IEC Electrical Motor Control

As control systems become more compact and the need for more cost-competitive industrial motor control options arise, an IEC motor controller is the answer. Complying with the stringent International Electrotechnic Commission (IEC) 60947 standards, our IEC motor controller series of contactors and starters offer convenience and cost-effectiveness in one package.

Complete line of FUJI Industrial Motor Control products

AutomationDirect has partnered with Fuji Electric to carry Fuji's DUO series line of motor contactors, overload relays, and manual motor starters (MMS), as well as their Odyssey line of large contactors and overloads featuring Super Magnet™ coil technology. These offerings provide complete motor control solutions up to 300 horsepower.

The conventional starters in the DUO line can accommodate motors up to 100 horsepower at 480 VAC, while MMS combination starters can accommodate motors up to 40 horsepower at 480 VAC and are UL Type E listed.

The Odyssey Series of contactors come in sizes up to 300 horsepower at 480 VAC. The DUO series contactors are available in 24 VAC, 24 VDC, 120 VAC, and 240 VAC coil versions. The Odyssey series of contactors is available with 24 V, 120 V, and 240 V Super Magnet coils that can be powered with AC or DC.

A complete line of accessories is also available.

GH Series and Cutler-Hammer* motor control components
Existing customers using the GH-Series and Cutler-Hammer products can continue to purchase these components at our always-low prices. The GH-Series IEC contactors provide switching capacities to 100 thermal amps. Combine a GH-Series contactor with an adjustable bi-metallic overload relay or a motor starter/ protector for a complete motor control solution.

The Cutler-Hammer AE16 Freedom Series IEC Contactors are available in a 45 mm frame size that can handle up to 20 hp at 460 V. They are DIN-rail mountable in either the vertical or horizontal upright position. The Cutler-Hammer IEC Starters are full voltage magnetic starters for polyphase induction motors. These starters also protect the motor against running or stalled overcurrents.

*Cutler-Hammer parts are available for sale in North America only.

A complete line of accessories is also available.

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The DUO line of components are fully integrated and can be used to build a conventional contactor/ overload starter, or the new Fuji manual motor starter (MMS) can be combined with an SC-E series contactor for a combination starter. Since the MMS is UL listed for Category E self-protected motor control, it can be used for motor branch circuit protection without the need for additional protection such as fuses or molded case circuit breakers. NOTE: Recent changes in UL 508 now require that short circuit trip contacts should be added to the MMS, and a terminal cover should be added to the 32 amp frame size MMS.

AutomationDirect offers the MMS in a 32-Amp version with a 45 mm frame width and a 63-Amp version with a 55 mm frame width. Both MMS versions have high breaking capacities, up to 100,000 Amps in some ranges. The MMS combination starters can accommodate motors up to 40 horsepower at 480 VAC. The conventional starters in the DUO line can accommodate motors up to 100 horsepower at 480 VAC.

The larger contactors feature the Super Magnet™ coil for greater reliability and positive pick-up and drop-out. The Super Magnet™ combines an integrated circuit with a conventional coil for superior performance. Drop-out and chattering is eliminated during high inrush start-ups. The Super Magnet™ accepts AC or DC coil control voltage in the respective ranges. Reversing kits are available for the SC-E series contactors. A complete line of accessories is also available.

The Odyssey series of contactors and overloads also feature the Super Magnet coil and come in sizes up to 300 horsepower at 480 VAC. The Odyssey series contactors are available in four sizes with overloads to match any motor up to 300 horsepower.

Both the SC-E series products and Odyssey lines are available in 24 VAC, 24 VDC, 120 VAC, and 240 VAC coil versions.

