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YE2 series low voltage asynchronous three phase motor is a IEC standard asynchronous motor with IE2 grade high efficiency. It's a fully enclosed structure with iron casting shell. The cooling method is self ventilated IC411, protection grade IP55. It is widely used in general industries like chemical, power plant, machinery, transport, printing, agricultural and so on.

Main Technical Data

 

Frame:	H80~H355
Power Scope:	0.37~375kW
Voltage:	380V, 400V, 415V, 460V, 490V, 660V, 690V
Frequency:	50Hz, 60Hz
Number of Poles:	2P, 4P, 6P, 8P, 10P, 12P
Speed:	3000rpm, 1500rpm, 1000rpm, 750rpm, 600rpm, 500rpm
Cooling Mechod	IC411
Protection Grade	IP55
Insulation Class	F(155℃), H(180℃)
Duty:	S1, S4, S5, S6, S9
Mounting Type	B3/ B5/ B35/ V1/B14
Standard:	IEC
Efficiency Grade:	IE2

 

 

YE2 series (IP55) high-efficiency asynchronous three phase motor (frame number 80~355) (hereinafter referred to as: motor) is a low-voltage fully enclosed self-fan-cooled high-efficiency squirrel cage asynchronous three phase motor that reaches the energy efficiency limit value; Its efficiency value is fully achieved the energy efficiency level 3 requirements in GB18613-2012 "Energy Efficiency Limit Values and Energy Efficiency Levels of Small and Medium-sized Three-phase Different Motors" are consistent with IE2 in the international standard IEC60034-30 "Efficiency Classification of Single-speed three-phase squirrel cage induction motors", and the efficiency is determined by the loss analysis method of measuring input and output power (according to the provisions of 11.3 in GB/T1032-2012).

 

 

Ambient Temperature: -15℃~+40℃

Altitude:≤1000m

Note: When the ambient temperature altitude are different with above regulations, the above conditions can be modified according to GB/T 755 regulations.

Humidity:Average monthly peak relative humidity is 90%.

 

 

Asynchronous three phase motor mounting type is accord with regulations of GB/T 997 Electric Motor Structure AND Mounting Type Code, as below chart:

Note: For IMV1 mounting type, no rain caps for motors of H80~H160 variable frequency motors and with rain caps for H180~H355.

 

 

Bearings are relatively easy-to-wear parts among motor products, and how they are used and maintained is closely related to the life of bearings. Bearings should be regularly maintained and grease should be regularly replaced. If the damaged bearings are not replaced in time, the motor may easily be destroyed. Under the load within the allowable range, the bearing design life of the motor should meet the requirements of H80­H355: 2-pole motor for 20000 hours. 30,000 hours for 4-pole, 6-pole, 8-pole and 10-pole motors (which refers to the life of motor under normal running conditions at 50Hz and under normal maintenance as required).

Asynchronous three phase motors adopt rolling bearing and motors of H80~450 are equipped with deep groove ball bearings or angular contact bearings as per standard. These bearings are sealed or re-lubricated. Motors in H80-132 adopt fully enclosed maintenance-free bearings and motors in H160-450 adopt open & re-lubricated bearings.

 

 

The position of the motor main power terminal box is at the top by default. The box opening is towards the right, and the terminal box can be mounted horizontally by rotating 180°. The terminal box connector is designed as per national standards. According to the motor current and the conditions of usage, the cable should be selected correctly. The diameter of the cable entry of the terminal box should match the diameter of the seal ring.

Numbers and Specifications of Screw Sockets at the Inlet of the Terminal Box

 

 

Y connection is adapted to motors of 3kw or 3kw below. and Δ connection is adapted to motors of 3kw or 3kw above, connection instructions seen as Figure 1

 

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