High Quality Air Circuit Breaker 3p & 4p 630A~6300A Fix and Drawer Type Acb

• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: LRA-6300
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: ACB
• Poles Number: 3p, 4p
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB, Short-Circuit Breaking Protection
• Certification: ISO9001-2000, CE, CB, CCC
• Transport Package: Wooden Box
• Trademark: LONGROAD/OEM
• Origin: China
• Package Size: 75.00cm * 50.00cm * 60.00cm
• Package Gross Weight: 45.000kg

Product Description

1. Product Introduction:
With a rated current from 200A to 6300A, and rated operational voltage 415V 690V, 50Hz, the NA8G series air circuit breaker (hereinafter referred to as "breaker") is mainly used in the distribution network to distribute electric energy and protect lines and power equipment from being damaged by overload, under voltage, short circuit, single-phase grounding and other failures.
Having art-oriented appearance, high breaking capacity, zero arcover and vanities of intellectualized protection functions, that breaker can be used for selective protection with accurate action, no unnecessary power cut, and better power supply reliability.
The product allows the wire to enter or enter from the lower port, and the open frame (draw-out) circuit breaker has isolation function.
That breaker can be widely used for power stations, factories, mines and modern tall buildings, especially the distribution system in the intelligent building, and also widely used in green projects such as wind and solar power generation.
This product meets the requirements in IEC/EN 60947-2

2.Operation conditions
2..1 When theambientair temperature is-5C - +40 C, the mean value is no greater than +35C within 24 hours.

Note: Ifthe upper limit is higherthan +40C or lower limit lower than -5C in work, discussions shall be made between the user and the manufacture
2.2 Altitude: not higher than 2000m for the installation site.
2.3 When the ambient air temperature is +40C, the relative humidity of the air shall not be higher than 50%;a higher relative humidity is allowed at a lower temperature; for example, forthe wettest month, the maximum relative humidity averaged shall be 90% while the lowest temperature averaged in that month + 20C , and special measures shall betakenforthecondensation occasionally produced due to temperature change.
2.4 Class of pollution: 3
2.5 The installation category of the breaker' main circuit is IV; when the rated operational voltage of the main circuit is less than or equal to AC400V, The installation category of the control circuit and auxiliary circuit is III, apart from the similarity between the under voltage release coil and the intellectual controller's power transformer primary coil and the breaker;When the rated operational voltage of the major loop is greater than AC400V and less than or equal to AC690V, it is necessary for the control circuit and auxiliary circuit to be isolated from the major loop, and the highest operational voltage of the control circuit and auxiliary circuit is AC400V, the installation category of the control circuit and auxiliary circuit being III.
3. Main technical parameters

Shell grade rated current	Inm A	1600	3200	6300
Rated current In A		200,400,630,800, 1000,1250,1600	1600,2000,2500, 2900,3200	4000,5000	6300
Nominal insulation voltage Ui	V	690	1000	1000
Rated operational voltage Ue	V	415 690	415 690	415
Rated ultimate short circuit breaking capacity leu kA		50 25	100 65	120
Rated service short circuit breaking capacity les kA		40 20	80 65	100
Rated short time withstand current lcw,1s kA		40 20	80 65	100
Number of poles		3P 4P	3P 4P	3P 4P	3P
Frequency of operation (number of times/h)		20	10	10
	Mechanical life	3000	3000	2000
Number of operations	Electrical Life	1000	1000	500
Flashover distance mm		0	0	0
Line incoming pattern		Wire to enter from the upper or lower port	Wire to enter from the upper or lower port	Wire to enter from the upper or lower port
	fixed type kg	22/26.5	52.5/66.5	-
Net weight (3 poles/4 poles)	draw-out type kg	42.5/55	98/121	210/233	233
Size(3 poles/4 poles)	fixed type	320x(254/324)x258	406x(422/537)x329	-
Height x width x depth	draw-out type	351 x(282/352)x352	439x(435/550)x445	439x(835/928)x501	439x928x501