TKDW2 series Air circuit-breaker (ACB)-Taikai Electric Appliance-Dedicated to low-voltage equipment

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TKDW2 series Air circuit-breaker (ACB)

TKDW2 series intelligent Air Circuit Breaker (ACB) (hereinafter referred to as Circuit-breaker) is suitable for AC 50Hz, Rated voltage up to AC800V, rated insulation voltage 1000V, and Rated working current 6300A and below distribution networks, used for power distribution and protecting circuits, power equipment, etc., from hazards such as overload, undervoltage, short circuit, and single-phase grounding faults. The Circuit-breaker can be equipped with various intelligent controllers, offering complete protection functions.

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Air circuit-breaker(ACB)

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TKDW2 series Air circuit-breaker (ACB)

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Product Details

Application Range

The TKDW2 series intelligent Air Circuit Breaker (ACB) (hereinafter referred to as Circuit-breaker) is suitable for AC 50Hz, rated voltage up to AC 800V, rated insulation voltage 1000V, rated working current 6300A and below distribution networks, used for power distribution and protecting 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, providing comprehensive protection functions.

The Circuit-breaker has 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 high-altitude special environments

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: Damp heat, cyclic

GB/T 2423.17 Environmental testing of electrical and electronic products Part 2: Test methods Test Ka: Salt mist

GB/T 2423.18 Environmental testing of electrical and electronic products Part 2: Test methods Test Kb: Salt mist, 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, for example, 90% at 20°C. Special measures should be taken for occasional condensation due to temperature changes;

Pollution degree: Grade 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 for the Circuit-breaker power circuit and primary coil of the power transformer is IV; the installation category for 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;

Circuit-breaker Connection Method	TKDW1 series	TKDW2 series		TKDW3 series
Circuit-breaker Connection Method	TKDW1 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			TKDW2-6300			TKDW2-1600
Rated working current In (A)			4000 5000 6300			200, 400, 630, 800, 1000, 1250, 1600
Rated voltage Ue (V) 50Hz			AC400V	AC690V	AC800V	AC400V
Rated insulation voltage Ui (V)			1000			1000
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
Rated ultimate breaking capacity (rms) Icu (kA)			130	85	65	55
Rated operating breaking capacity (rms) Ics (kA)			100	85	65	50
Rated short-circuit making capacity (peak) Icm (kA)			286	187	143	121
Rated short-circuit withstand current (rms) Icw (kA) 1s			100	85	65	50
Total breaking time (without additional delay) (ms)			≤30			12~18
Closing time (ms)			≤70			≤60
Mechanical Performance	Mechanical life		500			200-800A: 10000 times 1000-1600A: 6500 times
	Mechanical life	Maintenance-free	4000			10000
	Mechanical life	With maintenance	8000			20000
Normal operating conditions	Usage category		B			B
	Pollution degree		Grade 2			Grade 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		4000A-5000A: Offset type 402×800×504	6300A: Offset type 433x928×504	4000A-6300A: Center type 437×895×470	353×279×300
	Drawer-type 4P		402×915×504	433×928×504	437×895x470	353×359×300
	Fixed type 3P		433×813×504	402×915×504	402×882×445	330×297×202
	Fixed type 4P		433×928×504	402×915×504	402×882x445	330×377×202