (Ue) 800V and below, rated current (In) 6300A and below distribution networks. It has functions such as measurement, diagnosis, analysis measurement, diagnosis, analysis and communication, as well as precise selective protection and power monitoring.
The TKDM3E electronic moulded-case circuit breaker (MCCB) is used in AC 50Hz circuits with a rated insulation voltage of 1000V, rated voltage of 690V or less, and a rated working current of up to 800A. It is used to distribute power and protect lines and power equipment from damage caused by overloads, short circuits, and undervoltage faults. It is used in places where lines are infrequently switched and motors are infrequently started.
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 devices
Standard Working Conditions
● Ambient air temperature: -5℃~+40℃; and the 24h average value does not exceed +35℃
● Installation altitude does not exceed 2000m
● At a maximum temperature of +40℃, the relative humidity of the air does not exceed 50%. At lower temperatures, higher relative humidity is permissible, for example, 90% at 20℃. Special measures should be taken for condensation occasionally caused by temperature changes.
● Pollution degree: Grade 3
● No rain or snow
● No explosive media in the air and no gases or dust that can corrode metal and damage insulation;
● The circuit breaker should be installed and used according to the product's instructions;
● The vertical inclination of the air circuit breaker (ACB) installation does not exceed 5°, and the maximum inclination of the moulded-case circuit breaker installation is 22.5°；
● Transportation and storage conditions: -25℃~+55℃；
● The installation category of the main circuit and primary winding of the power transformer of the air circuit breaker (ACB) is Ⅳ, and the installation category of other auxiliary circuits and control circuits is Ⅲ
● The installation category of the main circuit of the moulded-case circuit breaker (MCCB) is Ⅲ, and the installation category of other auxiliary circuits and control circuits is Ⅱ
Product Structure
1 Arcing chamber, 2 Static contact, 3 Dynamic contact, 4 Current transformer, 5 Intelligent trip unit, 6 Auxiliary contact, 7 Solenoid, 8 Operating mechanism, 9 Handle, 10 Motor
1 Base, 2 Static contact, 3 Silver point, 4 Rotating shaft, 5 Backup protection trip unit, 6 Current transformer, 7 Magnetic flux trip unit, 8 Arcing system, 9 Top cover, 10 Operating mechanism, 11 Intelligent controller
Typical Design Scheme
TKDW Air Circuit Breaker (ACB)
Product Model
Protection Function
Type 3H intelligent controller
| LCD type OLED type applicable to: -45℃~+70°℃ Type 3H basic functions Overload long-delay Short-circuit short-delay Short-circuit instantaneous Voltage measurement Operation count record Communication | ○ Optional functions Current unbalance protection MCR and HSISC Load monitoring Power grid parameter history memory Power measurement Power factor measurement Energy measurement Area interlocking Harmonic measurement Contact wear indication Signal contact input/output |
| Overload long-delay (multiple protection curves selectable) | ||
| IR | IR1=(0.4～1)In +OFF | |
| tR (s) | At 1.5IR | tR = 15～500，OFF |
| Short-circuit short-delay | ||
| Isd | Isd =(1.5~15)In +OFF | |
| t sd (s) | 0.1~1.0 (step size 0.1s) | |
| Instantaneous | ||
| I i | I i =(1.0~20 )I n +OFF | |
| t i | ≤30ms | |
| Ground fault | ||
| I g | I sd =(0.2~1.0 )I n +OFF | |
| t g (s) | 0.1, 0.2, 0.3, 0.4 | |
Parameters and Performance
| Product Model | TKDW2-1600 | TKDW3-20H2 | TKDW3-25H2 | |
| Rated currentIn (A) | 200~1600 | 2000 | 2500 | |
| Rated voltageUe (V) | AC400V | AC400V | AC400V | |
| Rated insulation voltageUi (V) | 1000V | 1000V | 1000V | |
| Rated impulse withstand voltageUimp (kV) | 12 | 12 | 12 | |
| Power frequency withstand voltageU (V) 1min | AC5000V 50Hz | AC5000V 50Hz | AC5000V 50Hz | |
| lcu (kA) | 55 | 100 | 100 | |
| lcs (kA) | 50 | 100 | 100 | |
| lcw(kA /1s) | 50 | 100 | 100 | |
| Total breaking time(ms) | ≤30 | ≤30 | ≤30 | |
| Closing time | ≤70 | ≤70 | ≤70 | |
| Mechanicallife | 10000 | 8000 | 8000 | |