Contactors are available in the following ranges:

• 9-25 Amp (SC-E02 to SC-E05 Series)
• 32-50 Amp (SC-E1 to SC-E2S Series)
• 65-80 Amp (SC-E3 and SC-E4 Series)
• 105-150 Amp (SC-E5 to SC-E7 Series)
• 180-360 Amp (Odyssey 3NC Series)

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Manual motor starter advantages

Innovative technology has integrated the functions of a molded case circuit breaker (MCCB) and a thermal overload relay. The advantages of this new technology include:

• Compactness
• Mounting space: MCCB + Thermal overload relay: 100% MMS: 43% (57% reduction)
• High breaking capacity
• 50, 100 kA 400 VAC NOTE: See specific ratings for each MMS at the operating voltage.
• IEC short circuit protective coordination
• IEC 60947-4-1 Type 1, 2
• Reduction in wiring work
• MCCB + Contactor + Thermal overload relay: 100% MMS + Contactor: 50% (50% reduction)

Standards

• UL 508
• CSA C22.2 No.14
• IEC 60947-1, 60947-2, 60947-4-1

Ecologically friendly design

• Recyclable thermoplastic resin used in plastic parts
• Indication of materials used - Cadmium-free contacts

Manual Motor Starters - BM3 Series

A Manual Motor Starter (MMS) provides reliable protection for overloading and short-circuiting in motor branch circuits. We offer compact starters with a 55 mm width for rated currents to 63 A and motor capacities to 40 Hp at 480 VAC.

Features include:

• Various types available in two different frame sizes:
• - 32A frame for the 45 mm width - 63A frame for the 55 mm width
• A wide motor capacity range up to 30 kW (40 Hp at 480 VAC)
• Rotary handle operators
• ON/ OFF and trip state indication for all frames
• Adjustable thermal-magnetic trip types
• A wide-rated operational current range of up to 32 A for the 45 mm wide and 63 A for the 55 mm wide starters.
• Suitable for 3-phase motors up to 40 Hp at 480 VAC.
• - 32AF: BM3RHB Series
• - 63AF: BM3VHB Series
• Maximum breaking capacity of 100 kA at 240 VAC and 50 kA at 460 VAC per IEC 60947-2
• Common accessories to reduce inventory requirements
• International standards/approvals: IEC, cULus

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MANUAL MOTOR STARTER (MMS) APPLICATIONS

Described below are typical problems encountered in conventional systems, along with the solution offered using the MMS system.

SHORT-CIRCUIT BREAKING PROTECTION

When numerous small and medium motor loads exist in a circuit requiring high breaking capacity, there is no high-breaking capacity circuit breaker with a small rated current for short-circuit protection.

The MMS can be used in 100 kA short-circuit current circuits for three-phase, 240 V motors with rated capacity up to 15 kW, and in 50 kA short-circuit current circuits for three-phase, 415 V motors with rated capacity up to 30 kW.

BACK-UP BREAKING SYSTEM

When a back-up molded case circuit breaker (MCCB) is installed upstream to solve the problem described in "short-circuit breaking protection" above, a short in one of the load circuits also trips the upstream breaker and stops the other operating load circuits.

Despite their compact size, the 32AF and 63AF MMS provide high-performance short-circuit current breaking. They eliminate the need for an upstream circuit breaker for back-up use.

OVERLOAD PROTECTION

Motor protection breakers cannot be adjusted to match the rated current of the motor being protected.

Equipped with a wide-range current adjustment dial (with maximum/ minimum ratio of 1.4 to 1.6), the MMS easily adjusts to match the rated current of the motor, for optimum protection.

CONTROL PANEL SIZE

Considerable space is required to install a back-up circuit breaker or a combination starter consisting of a circuit breaker and a thermal overload relay. As a result, the panel size has to be increased.

The compact size of the MMS, including thermal overload relay functions, enables a smaller installation area with less wiring space, for a reduction in panel size.

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GH-Series and Cutler-Hammer motor control components

Existing customers using the GH-Series and Cutler-Hammer products can continue to purchase these components at our always-low prices. The GH-Series IEC contactors provide switching capacities to 100 thermal amps. Combine a Centsable contactor with an adjustable bi-metallic overload relay or a motor starter/protector for a complete motor control solution.

