Uniform sheath temperature is critical when working with engineering plastics, most of which require tight temperature windows for processing. If heating is uneven, sealing bars will not form a continuous seal and platens can be thrown out of balance. Cold sections in conventional cartridge heaters can restrict plastic flow in a manifold. In an attempt to compensate for lost heat, conventional heaters can also burn molten plastic in a probe.

Conventional heaters have coil segments which are wired in parallel and can burn out independently, leaving half of the heater cold. Lake of heater coils at segment junctions results in cold spots along the profile of the heater as seen in the picture to the right.

In contrast, Watt-Flex Split-Sheath Cartridge Heaters have a continuous coil which acts like on large on/off resistor. This continuous coil products an extremely even heat profile with no cool spots.

Watt-Flex heaters are used extensively in package sealing applications where temperature profile is crucial for insuring the continuity of a seal. They also provide an exceptionally consistent temperature profile when used in platens and dies for laminating or curing applications.

For applications where heat is lost inconsistently from the workpiece, the Watt-F;ex heater can be zoned. This process of distributing wattage ensures that the heater is custom matched to application requirements.

Since the heating coil passed across the tip of the cartridge, Watt-Flex heaters can be ordered with a fully heated tip. Unique to the split-sheath design, this feature can provide heat to the tip of a gate probe, punch die, or any close-end bore.

About Dalton Electric Heating Company:

Since 1921, Dalton Electric has been a leader in industrial process heating.

Dalton heaters are used for industrial process heat applications in automotive, aerospace, plastics, adhesives, semiconductors, and many other industries throughout the world. Products include the Watt-Flex® split-sheath cartridge heater and immersion heater, Diff-Therm® platen heaters for vacuum diffusion pumps, and related high-temperature accessories and heater modifications.

Please click on the links to the right for more information or request a quote today!

PITTSBURGH — March 24, 2004 — Chromalox®, the world's largest manufacturer of precision heat and control products, is proud to announce a partnership with Ohmcraft® to provide advanced Thick Film heating capability. The agreement between the two companies provides Chromalox as the exclusive seller and Ohmcraft as the exclusive manufacturer of Thick Film Heating products and solutions.

With over 85 years of experience in precision heat and control solutions, Chromalox combines Ohmcraft's expertise of 25 years in thick film, to become the leader in Thick Film Heating and Sensor technology. Experienced Chromalox engineers are available to assist in both new thick film applications and existing product redesigns. Whether it is engineering design, solid modeling, finite element analysis, prototyping, or extensive laboratory testing, Chromalox is committed to providing excellent product and service to our customers.

Chromalox Thick Film Heaters and Sensors provide the best possible combination of heat transfer, thermal efficiency, and temperature uniformity in applications where there is a need to save space in a product design, and offer a unique solution to a variety of applications where traditional heating methods fall short. Applications abound in semiconductor manufacturing, medical equipment, laboratory and analytical equipment, plastics processing, food processing, gas/fluid heating and digital printing and copiers. The advantages to using Chromalox Thick Film Heaters over traditional heating methods include:

• More direct surface contact ensures optimum heat transfer • Lower mass designs provide very fast thermal response for excellent operating efficiency • Fused termination points ensure strong, trouble-free connections • Low-profile, compact design minimizes space constraints in OEM applications • Advanced printing technology allows application of thick film to more surface shapes than any other manufacturer • Much finer heating patterns for tighter thermal profile tolerances • More flexible heater circuit design allows for variable heat output • Higher temperature and watt density designs than typical resistance wire-based heaters

Chromalox Thick Film Heaters and Sensors are constructed of a substrate, a base dielectric material, and a thick film printed resistor. They can be printed on a variety of metal, ceramic, glass, and plastic substrates. Chromalox has a wider range of patterning available than anyone in the industry with the ability to pattern on flat, cylindrical, concave, obtuse, and non-linear surfaces – even on the inside of a tube! Operating temperatures of up to 500°C can be achieved, if necessary. Thermal profiles of less than ±1°C are possible in many applications. Watt densities of up to 500 W/in2 are available, with typical watt densities below 100 W/in2. Customized control solutions designed for each application can range from mechanical sensors, thermostats, and thermal fuses to printed RTD's and electronic PID control schemes.

For more information, go to www.chromalox.com/products/thickfilm/ or contact Chromalox at:

Telephone: 800-443-2640, 412-967-3800; Fax: 412-967-5148; Internet: www.chromalox.com; Address: Chromalox, Inc. 103 Gamma Drive Extension, Pittsburgh, PA 15238.

