YCW3 AIR CIRCUIT BREAKER

SHORT DESCRIPTION:
General
YCW3 series air circuit breaker(hereinafter called ACB) is suitable for the circuit of AC 50Hz/60Hz with rated service voltage 400V, 690V and rated service current between 200A and 6300A. It is mainly used to distribute electric energy and protect circuits and electric equipment against over-load, under-voltage, short-circuit and singlephase earthing fault. With intelligent 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. Standard: IEC/EN 60947-2.

Type designation

1. Rated current in scope of frame size
1600 Type In: 200A,400A,630A,800A,1000A,1250A,1600A
2000 Type In: 630A,800A,1000A,1250A,1600A,2000A
3200 Type In: 2000A,2500A,3200A
4000 Type In: 2500A,3200A,4000A
6300 Type In: 4000A,5000A,6300A
2. Number of poles
3-default
4-4 pole
3. Installation
Fixed type-horizontal, vertical
Drawout type-horizontal, vertical
4. Intelligent controller
M type
2M type: digital display, over-current protection (overload, short delay, instantaneous), 4P or 3P+N have earthing protection. 3M type: LCD display, over-current protection(overload, short delay,
instantaneous), 4P or 3P+N have earthing protection.
H type
2H type: communication function, digital display, over-current protection
(overload, short delay, instantaneous), 4P or 3P+N have earthing protection.
3H type: communication function, LCD display, over-current protection (overload,
short delay, instantaneous), 4P or 3P+N have earthing protection.
5. Common use accessory
Shunt release-AC220V/230V,AC380V/400V,DC220V,DC110V
Undervoltage release-AC220V/230V,AC380V/400V, it is classified to instantaneous type and time-delay type.
Closing electromagnet-AC220V/230V,AC380V/400V,DC220V,DC110V
Motor-driven energy-storage mechanism-AC220V/230V,AC380V/400V,DC220V,DC110V
Auxiliary contact-4a4b,2a6b,3a3b
Note: a-normal open, b-normal close
6.Optional accessory
Mechanical interlock;
One circuit breaker (1lock+1key)
Two circuit breaker(steel cable interlock, connecting rod interlock,2lock+1key)
Three circuit breaker(3lock+2keys, connecting rod interlock)
Automatic power transfer system
Current transformer connected with neutral lead