The Cutler-Hammer AE16 Freedom Series IEC Contactors are available in a 45 mm frame size that can handle up to 20 hp at 460 V. They are DIN-rail mountable in either the vertical or horizontal upright position. The Cutler-Hammer IEC Starters are full voltage magnetic starters for polyphase induction motors. These starters also protect the motor against running or stalled overcurrents.

AutomationDirect offers thousands of industrial automation products through its Online Superstore and 2,000-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, wire and more. The company offers high-quality automation products at savings up to 50%, 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 6,500 quality products, often priced well below the industry average. To request a free catalog, visit their Web site or call 800-633-0405.

High continuous current ratings in compact, rugged packages. Coils available to your specification anywhere in the range of 6 to 240 volts DC. An additional bridge rectifier enables using coils with AC power.

Silver-plated busbars on 600-amp and higher models prevent oxidation and eliminate the need to prepare connectors for installation.

Weld-resistant, hard-wearing silver alloy contact tips for excellent conductivity and long life. Double breaking design protects against arcing.

Easy to install, and fully field serviceable with genuine Curtis/Albright parts.

Auxiliary contacts. A set of auxiliary contacts (one normally open, one normally closed) mechanically linked to the main contacts.

Magnetic blowouts.Protects against sustained arcs; recommended at 48 volts DC and higher.

Coils for continuous operation.Allow continuous energization of the coil, compared with standard coils rated for intermittent operation (ON time under 70 percent and less than 15 minutes).

Mounting brackets.A wide selection of standard brackets for easy installation anywhere; customized brackets and hardware for special applications are available.

Coil suppression.Diode suppresses voltage spikes when coil is de-energized. Because this slows the contacts drop-out time, resistor/diode combinations are available to minimize this effect.

Enclosed top cover.Protects contacts from dust and other contaminants (not recommended with use of magnetic blowouts).

AC operated coil.DC coil fitted with bridge rectifier for use with AC power.

Large diameter contact tips.Increased surface area minimizes contact corrosion from high switching frequencies.

Lockable mechanism.A manual disconnect switch that – once engaged to the OFF position – can only be rearmed with the supervisor's key.

Metal enclosed contactors.Available for industrial vehicle applications requiring UL-EE rating.

Overview

Cutler-Hammer Lighting Contactors from Eaton's electrical business are designed to provide a safe, convenient means for local or remote switching of tungsten (incandescent filament) or ballast (fluorescent and mercury arc) lamp loads. They are also suitable for other loads such as low pressure and high-pressure sodium lamp loads and other non-motor (resistive) loads.

They are not recommended for most sign flashing loads. These lighting contactors are designed to withstand the large initial inrush currents of tungsten lamp loads without contact welding. They are fully rated and do not require derating.

• Ballast Lamps - Fluorescent, Mercury Vapor, Metal Halide Sodium Vapor, Quartz - 600V maximum.
• Filament Lamps - Incandescent, Infrared, Heating - 480V maximum, line to line; 277V maximum line to neutral.
• Resistance Heating - Radiant and convection heating, furnaces and ovens.

C30CN Electrically and Mechanically Held Contactors
The Enclosed C30CN (ECC) is available with an electrically or mechanically held contactor in a non-combination unit. The C30CN can be configured with up to 12 poles (30A maximum per pole). Power poles are available in single or double pole designs and can be mounted to provide either normally open or normally closed operation with a maximum of 12 NO poles or 8 NC and 4 NO poles. Each pole is capable of accepting up to 8 AWG wire. Available in 2- or 3-wire control and in a wide range of enclosure types.

