Challenger Foot Mounted

Challenger Foot Mounted ( TB On Top)

MARATHON presents CHALLENGER Series TEFC Squirrel cage motors with excellent product features and outstanding performance parameters.

The design of this range is based on advanced technical knowhow and the level of excellence associated with this international company manufacturing motors in India for more than half a century. Stringent quality control procedures are adopted at each stage of production as a part of the company policy to ensure that each motor is manufactured to the requisite quality standard ensuring customer satisfaction.

A.C. low voltage TEFC Sq. Cage Induction motor.

Frame size–71–355M
(designated as 12D71 - 12D355M for Challenger Series)

• 2 Pole - 0.75 kW - 200 kW
• 4 Pole - 0.75 kW - 250 kW
• 6 Pole - 0.55 kW - 180 kW
• 8 Pole - 0.37 kW - 150 kW

(Motors beyond ratings mentioned above are also available, contact Alstom directly.)
Supply Voltage & Frequency

The Motors can be wound for any voltage from 200 volt to 660 volt and for either 50 Hz or 60 Hz frequency. Standard motors are wound for 3 phase, 415 volt, 50 Hz supply condition.

The Motors can also be supplied for dual voltage operation or for operation with variable voltage and variable frequency supply(VVVF),or for operation over a wide voltage range. Separate ‘VD' series of motors suitable for VVVF drive are specially designed to withstand higher dielectric strength to combat voltage surges originated from high switching frequency with IGBT drives.

The supply voltage is assumed to be virtually sinusoidal and balanced as defined in IS 325.

Insulation                      :            Class F / Class H (Optional)
Duties                            :            S1 - S6
Performance                :            Eff2 / Eff1 as per IS 12615 (On request)
Frame                            :            Elegant looking rugged Cast Iron

Cooling Fan                  :            Bidirectional / Efficient heat Transfer

Shaft                              :            C45 grade carbon steel
Terminal Box                :           Side / Top (Optional from frame 160 onwards)


Challenger Series conforms to the following national and international standards.
Dimensions IS 1231 - 1974
IS 2223 - 1983
IEC 60072
Performance IS 325 - 1996 IEC 60034 - 1
Output IS 1231 - 1974 ---
Protection IS 4691 - 1985 IEC 60034 - 5
Mounting IS 2253 - 1974 IEC 60034 - 7
Motors Complying with IEC-60034-1 also comply with many national standards of EuropeanCountries. Motors suitable for NEMA standards duly approved by CSA/NRTL(C) are also manufactured.
Mounting Arrangements
Standard motors are manufactured with horizontal foot mounted construction (IMB3) with single cylindrical shaft extension at D. E. Side.

Following mounting options are available :

• Horizontal shaft motors :
• Code I IM-B3, B5, B6, B7, B8, B14, B34, B35

• Vertical Shaft Motors :
• Code I IM- V1, V3, V5, V6, V15, V18, V19,V36