| MZ Motor |
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Years of trouble free service in cranes have made MZ range of totally enclosed surface cooled slipring motors a popular choice amongst all crane manufacturers.
MZ range of motors have been specially designed to suit ardous crane duty application e.g. Hoist, travel, traverse drivers. |
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Frame Size
MZ3514-MZ6335 |
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| Output |
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| MZ Motor |
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| 6 Pole Frame Size |
Output as S2-30 Minutes |
| MZ3514 |
2.2 kW |
| MZ6335 |
33.7 kW |
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| 8 Pole Frame Size |
Output as S2-30 Minutes |
| MZ4120 |
3.7 kW |
| MZ6335 |
22 kW |
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| Standards |
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MZ motors are designed to suit specific crane duty requirements. Dimensionally MZ motors do not conform to IEC requirement and are manufactured as per company standard.
For other requirements e.g. Performance and test if complies with IS325-1996. |
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Mounting
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IS2253 |
Protection |
IS4691 |
Cooling |
IS6362 |
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| Supply Voltage & Frequency |
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MZ motors are normally wound for three phase, 415V+10%, 50c/s+5% supply conditions. However, motors may be offered for other voltage upto 60V, other preferred voltages being 380V, 400V, 440V depending on requirement.
The supply voltage is assumed to be virtually sinusoidal and balanced as defined is IS 325.
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| Site Conditions |
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Motors are suitable for operation at rated duty with on ambient temperature upto 40o C and altitude not exceeding 1000 m above mean sea level.
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Rating and Performance :
MZ motors are rated for short time S2 duty condition with either 30 minutes or 60 minuted or 90 minutes duration.
To suit actual operating conditions motors are designed to operate satisfactorily on periodic duty system with S3,S4 or S5 duties involving starts, reversals, plug barking and jogging.
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Insulation and Temperature Rise :
Both stator and rotor winding are provided with well proven Class ‘F’ insulating system and total temperature rise limited to 120°C.
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Mounting :
MZ motors are manufactured with horizontal foot mounted construction with single cylindrical shaft extension (M1001).
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Cooling Form :
Motors are totally enclosed surfaced cooled type (IC410).
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Degree of Protection :
Standard motors are provided with IP44 degree of protection. Higher degree of protection e.g. IP54, IP55 may be provided on request.
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| Note : Motor ratings are normally calculated by Crane manufacturers based on IS4137 & IPSS 2-02-004-84. For specific recommendation regarding selection of frame size refer to us. |