CN35 Electrically Held Contactors
Cutler-Hammer® Type CN35 Electrically Held Lighting Contactors from Eaton's electrical business are designed to handle the switching of tungsten (incandescent) or ballast (fluorescent and mercury arc) lamp loads as well as other non-motor (resistive) loads. The Enclosed CN32 (ECL03, ECL12 and ECL14) is available in non-combination and combination styles. Available in 2- or 3-wire control and in a wide range of enclosure types.

A202 Magnetically Latched Contactors
The Cutler-Hammer Enclosed A202 (ECL04, ECL13, and ECL15) is available in non-combiantion and combination styles. A permanent magnet is built into the contactor structure that will maintain the contactor in its energized state indefinitely without using control power. When energized, a DC current is applied to the latch coil, producing a magnetic field that reinforces the polarity of the permanent magnet, pulling in the contactor. The current to the coil is disconnected by the coil clearing interlock. In order to drop out the contactor, it is necessary to apply a field through the STOP coil in the reverse direction to the permanent magnet. This momentarily cancels the magnetic attraction and the contactor drops out. Available in 2- or 3-wire control and in a wide range of enclosure types.

For more information on Cutler-Hammer Lighting Contactors, visit Eaton's Product Page or click the email button on the right side of this page.

This is truly a universal contactor, reasonable priced, and solves many switching problems, even in including hazardous environments. If your current requirements are lower than 225A, you may want to take a look at GIGAVAC's 150 Amp GX11. It's the same size but has smaller terminals for smaller sized wire connections.

Overview

Eaton's Vacuum Contactors and Starters were designed for starting and controlling three-phase, 50/60 Hz, AC motors. Each contact is enclosed in a vacuum bottle to reduce and contain contact arcing. This design offers excellent performance for plugging and jogging applications.

Application Description

The Vacuum Contactors and Starters are offered in three classifications. They are NEMA rated devices up to 600V AC, Special Purpose rated devices up to 1500V AC and Mining rated devices rated up to 1500V AC. Each device is tested to different standards to serve their market. Typical applications include full voltage control of three-phase squirrel cage motors, primary control of low voltage wound rotor motors and circuit switching for low voltage capacitors for power factor improvement.

A vacuum contactor is affected by atmospheric pressure on the bellows of the vacuum bottles. Up to an altitude of 6600 feet, the contactor is designed to tolerate normal variations in barometric pressure. If the contactor is to be operated above 6600 feet above sea level, consult your Cutler- Hammer representative.

Features

• Rugged, compact and lightweight
• Quiet operation
• Electrical and mechanical interlocks available
• Long service life

Benefits

• Easy maintenance with front removable coil and auxiliaries
• Eliminate extra surge suppressors with the standard low chop interrupters
• Plan your preventative maintenance schedule by utilizing the contact wear indicator, standard on all vacuum bottles

Operation

The contact structure of the vacuum break contactor is located inside sealed ceramic tubes that have been evacuated of air. Any arc occurring across the contacts upon opening is automatically extinguished because ionized air is not available to sustain it — the arc breaks when the current passes through zero. The arc typically does not service beyond the first half cycle once the contacts begin to separate. The large arc chutes normally associated with contactors of this size are not required. The ceramic tube with the moving and stationary contacts is called a vacuum interrupter or bottle. There is one bottle for each pole on the contactor. A metal bellows (like a small, circular accordion) within the bottle allows the moving contact to be closed and pulled open from the outside without leaking air into the bottle. Both the bellow and the metal- to-ceramic seals of these state-of-the- art bottles have been refined to the point where the possibility of loss of vacuum has been virtually eliminated.

Standards and Certifications

• NEMA Devices
• UL Listed File #E1491, Guide Number NLDX
• CSA Approved

Special Purpose Devices

• IEC 947-4-1
• CE Approved EN 60947-4-1
• UL Listed File #E1491, Guide Number NLDX
• CSA Approved

For more information on Vacuum Contactors, visit Eaton's Product Page or click the email link on the right side of this page.

These industrial AC motors are available in a variety of horsepower ranges from .25 to 100 horsepower that feature dual 230/460 VAC and 575 VAC voltages and a base speed of 1200 or 1800 RPM.