About Chromalox, Inc.: For more than 85 years, customers have relied on Chromalox for the utmost in quality and innovative solutions for industrial heating applications. Chromalox manufactures the world's largest and broadest line of electric heat and control products, including heating components, immersion heaters, circulation systems, heat transfer systems, boilers, industrial and comfort air heating, heat trace cables, sensors and precision electronic controls. With multiple manufacturing, engineering, warehousing and sales locations throughout North America and Europe, Chromalox is a global supplier providing the highest level of customer support. Chromalox is headquartered in Pittsburgh, PA.

About Ohmcraft, Inc. : Ohmcraft is a Honeoye Falls, New York based Corporation. Founded in 1984, Ohmcraft provides fine line patterning solutions for applications and products in electronics, medical, glass and heating markets.

Telephone: 585-624-2610; Fax: 585-624-2692; Internet: www.ohmcraft.com; Address: Ohmcraft, Inc. 93 Paper Mill St., Honeoye Falls, NY 14472

Flomerics has released Version 8.1 of its increasingly popular Engineering Fluid Dynamics (EFD) simulation software, containing many new enhancements built on Flomerics' 20 years experience and research in thermal analysis of electronics. The new functionality includes simulation of "Joule heating", plus new "compact" models for IC components, heat pipes, and thermoelectric coolers. The treatment of thermal conductivity in printed-circuit boards has been improved and extended. The simulation of fans has also been improved with radial and swirl components of velocity as well as the fan performance curve now fully accounted for. Fans and heat sources can be switched on or off at specified times, temperatures or other specified engineering goals.

The new Joule heating model enables automatic determination of heat sources in conducting objects as they heat up due to electric current passing through them. The new "compact" models use a simple two-resistor approach to represent thermal characteristics of IC packages realistically and efficiently. Simplified models for heat pipes and thermoelectric coolers are also available. A new PCB generator enables automatic calculation of the orthotropic material properties associated with complex multi-layer printed circuit boards, and this treatment is applicable to boards set at any arbitrary angle to the coordinate system.

The comprehensive new library facility includes fans, thermoelectric coolers, thermal interface materials, perforated plates and material properties for most solid materials used in electronic systems - including surface radiation properties.

"The combination of our existing CAD-embedded approach to simulation coupled with the new electronics-specific functionality and comprehensive libraries in EFD Version 8.1 delivers maximum productivity for mechanical designers in the electronics industry and positions us far ahead of our competitors." said Ivo Weinhold, Engineering Fluid Dynamics business manager at Flomerics.

A unique feature of EFD is its ability to detect fluid regions within a CAD solid model and mesh them automatically. In Version 8.1, this powerful feature has been enhanced to detect and close any external gaps or openings in the solid model automatically. This saves the user time and effort by making the definition of the fluid region even easier.

All the above functionality is available as an optional upgrade for users of CAD-embedded versions of EFD, namely EFD.Pro for Pro/ENGINEER, EFD.V5 for CATIAV5, and EFD.Lab for other CAD systems including SolidWorks, Inventor and NX.

EFD 8.1 is available for immediate delivery. Interested readers should send an email to info@flomerics.com to arrange a demonstration or evaluation.

Note to editors: A high-resolution version of this image is available for immediate download at www.flomerics.com/news/gallery

The Model JS was designed for use in applications such as motor-driven products where a self-resetting device coming back on line unexpectedly could have serious consequences. The Model JS provides the next level of safety by incorporating a self-hold feature. In a fault condition, the Model JS opens the circuit, and the device stays open until the user removes power, and allows the unit to cool. The thermostat will then reset, allowing continued operation. Its heat source is completely integrated, eliminating bulky clips and external resistors, allowing for greater reliability and easier installation in tight quarters.

Many abnormal conditions are a result of temporary problems, but whether it's a dirty filter obstructing airflow, or a foreign object stalling the beater-bar of a vacuum cleaner, a safety device which will not automatically reset is often preferred. With a one-shot thermal device, the consumer is faced with a costly repair, or even replacement of the product. Manual reset devices must be made inaccessible, are bulky, and can require disassembly to reset. The Model JS is the consumer-friendly solution. It employs an internal heat source which "latches" the snap-action blade in an open state until power is removed. The user simply unplugs the product, eliminates the problem, and waits for the unit to cool to a safe operating temperature. The Model JS resets, and the product is again ready for use. Simple. Effective. Safe!

