CNC Electric - Model YCW3 Series -Air Circuit Breaker
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.
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