All Marathon motors come with a three year warranty supported by authorized Marathon Electric service centers.

The Yxxx and Exxx series AC 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 Chip XRI® - Ultra High Efficiency Inverter-Duty Motors (40 Hp to 100 Hp)

NOTE: 575V Black Max® and Blue Chip XRI® Motors are now available

Prices on MicroMAX motors start at $119.

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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.

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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 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.

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MicroMAX Series Inverter Duty Motors

AutomationDirect offers the microMAX™ series AC inverter duty motors from Marathon Electric at great prices. When compared with permanent magnet DC (PMDC) technology, these motors are more efficient & produce more torque per amp. Models include horsepower ranges from .25 to 10 Hp. The MicroMAX series motors are performance matched with the GS series AC drives.

MicroMAX AC Inverter-Duty Motor Features include:

• 1000:1 Constant torque operation from 0 to base speed (TENV ratings)
• 20:1 Constant torque operation from 1/20 speed to base speed (TEFC ratings)
• 2:1 Constant horsepower to twice base speed (RPM)
• Class H insulation with CR200 (corona-resistant) magnet wire
• Continuous duty at 40 ºC ambient
• C-Face with rigid base and C-Face with removable rigid base
• Service factor: 1.0
• Utilizes double shielded ball bearings
• Exxon Polyrex® EM bearing grease
• Eliminates brush and commutator maintenance
• UL recognized (E49747) and CSA certified (LR37479)
• Three year warranty (NOTE: Our typical 30 day return policy is NOT supported on these motors. The warranty is supported by authorized Marathon Electric® service centers, which are listed under the Tech Support section of our Web site.)

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TYPICAL APPLICATIONS INCLUDE:

• Replaces 90 V and 180 V PMDC motors (when used with AC variable frequency drives)
• Machine tools
• Conveyors
• Packaging machines
• Batching machines
• Printing equipment

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Current MicroMAX series models include:

• Y500 - Inverter-Duty AC Motor, Marathon Electric microMAX Series, 230 VAC, 3 Phase, 0.25 Hp, 1800 RPM
• Y360 - Inverter-Duty AC Motor, Marathon Electric microMAX Series, 230/ 460 VAC, 3 Phase, 0.5 Hp, 1800 RPM
• Y364 - Inverter-Duty AC Motor, Marathon Electric microMAX Series, 230/ 460 VAC, 3 Phase, 1.0 Hp, 1800 RPM
• Y368 - Inverter-Duty AC Motor, Marathon Electric microMAX Series, 230/ 460 VAC, 3 Phase, 2.0 Hp, 1800 RPM
• Y999 - Inverter-Duty AC Motor, Marathon Electric microMAX Series, 230/ 460 VAC, 3 Phase, 3.0 Hp, 1800 RPM
• Y372 - Inverter-Duty AC Motor, Marathon Electric microMAX Series, 230/ 460 VAC, 3 Phase, 5.0 Hp, 1800 RPM
• Y994 - Inverter-Duty AC Motor, Marathon Electric microMAX Series, 230/ 460 VAC, 3 Phase, 7.5 Hp, 1800 RPM
• Y996 - Inverter-Duty AC Motor, Marathon Electric microMAX Series, 230/ 460 VAC, 3 Phase, 10 Hp, 1800 RPM

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Marathon Black Max Vector-Duty Motors (Y3xx and Y5xx Series)

Black Max® TENV motors are suited for any high performance application, utilizing Closed- or Open-Loop Vector controls or Volts/Hertz drives, for countless machinery applications, where full torque at zero speed is required. The low inertia design provides extremely quick response to accel and decel commands, as well as changes in direction. Uses include machine tool, conveyors, palletizers, crane & hoist systems, accumulators, packaging equipment, extruders, converting equipment and numerous other motion control applications. Black Max series models include horsepower ranges from .25 to 30 Hp.