Features:

· Snap-action blade for quick-make/quick-make switching action.

· Internal hold-open resistor eliminates bulky clips and external resistors for greater reliability and easier installation in tight quarters.

· Conductive bimetal construction allows fine-tuning to obtain maximum current sensitivity for short-circuit or over-current protection.

· Precision factory pre-set calibration. Tested 100% during manufacturing.

· Available with factory-applied lead wires, or with crimp ferrules for lead attachment by the OEM builder.

· Nominal calibrations from 60°C to 160°C.

Contact Ratings

· Underwriters Laboratories (CUL Rated)

· Temperature Indicating & Regulating Equipment 120VAC/15A Resistive (1800 Watts) 6000 Cycles

· Component Motor Protective Devices 120VAC/15A 240VAC/10A (Suggested Ratings)

International Electrotechnical Commission (IEC)

· Automatic Electrical Controls for Household & Similar Use

· Thermal Motor Protectors

· Temperature Sensing Controls 250VAC/13A (Res.) 5A (Ind.) 10,000 Cycles

VDE

· Thermal Motor Protector - 250 VAC

· Temperature Sensing Control 250 VAC 13A (Res.), 5A (Ind.) 10,000 Cycles

Portage Electric's sales engineers will be happy to discuss your particular application to arrive at the best solution for your needs. Please ontact them through the links above. You are also invited to visit their web site for more information on the full line of Pepi controls.

ArtUSA however, offers the design and engineering assistance to integrate our industrial silencers and sound attenuators into a system solution. As a result our industrial air silencers are custom engineered to satisfy the requirements of each application. Prime candidates for noise control measures are openings into and out of noisy environments. This includes the ventilation of buildings, enclosures, and equipment rooms. Integration of noise control measures, such as silencers and louvers, into the system design requires careful consideration of space constraints, fan selection and aerodynamic pressure losses. Silencers for Blowers, fans, stacks and any machine air exhausts or intakes can be muffled using our large selection of Silencers. We can offer low pressure drop and maximum noise reduction for your specific application.

• Sound Attenuators
• Rectangular Silencers
• Round Silencers
• Acoustical Louvers
• Transfer and Elbow Silencers
• OEM Fan Silencers
• Metal Wall Panels
• Terms and Conditions

Industrial Silencers and Sound Attenuators

• ArtUSA Silencers

ArtUSA Industrial Silencers and sound attenuators are custom engineered to provide:

optimum acoustic performance
superior aerodynamic characteristics
field erection without special equipment
easy maintenance

Reactive silencers, Diffuser-type silencers, Active silencers and Dissipative silencers
Reactive silencers have tuned cavities or membranes and are designed to attenuate low frequency noise from machines. Diffuser-type silencers have perforated pepper pots that slow down velocity and are mainly used for nozels, jet engines etc. Active silencers use microphones and electronics to determine and attenuate noise. Not frequently used Dissipative silencers are widely used for HVAC duct systems.

Silencers are absorptive units designed & fabricated to provide predictable, durable noise control performance for applications such as HVAC system noise, fan noise, plenums, mechanical draft fans, gas turbines, cooling towers and equipment rooms. ArtUSA Silencers and Attenuators allow a large volume of air flow with minimal aerodynamic restrictions, resulting in effective noise insertion losses with static pressure drops of less than 1" w.g. We can ship or install both standard & custom designed units.

INDUSTRIAL SILENCERS
Specifications

1.0 General

Industrial absorptive silencers as shown on the contract drawings or as tabulated shall be installed to reduce sound transmission to occupied spaces. Silencers shall be as specified by customer and manufactured by Kinetics Noise Control - ArtUSA Industries Products Group. Any changes to this specification must be approved by the customer and/or engineer and ArtUSA prior to manufacture.

2.0 Construction

Silencer shall be of the sizes and lengths shown, shall be modular, and shall consist of galvanized, carbon, aluminum or stainless steel outer and interior partitions. Silencers shall be custom designed and manufactured to remain airtight at the specified pressures.

Acoustic fill material shall be glass fiber of a density calculated to provide the published acoustical and aerodynamic performance. Fill material shall be class 1, as tested in accordance with ASTM E-84.

3.0 Acoustic Performance & Certification

Silencers shall exhibit a dynamic insertion loss not less than that shown in the specifications, pressure drop under design airflow shall not exceed that shown, as determined by the manufacturer.

Submittals shall be supplied with Dynamic Insertion Loss, Self Noise Power Levels and Aerodynamic Performance for forward (supply air) and reverse (return air) flow conditions.

