Type
|
ACB
|
Certification
|
ISO9001-2000, CE, CCC
|
Current
|
630~6300A |
Transport Package
|
1PC/Carton
|
HS Code
|
8536300000
|
Function
|
Conventional Circuit Breaker, RCCB
|

Application
HGW45 series universal circuit breaker(hereinafter referred to as breaker)is suitable for the circuit of AC 50Hz/60Hz with rated voltage 400V, 690V and rated current up to 6300A. It is mainly used to distribute electric energy and protect circuits and power-supply equipment from overload, under-voltage, short-circuit and single-phase earthing. 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. This breaker conforms to IEC60947-2 and GB14048.2. The whole series have past CCC certification.
Features
1. Rated AC current: 630A-6300A
2. Short-circuit breaking capacity: 80KA-120KA
3. Rated Voltage: under AC690V
4. Two Types: fixed type and draw-out type
5. Number of poles: 3 pole and 4 pole
6. Operation types: manual operation, auto operation
7. Trip types: Intelligent controller, under voltage instant (or time delay type) trip and shunt trip
8. Intelligent controller categories: L type(basic type), M type(Standard type), and H type (communication type)
Structure Characteristics
1. The fixed type is installed within a special drawer to become a draw-out type breaker. Our circuit breaker consists of a contact system and arc-extinguishing system, operating mechanism, current transformer, intelligent controller and auxiliary switches, secondary plug and socket, under voltage and shunt releases. The draw-out type has a holder that is made up of right and left side plates, base, beams, etc.
2. Contact system
It adopts integrated contact system, including the main contact and arc contact. The contact is made of high quality material, which does not lead to high temperatures even when it is breaking short circuit current. The contact system is of parallel connection, which reduces the electrical-dynamic repulsion force and improves electric steadiness. The distance between the moving and static contact is much greater than 18mm as it is required.
Note: “Trip” lock device for breaker is optional, the isolating switch is a necessary.
3. Arc-extinguishing chamber
Each pole has an arc-extinguishing chamber, which works to separate and isolate each electrode. The arc extinguishing chamber is enclosed within the insulating base of the intelligent air circuit breaker, which enforces the mechanical strength of arc extinguishing chamber wall and avoids breakage when it is breaking a large short circuit current.
4. Operating mechanism: manual and automatic mechanism
The operating mechanism is located at the front of the intelligent air circuit breaker. It adopts a five-link, trip free structure. It is available with energy storage. The breaker can be closed instantly. The stored energy can be released by a hand-operated button or closing electromagnet. The motor driven mechanism is integrated: consists of an energy storage shaft and main shaft which are connected with concave and convex parts. It is easy to assemble or disassemble.
5. Intelligent controller
6. Drawer holder
The drawer holder Consists of right and left guide rail side plates, base and cross arm. A boosting device and an indicator are fitted to the base. A static contact auxiliary circuit is installed at the top of the drawer holder. The bridge typemain circuit contacts are safety separated by a plate at the front.
7. Three positions of the breaker in the drawer
–\”ON” position: Both the main circuit and the auxiliary circuit are connected. The separation plate is open.
–\”Test” position: the main circuit is disconnected. The separation plate is closed. Only the auxiliary circuit is connected. Tests can be made in this mode.
–\”OFF” position: both the main and the auxiliary circuits are disconnected. The safe separation plate is closed.
