Low-Voltage Three-Phase Induction Motors
There is an accelerating trend among major countries to adopt high-efficiency standards (legal regulations and policies) for motors (3-phase induction motors) in order to conserve the global environment and prevent global warming.
Japan has also mandated a "Top Runner System," which came into effect on April 1, 2015 after the amendment and notification* of the "Act on the Rational Use of Energy (Energy Conservation Act)."
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IEC60034-30
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JIS C 4034-30
(Efficiency classes of single-speed, three-phase, squirrel-cage induction motors)
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High-efficiency
Top-runner standard value compliant!
*Efficiency class compliant with JIS C 4034-30:2011 -
Energy saving
Running cost greatly decreased! -
Outdoor Type
Global standard protection rating : IP55! -
Long service life*1
Longer service life for insulation system -
Easy replacement*1
Same frame size and connecting dimensions as standard motors! -
Low noise*1
Average noise reduction of 5 dB (A)! -
Inverter driving*2
Constant torque operation possible at 0.5 to 60 Hz (1:120)! -
Improvement on work efficiency
The terminal box is now mounted on the upper part!
Easy to change the cable drawing direction! -
Easy maintenance and inspection
Adoption of a grease lubrication method!
No need to replace bearings!
*Frame size of 250S or larger
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Note
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*1is based on comparison with our previous products
*2at4P, output 45 kW or less
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Note *2
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at4P, output 45 kW or less
Indoor type
| Standard efficiency | Premium efficiency | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Housing structure | Totally-enclosed fan-cooled type | Totally-enclosed fan-cooled type | |||||||||||
| Type | Steel frame | MLH | MLK | ||||||||||
| Cast iron frame | ー | MLU | |||||||||||
| Output | 0.2 to 0.4 kW | 0.75 to 375kW | |||||||||||
| Frame size | 63Ｍ to 80M | 80Ｍ to 355K | |||||||||||
| *1 Rated voltage and rated frequency |
|
|
|||||||||||
| Time rating | S1 (continuous) | S1 (continuous) | |||||||||||
| Protection rating | IP44 | IP55 | |||||||||||
| *2 Starting method | Direct-on-line starting | 3.7 kW or smaller: Direct-on-line starting 5.5 to 55 kW:  -△ starting75 kW or larger: Direct-on-line starting |
|||||||||||
| *3 Thermal class | 120 (E) | 155 (F) | |||||||||||
| Direction of rotation | CCＷ (counterclockwise as seen from load side) | CCＷ (counterclockwise as seen from load side) | |||||||||||
| Ambient conditions | Temperature | -20°C to +40°C | －30°C to *4＋40°C | ||||||||||
| Humidity | 100%RH max. (no condensation) | 100%RH max. (no condensation) | |||||||||||
| Altitude | 1,000 m max. | 1,000 m max. | |||||||||||
| Other | No corrosive or explosive gas or vapor | No corrosive or explosive gas or vapor | |||||||||||
| Terminal box | Mounting position (leg mounting type) |
ー | 200L or smaller | 225S or larger | |||||||||
| Left side as seen from load | Left side as seen from load |
Top side | |||||||||||
| Port orientation (leg mounting type) |
ー | 200L or smaller | 225S or larger | ||||||||||
| Toward opposite operation side | Toward opposite operation side | Leftward as seen from load |
|||||||||||
| Orientation changeable at intervals of 90 degrees | Orientation changeable at intervals of 90 degrees | ||||||||||||
| Material | Steel plate | Steel plate | |||||||||||
| Lead wire | System | Terminal strip system | Lug system | ||||||||||
| *5 in total | 3 | 3.7 kW or smaller: 9 5.5 to 55 kW: 12 75 to 132 kW: 9 160kW or larger: 3 |
|||||||||||
| Color of coating | Munsell Ｎ5 (gray) | Munsell Ｎ1.2 (black matte) | |||||||||||
| Standard | Applicable | JIS C 4210 | JIS C 4213 | ||||||||||
| Efficiency | ー | JIS C 4034-30:2011 (IE3-equivalent) | |||||||||||
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Note
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*1The manufacturable range is up to 600 V.