ArtUSA Silencers can also be constructed for over-sized and custom applications. These silencers provide extra durability in extreme environments, enable removable baffles (for cleaning or maintenance) & offer additional protection to the absorptive fill from contaminants in the airflow. Construction can range from 18 gauge to 10 gauge outer shells using any material from carbon steel, stainless steel or aluminum.

ArtUSA services the industrial needs for enclosures and intake and/or discharge silencers on blowers, compressors, engines, vacuum pumps and gas vents. Since its inception it has tackled silencing problems covering the entire spectrum of industries and applications. Each inquiry is individually handled by our Sales-Engineering Department which offers 25 years of combined experience with application, design and fabrication of industrial silencers. ArtUSA Silencers is ready and able to solve your silencer problems. In the event pressure drop, silencer envelope or nozzle orientation is your concern, let us know.

Noise Control for Fans & Exhausts – This specialty product is designed for intake or exhaust fans of large equipment. Large equipment usually requires a substantial amount of airflow but untreated fan areas can create, and even spread, noise unnecessarily. These sound attenuators handle the noise without affecting needed airflow - they are often called silencers..

Silencers normally contain one or more passages which are lined with sound absorbing materials, incorporated in structures that protect them from erosion from air flow. To attenuate low frequency sounds, thick baffles widely spaced are used; whereas for high frequency sounds, the best absorption is obtained by using thin baffles closely spaced. Middle frequency sounds can be absorbed by both thick and thin baffles, but intermediate thickness baffles are preferred. Increased attenuation, at times, may be achieved by incorporating bends or elbows into the silencer.

Acoustical Ventilation Systems

ArtUSA noise Control engineers design quiet ventilation systems. Quiet ventilation is needed when breakout noise is a problem or when the ventilation system itself is the dominant noise source.

Industrial equipment creates heat build-up inside an enclosure or facility. Channeling air over the equipment supplies cooling and removes heat. Noise from equipment inside the building escapes through openings that intake and exhaust cooling air. These openings must be silenced if it is not to disturb the surrounding environment.

In some cases, the interior of the building is quiet but noise from the large ventilation fans that bring in and expel air is a problem that must be attenuated.

To treat noise breakout or fan noise, we utilize:

• Quiet fans (axial or radial)
• Acoustically lined ridge vents
• Acoustically lined weatherhoods
• Acoustically lined plenums
• Acoustically lined louvers
• Custom-designed silencers

Silenced Turbine Intakes & Exhausts

ArtUSA builds quiet into turbine intake and exhaust systems as part of our total acoustical facility design, treating intake and exhaust noise with:

• Inlet and exhaust silencers
• Air inlet filtration
• Duct sound abatement

Inlet and Exhaust Silencers

ArtUSA guarantees the quiet performance of the silencers we supply. Our silencers are tested for various DIL's (Dynamic Insertion Losses) to arrive at the silencer design requirements needed to meet the noise level target while maintaining acceptable pressure drops. We installs:

• Intake silencers
• Exhaust silencers in a vertical stack
• Exhaust silencers in horizontal ductwork
• HRSG (Heat Recovery Steam Generator) exhaust stack silencers

Air Inlet Filtration

Our acoustical, mechanical and structural engineers can design complete air inlet silencing systems, including filter houses of various configurations.

Duct Sound Abatement

Breakout noise and vibrations from intake and exhaust ducts can be enormous depending on engine size. To treat duct noise,IES offers acoustical:

• Lagging
• Double wall construction
• Vibration isolation
• Acoustic expansion joints

Gas Turbine Silencers

Once and adequate enclosure is in place the silencing of gas turbine installations in industrial environments is basically a problem of attenuating the noise from the atmospheric inlet and the exhaust openings. In installations in residential and rural areas, the sound from the gas turbine enclosure, auxiliaries, and driven equipment also must be considered in the silencing program. Some degree of attenuation can be attained by natural factors, such as divergence, directivity, air absorption, and duct configurations. Further sound control, however, must be obtained through the use of adequate silencers.

Silencers normally contain one or more passages which are lined with sound absorbing materials, incorporated in structures that protect them from erosion from air flow. To attenuate low frequency sounds, thick baffles widely spaced should be employed for optimal performance; whereas for high frequency sounds, the best absorption is obtained by using thin baffles closely spaced. Middle frequency sounds can be absorbed by both thick and thin baffles, but intermediate thickness baffles are more desirable. Increased attenuation, at times, may be achieved by incorporating bends or elbows into the silencer.

