7.5 hp (5.5kW) 3 phase 4 pole AC Induction Motor

$959.52

3 phase AC Induction Motor or asynchronous motor, 4 pole 1440rpm, squirrel-cage type, 7.5 hp (5.5kW) nominal power with 380 Volts @ 50Hz voltage, Totally Enclosed Fan Cooled Enclosure, foot mounting, high-efficiency performance, high starting torque, little vibration and reliable operation.

SKU: ATO-IM-55004P

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Delivery date: 6-12 days

Overview
3-Phase Induction Motor Catalog
Relative Video

7.5 hp (5.5kW) 3-phase 4-pole AC induction motor or asynchronous motor can be widely used in various kinds of general purpose machineries like fans, pumps, compressors, machine tools, transportation and so on. Rugged construction, low maintenance cost and economical price.

7.5hp Induction Motor Specification

Basics	Model	ATO-Y2-132S-4
	Design Standard	IEC
	Weight	60kg
	Frame Type	132S
	Mounting	Horizontal Foot Mounting (B3)
	Wiring Method	Output≤4hp (3kW), Y connection Output≥5.5hp (4kW), Delta connection
	Degree of protection	IP54/IP55
	Insulation Class	Class F
	Cooling	TEFC (compliance to IC 411 code of IEC 60034-6)
Technical Parameters	Nominal Output	7.5hp or 5.5kW
	Pole Number	24-pole
	Nominal Speed	1440rpm
	Frequency	50Hz
	Nominal Voltage	380V
	Nominal Current (full load)	11.7A
	Efficiency	85.7%
	Power Factor( cosφ)	0.83
	Nominal Torque (Tn)	36.50Nm
	Locked Rotor Torque/Nominal Torque (TST/Tn)	2.3
	Maximum Torque/Nominal Torque (Tmax/Tn)	2.3
	Locked Rotor Current/Nominal Current (IST/In)	7.0
	Noise Level	71dB/(A)
Environment	Ambient Temperature	-15℃+40℃
	Altitude	Less than 1000m above sea level

Three-phase Induction Motor Dimensions
Three-phase AC induction motor dimensions

Frame Type	Mounting Dimensions (mm)										Overall Dimensions
Frame Type	A	A/2	B	C	D	E	F	G	H	K	AB	AC	AD	HD	L
132S	216	108	140	89	38	80	10	33	132	12	270	275	210	345	470

Wiring Diagrams (Three-phase squirrel-cage induction motor)

Tips: Induction motor’s working principle
Through the rotating magnetic field generated by a stator and the relative movement of rotor windings, the induced electromotive force generated by rotor winding, as a result of magnetic line cutting, makes the rotor windings to generate induced current. The interaction between the induced current of rotor windings and the magnetic field generates the electromagnetic torque that rotates the rotor. As the rotor speed gradually approaches to the synchronous speed, the induced current gradually decreases and the electromagnetic torque generated reduces accordingly. When the asynchronous motor operates in the motor state, the rotor speed is smaller than the synchronous speed. Therefore, it is also known as asynchronous motor.

3-Phase Induction Motor Catalog.pdf

In this video, ATO takes a 1hp (0.75kW) 220V/380V induction motor as example to explain the motor wiring. ATO first changes the wiring of induction motor from star connection to delta connection. When the induction motor is connected in delta connection, the rated voltage of motor is 220V, and when connected in star connection, the rated voltage is 380V. To demonstrate this change clearly, the induction motor is also connected to ATO 1-phase in 3-phase out VFD and it runs normally under the control of VFD.

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