*2The starting method (*1) is based on 4P.
*3Temperature rise for insulation class (*2): frame size 112M or smaller: "E" rise, frame size 132S to 225S: "B" rise
*4An atmospheric temperature (*3) of up to +50°C is acceptable only with frame sizes of 200L or smaller during commercial power supply operation.
*5No. of lead wires (*4) applies to models in stock. For made-to-order products, specify the starting method and no. of lead wires.
*6If you wish to export products (motors as they are or installed in machines, equipment, etc.) to foreign countries, please contact us separately to obtain information about the high-efficiency regulations enforced and implemented in the respective countries.
Outdoor type
| Standard efficiency | Premium efficiency | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Housing structure | Totally-enclosed fan-cooled type | Totally-enclosed fan-cooled type | |||||||||||
| Type | Steel frame | MLH | MLK | ||||||||||
| Cast iron frame | ー | MLU | |||||||||||
| Output | 0.2 to 0.4 kW | 0.75 to 375kW | |||||||||||
| Frame size | 63Ｍ to 80M | 80Ｍ to 355K | |||||||||||
| *1 Rated voltage and rated frequency |
|
|
|||||||||||
| Time rating | S1 (continuous) | S1 (continuous) | |||||||||||
| Protection rating | IP44 | IP55 | |||||||||||
| *2 Starting method | Direct-on-line starting | 3.7 kW or smaller: Direct-on-line starting 5.5 to 55 kW: -△ starting75 kW or larger: Direct-on-line starting |
|||||||||||
| *3 Thermal class | 120 (E) | 155 (F) | |||||||||||
| Direction of rotation | CCＷ (counterclockwise as seen from load side) | CCＷ (counterclockwise as seen from load side) | |||||||||||
| Ambient conditions | Temperature | -20°C to +40°C | －30°C to *4＋40°C | ||||||||||
| Humidity | 100%RH max. (no condensation) | 100%RH max. (no condensation) | |||||||||||
| Altitude | 1,000 m max. | 1,000 m max. | |||||||||||
| Other | No corrosive or explosive gas or vapor | No corrosive or explosive gas or vapor | |||||||||||
| Terminal box | Mounting position (leg mounting type) |
ー | 200L or smaller | 225S or larger | |||||||||
| Left side as seen from load | Left side as seen from load |
Top side | |||||||||||
| Port orientation (leg mounting type) |
ー | 200L or smaller | 225S or larger | ||||||||||
| Toward opposite operation side | Toward opposite operation side | Leftward as seen from load |
|||||||||||
| Orientation changeable at intervals of 90 degrees | Orientation changeable at intervals of 90 degrees | ||||||||||||
| Material | Steel plate | Steel plate | |||||||||||
| Lead wire | System | Terminal strip system | Lug system | ||||||||||
| *5 in total | 3 | 3.7 kW or smaller: 9 5.5 to 55 kW: 12 75 to 132 kW: 9 160kW or larger: 3 |
|||||||||||
| Color of coating | Munsell Ｎ5 (gray) | Munsell Ｎ1.2 (black matte) | |||||||||||
| Standard | Applicable | JIS C 4210 | JIS C 4213 | ||||||||||
| Efficiency | ー | JIS C 4034-30:2011 (IE3-equivalent) | |||||||||||
-
Note
-
*1The manufacturable range is up to 600 V.
*2The starting method (*1) is based on 4P.
*3Temperature rise for insulation class (*2): frame size 112M or smaller: "E" rise, frame size 132S to 225S: "B" rise
*4An atmospheric temperature (*3) of up to +50°C is acceptable only with frame sizes of 200L or smaller during commercial power supply operation.
*5No. of lead wires (*4) applies to models in stock. For made-to-order products, specify the starting method and no. of lead wires.
*6If you wish to export products (motors as they are or installed in machines, equipment, etc.) to foreign countries, please contact us separately to obtain information about the high-efficiency regulations enforced and implemented in the respective countries.