It is important to have experience to determine what combination of absorptive and reactive treatment will most economically produce the required acoustic performance. A turbine exhaust system solution must provide materials and designs that enable highly effective low-frequency noise attenuation and tolerate thermal growth, thus giving long, trouble-free performance. Inlet noise, by contrast, has predominantly high frequency content where an absorptive silencer, in series with the inlet filtration system is required to quiet the turbine. The full system approach--acoustic and aerodynamic--is crucial to optimizing the performance of the turbine and minimizing unnecessary costs. ArtUSA uses its proven design, engineering, manufacturing and management experience to provide a seamless package which offers the highest filtration efficiency and the most effective noise control.

ArtUSA engineers and manufactures noise control and air filtration solutions for gas-fired turbines and diesel engines that are used for stationary and portable power generation applications. ArtUSA has a vast portfolio of successes with applications as small as 100 kilowatts to those as large as several hundred megawatts, and has custom-designed systems installed on all major turbine brands, including GE, Siemens-Westinghouse, Pratt & Whitney and ABB.

An attenuator is an electronic device that reduces the amplitude or power of a signal without appreciably distorting its waveform. Attenuators are usually passive devices made from resistors. The degree of attenuation may be fixed, continuously adjustable, or incrementally adjustable.

Low level attenuators

An attenuator is effectively the opposite of an amplifier, though the two work by different methods. While an amplifier provides gain, an attenuator provides loss, or negative gain.

A fixed electrical attenuator is often called a pad, especially in telephony and audio engineering. The input and output impedances of an electrical attenuator are usually matched to the impedances of the signal source and load, respectively.

A line-level attenuator in the preamp or a power attenuator after the power amplifier uses electrical resistance to reduce the amplitude of the signal that reaches the speaker, reducing the volume of the output. A line-level attenuator has lower power handling, such as a 1/2-watt potentiometer. A power attenuator has higher power handling, such as 10 or 50 watts.

Power attenuators

In audio electronics, attenuators are used as a dummy load by sending all of the power to the resistor and none to the speaker, in order to silence or reduce the output volume of an audio amplifier (for example, a guitar amplifier). Silencing an amplifier is useful for biasing the positive and negative signal crossover, for running bench tests such as measuring the amplifier's maximum output wattage, and for adding line-level effects between a guitar amplifier and a guitar speaker.

Acoustical Panels And Enclosure Systems

Acousti-Curtain/Acoust-Baffles/Acoustic-Lagging

Architectural Acoustical Wall and Ceiling Products

Silencers/Sound Attenuators

Acousti Foams and Composites Foams and Barriers

Acoustical Wall and Ceiling Foam Products

We offer sound solutions and the best noise control products available for: noise control, noise control materials, noise control products, industrial noise control, noise control solutions, noise control product, noise control materials, kinetics noise, kinetic noise control, active noise control, noise barriers, industrial noise, noise pollution control, industrial noise reduction, noise pollution, noise and vibration control, high noise levels, noise reduction, acoustic, acoustical, acoustical consultants, acoustical insulation, acoustical wall panels, acoustic enclosure, acoustic enclosures, acoustic material, acoustic materials, acoustical material, acoustical materials, acoustical enclosures, acoustical enclosure, acoustic products, acoustic panel, acoustic panels, acoustical panel, acoustical panels, acoustic wall panel, acoustic wall panels, acoustical wall panel, acoustical wall panels, acoustic foam, acoustic foams, acoustical foam, sound deadening, sound control, acoustical foams, acoustic sound control, acoustical sound control, sound barriers, sound barrier, sound damping, sound control products, sound absorber, sound deadener, sound absorbers, sound dampening, sound reduction, sound absorber, sound isolation, soundproofing foam, soundproof, sound proof, wall soundproofing, soundproof wall, soundproof walls, soundproofing insulation, soundproofing a room, soundproofing studio, sound proofing, sound insulation, vibration isolators, vibration isolation, vibration isolation table.

A host of innovative features built into ABB's all-new component drives line, model ACS150, means very fast, trouble-free installation, start-up and worry-free operation for users - no specialized drive knowledge required!

Offered in a 0.5 - 5.0 horsepower range, with a +10VDC output potentiometer reference, the drives' user interface incorporates the same logic as that found in higher-powered ABB drives. The integrated control panel is designed for ease of use, with a backlit LCD display and ergonomically designed keypad buttons. Motor speed can be set using the integral potentiometer – the most intuitive frequency control method for many users.