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 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.

Features include:

• Class F MAX GUARD® insulation system Constant torque operation from 0 to base speed on vector drive Constant horsepower operation to twice base RPM Continuous duty at 40° C ambient
• Optimized for operation with IGBT inverter (NEMA Design A) Class F N/C thermostats
• Utilizes double shielded ball bearings Exxon Polyrex® EM bearing grease Removable base on some models, as noted
• F1 standard, field reversible to F2 (except where noted) Encoder and brake provisions included on opposite drive end
• Totally enclosed non-ventilated, C-Face with Rigid Base
• UL recognized and CSA certified (contact factory for CE marking)
• Three year warranty (NOTE: Our typical 30 day return policy is NOT supported on these motors.

The warranty is supported by authorized Marathon Electric® service centers, which are listed under the Tech Support section of our Web site.)

NOTES: A Dynapar model HS35 shaft-mounted encoder can be supplied with the motor. See the product category "Marathon Black Max w/ Encoder". The encoder requires a 5-26 VDC power source, provides a count of 1,024 pulses per revolution (PPR) output and includes a 10 pin connector. Motors with the shaft-mounted encoder have a part number suffix of "-A772".

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Blue Max® 2000 Vector-Duty Motors (Y5xx Series)

Blue Max™ motors are used in variable frequency drive applications requiring full rated torque at zero speed, utilizing Closed- or Open-Loop (sensorless) Vector controls, or up to a 20:1 constant torque range, utilizing Volts/Hertz drives. The cast iron construction makes this motor an ideal choice for process lines, chemical plants, paper mills or any other environment requiring cast iron or "severe duty" construction.

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 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.

Features include:

• Class H MAX GUARD® insulation system
• Constant torque operation from 0 to base speed on vector drive, including TEFC (on V/Hz drives, TEFC motors are limited to 20:1 constant torque)
• Constant horsepower operation to 1.5 times base RPM
• Continuous duty at 40° C ambient
• Optimized for operation with IGBT inverter (NEMA Design A)
• C-Face foot mount through 100 HP (NEMA frame type TC motors)
• Class F N/C thermostats
• Cast iron frame and brackets
• Utilizes double shielded ball bearings with Exxon Polyrex® EM grease
• "Class B" temperature rise on blower-cooled motors F1 standard, field reversible to F2
• Encoder and brake provisions included on opposite drive end
• UL recognized and CSA certified (contact factory for CE marking)
• Three year warranty (NOTE: Our typical 30 day return policy is NOT supported on these motors.

The warranty is supported by authorized Marathon Electric® service centers, which are listed under the Tech Support section of our Web site.)

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Marathon Blue Chip XRI® - Ultra High Efficiency Inverter-Duty Motors (E2xx 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. Consult the product technical specifications to determine the maximum continuous duty constant torque speed range. Blue Chip XRI motors meet NEMA Premium™ efficiencies.

Features include:

• 10:1 variable torque, 20:1 constant torque on VFD with 1.0 service factor
• Class F insulation
• Continuous duty at 40° C ambient
• Cast iron frame construction for rigidity and reduced vibration
• 1.15 service factor Shaft slinger
• Totally enclosed, rigid base
• Utilizes double shielded ball bearings
• Exxon Polyrex® EM bearing grease UL recognized and CSA certified
• Three year warranty (NOTE: Our typical 30 day return policy is NOT supported on these motors.

The warranty is supported by authorized Marathon Electric® service centers, which are listed under the Tech Support section of our Web site.)

AutomationDirect offers thousands of industrial automation products through its Online Superstore and 2,000-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, wire and more. The company offers high-quality automation products at savings up to 50%, along with detailed documentation and superior sales and technical support. Same-day shipping on in-stock items ordered by 6 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 6,500 quality products, often priced well below the industry average. To request a free catalog, visit their Web site or call 800-633-0405.