| Mechanical life | Maintenance-free | 10000 | 10000 | 10000 |
| With maintenance | 20000 | 20000 | 20000 | |
Product features
| Zero arcing Improve system operational safety ● V-type arc extinguishing grid ● 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; ● Meets SLVA switchgear standards, Mechanicallife≥10000 times, mechanical life ≥10000 times; ● Silver plating thickness of the stud: ≥4um |
 | Misoperation prevention design ● Main unit "OFF" position lock |
 | Flexible connection methods
Note: ● indicates standard connection method, ○ indicates optional connection method |
Installation dimensions
TKDW2-1600
TKDW3-H2
TKDM3EMoulded-case circuit-breaker (MCCB)
Product selection
Protection function
| Protection function | frame size | Rated current | Current setting value (A) | Operating characteristics/time |
| Overload long time delay | 125 | 32 | lR= 16、20、25、32 | 2IR operating time (s): tR=12/60/100/150(250A and above) |
| 63 | lR= 32、36、40、45、50、55、60、63 | |||
| 125 | lR= 63、65、70、75、80、85、90、95、100、125 | |||
| 250 | 250 | lR=100、125、140、160、180、200、225、250 | ||
| 400 | 400 | lR=200、225、250、280、315、350、400 | ||
| 630 | 630 | lR=400、420、440、460、480、500、530、560、600、630 | ||
| Short-circuit short-delay | 125 | 32, 63, 125 | lsd= (2, 2.5, 3, 4, 5, 6, 7, 8, 10, 12) x IR | When lsd≤l<1.5lsd, inverse time operation: When 1.5lsd tsd=0.06s, tsd=0.2s, tsd=0.3s, |
| 250 | 250 | |||
| 400 | 400 | |||
| 630 | 630 | |||
| Short-circuit instantaneous | 125 | 32, 63, 125 | li=(4、6、7、8、10、11、12、13、14)x lR | Operating characteristics: I≤0.85li, no operation l>1.15li, operation |
| 250 | 250 | |||
| 400 | 400 | li=(4、6、7、8、9、10、11、12、14)x lR | ||
| 630 | 630 | |||
| Overload pre-alarm | Full series | 32~800 | lp= (0.7、0.75、0.8、0.85、0.9、0.95、1) x lR | |
| Ground protection | 125 | 32, 63, 125 | lg= (0.3、0.4、0.5、0.6、07、0.8) x ln | Operating current: between 0.5lg~lg Operating time: 0.4s |
| 250 | 250 | |||
| 400 | 400 | |||
| 630 | 630 |
Parameters and Performance
| TKDM3E-125 | TKDM3E-250 | TKDM3E-400 | TKDM3E-630 | |||||
| Rated currentln (A) | 32, 63, 125 | 250 | 400 | 630 | ||||
| Rated voltageUe (V) | AC400V | AC400V | AC400V | AC400V | ||||
| Rated insulation voltageUi (V) | 1000V | 1000V | 1000V | 1000V | ||||
| Rated impulse withstand voltage Uimp (V) | 8000V | 8000V | 8000V | 8000V | ||||
| Rated short-circuit breaking capacity level | M | H | M | H | M | H | M | H |
| lcu(kA) | 50 | 85 | 50 | 85 | 65 | 100 | 75 | 100 |
| lcs (kA) | 35 | 50 | 35 | 50 | 42 | 65 | 50 | 65 |
| lcw (kA /1s) | 5 | 5 | 5 | 5 | 5 | 5 | 8 | 8 |
| Mechanicallife | 8000 | 8000 | 7500 | 7500 | ||||
| Mechanical life (maintenance-free) | 15000 | 15000 | 15000 | 15000 | ||||
Product features
 | Compact structure, small size, complete internal and external accessories Can be installed vertically or horizontally Overload alarm can be derived without tripping Has isolation function, the corresponding symbol is: With pre-alarm indication, overload indication Adopt modular accessories for quick installation High life, low temperature rise, high breaking capacity, high reliability intelligent trip unit Suitable for humid salt spray, high temperature, low temperature and other special environments Circuit-breaker achieves zero arc after adding zero arc cover |
Appearance and installation dimensions 
frame size | Pole number | Dimensions | Installation dimensions | ||||||||||||
L | L1 | L2 | W | W1 | H | H1 | H2 | H3 | H4 | a | b | j | k | ||
125 | 3P | 150 | 50 | 88 | 92 | 30 | 110 | 29 | 84 | 90 | 94 | 30 | 103 | 129 | 30 |
4P | 122 | ||||||||||||||
250 | 3P | 165 | 64 | 101 | 107 | 35 | 112 | 24 | 85 | 90 | 95 | 35 | 124 | 126 | 35 |
4P | 142 | ||||||||||||||
400 | 3P | 257 | 100 | 172 | 150 | 48 | 151 | 38 | 98 | 107 | 115 | 74 | 202 | 194 | 44 |
4P | 198 | ||||||||||||||
630 | 3P | 280 | 100 | 202 | 210 | 70 | 159 | 45 | 104 | 110 | 120 | 70 | 221 | 243 | 70 |
4P | 280 | ||||||||||||||
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SHANDONG TAIKAI ELECTRIC APPLIANCES CO., LTD.
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