Easy, Easy, Easy!

"Ease of use distinguishes everything these drives offer - from unpacking the box to quickly selecting parameters via the panel, or adjusting speed with the potentiometer," said Jukka Nurmi, product line manager, ABB Inc., Low Voltage Drives. "It works like a variable-speed starter, and is ideal for new installations, or easy integration into existing panels, replacing contactors and motor starters. All the features are designed to work with the natural intuition users already have in setting up and operating electronic devices."

And, for machine and panel builders, there are built-in features and programming technology that makes multiple-unit production of machines and panels fast, easy - and more profitable, he said.

Typical applications for the new drives include pumps, fans, conveyors, packaging machines, centrifuges, mixers, and a host of OEM machines built for the food and beverage, material handling, textile, printing, rubber and plastics, and woodworking industries.

New FlashDrop Technology Replicates Parameters in Seconds – No Power to Drive Needed

ABB's patented FlashDrop technology, an option with the ACS150 drives, makes parameter selection and setting easy and quick. Critical parameters can be quickly and safely downloaded into the new drives, using a hand-held FlashDrop unit.

"The FlashDrop can store several parameter sets and, for extra convenience, each set can be named to clearly show the associated application," Nurmi noted. "This parameter setting can be done without a power connection to the drive; in fact, it is not even necessary to unpack the drive. The FlashDrop probe simply is inserted into the receptacle on the face of the drive."

This makes it easy for distributors to pre-configure drives prior to delivery - and helps OEMs replicate exact parameter sets across machines, easing further the machine start-up process for customers.

Long and short menus are available via the control panel, with the parameters in the short menu selected to meet the requirements of 80 percent of basic applications. FlashDrop also allows the menu structure to be customized.

Parameters can be set and hidden, changing the appearance of the menu for faster set up and configuration. This makes it easier for the end user to use the machine, and also ensures that they only can adjust the parameters that the machine builder wants them to. The FlashDrop unit can be connected to a PC for creating and editing parameters using the interface, and to tap into the PC's additional storage capacity. FlashDrop is quick and convenient to use, and no specialized knowledge is required.

"This technology respects the reality that end users need the OEM machines they purchase to get into operation very very quickly, and start-up for most of these applications should not require a specialist," Nurmi said.

Compact and Cabinet Compatible; Filter, Chopper, Built In

The new ACS150 drives incorporate both a built-in EMC filter and a braking chopper as standard. The 2nd environment filter complies with IEC61800-3 for usage of the drives on machines and applications around the world, and the chopper gives users the freedom to choose their resistor supplier.

Compact design distinguishes the drive line, too – a critical consideration on machines and panels where real estate is a premium, according to Nurmi. The drives are designed for convenient installation in control cabinets and optimal use of space within them. All drives across the range feature unified height and depth, with only the width changing for different power ratings. As a result, all screw holes for mounting any of the drives are located at the same height, and cable trays can be mounted horizontally. In addition to mounting screws, the drives can be mounted using a DIN rail. They can be mounted side-by-side or, when space is limited, they can be mounted with one side to the back of the cabinet.

"For machine builders, this small space requirement, and the ability to maintain a horizontal plane across all horsepowers, makes product design and machine construction easier," Nurmi said.

And Fast Wire-up

The supply and I/O connections for ABB's new component drives are located side-by-side at the bottom of the front panel for easy access. The connections are clearly marked and include one analog and five digital inputs (of which one can be configured for pulse train), and one relay output.

The drives' own housing provides IP20 protection. They are available for 1-phase and 3 phase 240V operation, in a 0.5 to 3 Hp range; and in 3-phase 480V, from 0.5 to 5 Hp. ABB Inc., Automation Technologies, Automation Products, Low Voltage Drives, is the world's largest manufacturer of electric motors and drives. In the USA, an integrated channel of sales representatives, distributors, and system integrators allow ABB, New Berlin, Wisconsin, to supply a complete line of energy-efficient electric drives, motors and engineered drive systems to a wide range of industrial and commercial customers. Products manufactured include AC and DC variable speed drives for electric motors from 1/8th through 135,000 HP, and application-specific drive system solutions to meet diverse customer needs (http://www.us/drives).

ABB (www.abb.us) is a leader in power and automation technologies that enable utility and industry customers to improve performance while lowering environmental impact. The ABB Group of companies operates in around 100 countries and employs about 102,000 people. The company's U.S. operations employ about 9,000 in manufacturing and other facilities in 40 states.