Air Conditioner Fan Motor YDK550-6E

This YDK550-6E single-phase capacitor-operated asynchronous motor is specially designed as the drive fan motor for commercial air conditioning equipment. It operates on 220V 50Hz single-phase alternating current with a rated power of 550W and a rated speed of 830 RPM. Adopting Class F insulation and a finned aluminum alloy heat sink shell, it supports stable long-term continuous working. Equipped with fixed mounting supports and color-coded lead wires, it features convenient installation and wiring, widely applied to air handling units, large indoor air conditioning blowers and ventilation fan systems.

Electrical & Mechanical Specifications

Model: YDK550-6E	YDK series single-phase capacitor fan motor; 550 = rated power 550W; 6 = 6 poles; E = design version
220V ~ 550W	Rated Voltage: AC 220V; Rated Output Power: 550 Watts
50Hz	Applicable Power Frequency: 50 Hertz
6P	6 poles, determines base synchronous speed
F Class (CL)	Insulation Class: F-level insulation, maximum allowable winding temperature rise per standard
Rated Current 4.5A	Normal operating rated current: 4.5 Amperes
LRA: 6.0A	Locked Rotor Amperage: 6.0A (current when rotor is stalled on startup)
830r/min	Rated Rotational Speed: 830 revolutions per minute
ROT Arrow	Rotation Direction: Follow the marked arrow for correct spinning direction

Wiring Definition (Color Code Terminal Function)

• RED (RED): Main winding power input (main coil terminal)
• BLACK (BLACK): Common public terminal (COM / C)
• WHITE (WHITE): Auxiliary winding terminal, connects with capacitor between Black & White
• BLUE (BLUE): Extra speed control tap / secondary connection terminal

Product Application

This is a heavy-duty single-phase asynchronous fan motor, mainly used for:

• Central air conditioning indoor unit large circulating fans
• Air handler unit (AHU) blower fans
• Commercial cabinet air conditioner, fresh air unit fan drive
• Industrial ventilation & air conditioning evaporator/condenser fan systems

Structural Feature

• Integrated cast aluminum finned heat dissipation housing for excellent thermal dissipation during long-hour continuous operation
• Extended high-strength output shaft, reserved mounting structure for fan impeller fixing
• Pre-assembled fixed mounting brackets for direct equipment installation
• Thickened insulated multi-core cable leads with terminal connectors for easy wiring connection to control circuit and run capacitor