CE Approved Low Voltage Breakers 1600A, 2000A, 2500A, 3200A, 4000A, 5000A, 6300A Acb 2500A Air Circuit Breaker

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: DAA
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Overcurrent Protection
• Certification: ISO9001-2000, CE, CB
• Transport Package: Wooden Box
• Specification: 1600A, 2000A, 2500A, 3200A, 4000A, 5000A, 6300A
• Trademark: CDADA, OEM, ODM
• Origin: Shanghai, China
• HS Code: 8536200000
• Production Capacity: 2000PCS/Month

Product Description

DAA series Low Voltage Air circuit breaker air circuit breaker is suitable for the circuit of AC 50Hz/60Hz with rated service voltage 400V, 690V and rated service current up to 6300A.It is mainly used to distribute  electric energy and protect  circuits and electric equipment against  over-load, under-voltage, short-circuit and single-phase  earthing  fault.
With intelligentized  and selective protection functions,  the breaker can improve the reliability of power supply, and avoid unnecessary power failure.The breaker is applicable for power stations,  factories, mines (for 690V) and modern  high- buildings, especially for the distribution  system of intelligentized  building.
 

·Advantages provided for design and manufacture of LV assemblies

>> With high short-circuit breaking capacity,Non ionization distance

380/400V80-120kA
660/690V50-85kA

>> Perfect intelligent protective functions.
The electronic trip unit is a microprocessor based techniques with intelligent protective functions.

>> All modular structure
Modular design for whole series,simple maintenance and adjustment free.

>> Double insulation, safe and reliable
Double insulation from the front face of the circuit breakers, operated safely and reliably.

>> Compact design, Light in weight

>> Complete range of accessories.Common for whole series

>> Compliance with International and national standards.
IEC 947-2
GB14048.2

Technical note The model number of those product is DW 45 used in low-voltage electrical Industry.



· Normal operation conditions

>> The ambient air temperatures DA All not be over +40ºCand below-5ºC and its average over a period of 24h hours does not exceed +35ºC.
Altitude
>> The altitude of the site of installation does not exceed 2000m
>> Atmospheric conditions
Its relative humidity does not exceed 50% at a maximum temperature of +40ºC,Higher relative humidity maybe permitted at lower temperature.The mean maximum value of the most humidity month is 90%,and the mean lowest temperature of this month is+25ºC.Care should be taken
of moderate condensation which may occur on the surface of products due to variations in temperature.

· Normal installation conditions

>> The circuit breakers DAA all be installed in accordance with the manufacturer's instrucions.The vertical inclination of the circuit breakers DA All not exceed 5°

· Installation category

Rated operational voltage	380/400V	660/690V
Installation category
Electric circuit
Main circuit	IV	IV
Coil of under voltage release
Pirmary coil power transformer
Auxiliary circuit	III	III

Degree of protection	Installation method	Accessories
IP30	Normal open mounting
IP40	Mounted in a compartment of cubicle with additional door frame	door frame to be mounted by user
IP54	Mounted in a compartment of cubicle with additional door frame and transparent cover	door frame and transparent cove to be mounted by user

· Pollution degree

 

Type		DAA1-1000	DAA1-2000	DAA2-3200	DAA3-4000	DAA4-6300
Frame rated		1000	2000	3200	4000	6300
current Inm (A)
Number of poles		3,4	3,4	3,4	3,4	3,4
Rated current In (A)		200,400,630,800,1000	400,630,800,1000,1250,1600,2000	2000,2500,3200	4000	5000,6300
Icu (kA)O-CO	400V	42	80	100	100	120
	690V	25	50	65	65	85
Ics (kA)O-CO-CO	400V	30	50	65	65	100
	690V	20	40	50	50	80
Icw(kA)O-CO	400V	20	50	65	65/80(MCR)	85/100(MCR)
	690V	20	40	50	50/65(MCR)	65/75(MCR)
Rated current at N-pole In (A)	50%In, 100%In
Inherent making& breaking time	23-32ms
Operational performance (operations)	Electric life	500
	Mechanical life	9500
Mounting mode		Fixed with drawable
Arcing distance(mm)		0
Intelligent controller		Standard type(M)                    Telecommunication type (H)