TKDW1 series Air circuit-breaker (ACB)-Taikai Electric Appliance-Dedicated to low-voltage equipment

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TKDW1 series Air circuit-breaker (ACB)

The TKDW1 series intelligent Air Circuit Breaker (ACB) (hereinafter referred to as Circuit-breaker) is suitable for AC 50Hz distribution networks with a rated voltage up to AC690V, rated insulation voltage of 1000V, and rated working current of 4000A or less. It is 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 a variety of intelligent controllers, providing comprehensive protection functions.

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Air circuit-breaker(ACB)

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TKDW1 series Air circuit-breaker (ACB)

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Product Details

Application Range

The TKDW1 series intelligent Air Circuit Breaker (ACB) (hereinafter referred to as Circuit-breaker) is suitable for AC 50Hz, rated voltage up to AC690V, rated insulation voltage 1000V, rated working current 4000A and below power distribution networks. It is 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, providing comprehensive protection functions.

The Circuit-breaker has an isolation function:

Compliant with the "Technical Specifications for Low-Voltage AC Grid-Connected 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 Electrical and electronic products Environmental testing Part 2: Test methods Test A: Low temperature

GB/T 2423.2 Electrical and electronic products Environmental testing Part 2: Test methods Test B: High temperature

GB/T 2423.4 Electrical and electronic products Environmental testing Part 2: Test methods Test Db: Damp heat, cyclic

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

GB/T 2423.18 Electrical and electronic products Environmental testing Part 2: Test methods Test Kb: Salt mist, cyclic

Stand working conditions

Applicable ambient temperature -40°C~+70°C, the 24h average value 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%. At lower temperatures, higher relative humidity is allowed, 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 a cabinet and equipped with a door frame, with a protection level of IP40;

Usage category: B;

The installation category of the Circuit-breaker main circuit 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;

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			TKDW1-2000			TKDW1-3200		TKDW1-4000
Rated working current In（A）			200 400 600 800 1000 1250 1600 2000			2000 2500 2900 3200		3200 3600 4000
Rated voltage Ue（V）50Hz			AC400V	AC550V	AC690V	AC400V	AC690V	AC400V
Rated insulation voltage Ui（V）			1000			1000		1000
Rated impulse withstand voltage Uimp（kV）			12			12		12
Power frequency withstand voltage U（V）1min			AC5000V 50Hz			AC5000V 50Hz		AC5000V 50Hz
Pole number			3P/4P			3P/4P		3P/4P
Rated ultimate breaking capacity（RMS）Icu（kA）			80	65	65	100	75	100
Rated operating breaking capacity（RMS）Ics（kA）			65	65	65	80	75	80
Rated short-circuit making capacity（peak）Icm（kA）			176	143	143	220	165	220
Rated short-circuit withstand current（RMS）Icw（kA）1s			65	65	65	80	75	80
Total breaking time (without additional delay) (ms)			≤30			≤30		≤30
Closing time (ms)			≤70			≤70		≤70
Mechanical Properties	Mechanical life		6500		3000	3000	1500	1500
	Mechanical life	Maintenance-free	15000			15000		10000
	Mechanical life	With maintenance	30000			30000		20000
Normal operating conditions	Usage category		B			B		B
	Pollution degree		Grade 3			Grade 3		Grade 3
	Protection level		IP40			IP40		IP40
	Ambient temperature		Not lower than -40℃			Not lower than -40℃		Not lower than -40℃
	Altitude		≤5000m			≤5000m		≤5000m
Dimensions (mm) (H×W×D)	Drawer type 3P		433×375×452			433×435×470		433×550×487	-
	Drawer-type 4P		433×470×452			433×550×470		-	433×788×504
	Fixed-type 3P		402×362×360			402×422×368		402×537×368	-
	Fixed-type 4P		402×457×360			402×537×368		-	402×772×360