Do you need an industrial motor for the long run? AutomationDirect has a Marathon motor for your needs.Our quality AC variable speed motors fit the bill for a variety of induction motor applications requiring a blower motor, "squirrel cage" motor, fractional motor, pump motor or other heavy-duty industrial applications.
Marathon Inverter-Duty and Vector-Duty AC Motors
AutomationDirect
offers a wide variety of AC motors (both inverter-duty and vector-duty motors) from Marathon Electric Manufacturing Corporation®. These vector-duty and inverter-duty industrial motor models, unless otherwise stated, are rated for continuous operation in a 40 C ambient and for altitudes up to 3,300 feet (1,000 meters) above sea level.
AutomationDirect
is proud to partner with Marathon Electric to provide you with premium quality AC motor models for your blower motor, induction motor, pump motor or other industrial motor applications at great prices. Marathon Electric has over 15 years experience in the design, manufacturing and application of AC variable speed motors and well over 15,000 hours of laboratory testing in state-of-the-art facilities. Marathon Electric's expertise in the application of AC drives with all induction motor products is unsurpassed. Plus, at AutomationDirect, you can purchase a Marathon motor at an incredibly affordable price. Over two dozen premier manufacturers of AC variable frequency drives specify Marathon Electric's performance-matched industrial motor products in their drive systems.
These are cost-effective, high performance motors that, in conjunction with today’s drive technology, provide enhanced performance in virtually any industrial or commercial application. Team up one of our DURApulse or GS AC drives with a Marathon Electric motor. We have a drive that matches every motor we currently carry. NOTE: Our typical 30-day money back guarantee does not apply to Marathon motors.
However, standard warranty coverage is in effect.The Yxxx and Exxx series motor products include:
- MicroMAX® Series AC Inverter-Duty Motors (0.25 Hp to 10 Hp)
- Black Max® Vector Duty Motors (0.25 Hp to 30 Hp)
- Black Max® Vector Duty Motors with Encoder (0.25 Hp to 30 Hp)
- Blue Max® 2000, Vector Duty Motors (40 Hp to 100 Hp)
- Blue Max® 2000, Vector Duty Motors with Encoder (40 Hp to 100 Hp)
- Blue Chip XRI® - Ultra High Efficiency Inverter-Duty Motors (15 Hp to 100 Hp) Inverter-Duty Motors - Description(MicroMAX® and Blue Chip XRI® Series)Inverter-Duty describes a class of motors that are capable of operation from a variable frequency drive.These motors do not have provisions for mounting encoders, but are suitable for use with volts/hertz or open loop vector controls.
MicroMAX motors have a general purpose, NEMA Design B motor casing and are suitable for most variable torque and some limited speed range constant torque applications.
Consult the product technical specifications to determine the maximum continuous duty constant torque speed range.
As required under Federal law, MicroMAX motors may be required to comply with EPAct efficiencies when operating from utility power.
Blue Chip XRI motors meet NEMA Premium™ efficiencies.
Vector-Duty Motors - Description (Black Max® and Blue Max® Series)
Vector-Duty describes a class of motors that are specifically designed for operation from a variable frequency drive.
Marathon Electric’s Vector-Duty motors are suitable for use with either volts/hertz or vector controls, with or without feedback devices.
These motors feature a wide constant torque and/or constant horsepower speed range and are performance-matched to all current technology IGBT drives.
The Black Max series is available with a Dynapar model HS35 shaft-mounted encoder (Yxxx-A772 part numbers).
The Blue Max series is also available with a Dynapar model HS35 shaft-mounted encoder (Yxxx-A774 and Yxxx-A775 part numbers)(See "Marathon Black Max w/ Encoder" or "Marathon Blue Max w/ Encoder" product categories.)
The patented MAX GUARD® insulation system is an integral part of every Marathon Electric vector-duty motor, and permits operation at any cable length and any carrier frequency.
All comply with NEMA MG1-1998, specifically Part 31.
As these motors are specifically designed for operation through an inverter, they are exempt from EPAct legislation.
Applications
Typical applications for these motors include: •
Variable torque loads
Applications include: Fans, blowers and centrifugal pumps.
Torque varies as the square of the speed, and horsepower as the cube of the speed.
Operation below base speed significantly lightens the load on the motor.
While most variable torque applications do not require the motor to operate below half speed, the motor is fully capable of operation to zero speed.
Operation above base speed significantly adds to the load on the motor; therefore, you must carefully review applications requiring variable torque above base speed.
Refer to the product technical specifications for use of general purpose three phase motors on variable frequency drives. •
Constant torque loads
Applications include: Conveyors, elevators, hoists, extruders, positive displacement pumps, mixers and converting equipment.Torque remains constant throughout the range of operation, and extra care should be taken in the proper application of motors, especially at very low speeds.
Most constant torque (C.T.) applications don’t require operation below 10:1 (i.e. 6 Hz operation on a 60 Hz motor), but an increasing number of applications historically reserved for servo and/or stepper systems are being served with motors capable of operation beyond 20:1…even up to 2000:1 (zero speed, constant torque).
Applications requiring greater than 20:1 C.T. are ideal for MicroMAX®, Black Max® or Blue Max® motors.
These motors provide full rated torque within their listed speed range, without exceeding a Class F temperature rating while under inverter power (many operate at Class B).
Ratings have been developed, based on extensive testing on IGBT inverters, set at a minimum 3 KHz (or equivalent) carrier frequency.
These vector-duty and inverter-duty motors are designed for operation at 150% of rated load for one minute, up to the base speed of the motor (overload capability declines to 100% as the motor reaches maximum constant HP speed).
These motors accommodate constant horsepower operation to 1-1/2 to 2 times base speed, subject to the motor’s maximum safe mechanical speed limit.
Please refer to product technical and performance specifications for each motor’s capability.
Motors rated for zero RPM continuous duty (1000:1 or 2000:1) must be powered by vector drives to produce rated torque without overheating.
Optimum zero speed and low-speed full torque performance may require a closed loop vector drive (with encoder feedback). •
Constant horsepower loads
Applications include: Coil winders, band saws, grinders, and turret lathes.
Operation requires the motor to deliver the same horsepower rating, regardless of shaft speed.
Torque increases at low speed and decreases at higher speed.
Most general purpose motors can deliver constant horsepower up to 1 1/2 times base speed.
However, many constant horsepower applications require operation to twice base speed, and some, such as coil winders, up to 4 times base speed.
MicroMAX®, Black Max® and Blue Max® motors are designed for 1.5 to 2 times base speed.
AutomationDirect
offers thousands of industrial automation products through its Online Superstore and 1,900-page catalog.
Products include Programmable Logic Controllers (PLCs), AC drives/motors, operator interface panels/HMI, motor controls, DC power supplies, push buttons, sensors, NEMA electrical enclosures, wire duct and more.
The company offers high-quality automation products at incredible prices, along with detailed documentation and superior sales and technical support.
Same-day shipping on in-stock items ordered by 4 p.m.
ET is standard.
A 30-day, money-back guarantee is offered on most items, including software.Select the process controls and industrial wiring supplies you need from over 6,000 quality products, often priced well below the industry average.
To request a free catalog, visit their Web site or call 800-633-0405.
