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Hammond Power 2909B3. - Motor Starting Autotransformers 2A-series, 2 Coil, 240V, 300 HP

Hammond Power 2909B3. Motor Starting Autotransformers 2A-series, 2 Coil, 240V, 300 HP

UPC: 803423000127


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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Hammond Power 2909B3 is a 2A-series motor starting autotransformer designed for medium-duty industrial applications. Operating at 240V, this 2-coil unit supports motors up to 300 HP. It is engineered to reduce starting inrush current, mitigating electrical system stress and potential disruptions common with larger motor starts. This autotransformer is a key component in motor controllers, providing reduced-voltage starting during the initial sequence. It is manufactured in accordance with NEMA Industrial Controls and Systems, Publication No. ICS-1970. The 2A-series is suitable for drive loads such as pumps, compressors, conveyors, and fans. Standard taps are available at 50%, 65%, and 80% for flexible voltage selection. Termination is facilitated by heavy solid copper lugs with holes, ensuring reliable connections. Optional thermostats can be integrated for enhanced protection. This autotransformer is UL Listed (File: E61431) and CSA Certified (File: LR3902), operating at a frequency of 60 Hz with an insulation system rated at 220°C. The open core and coil construction is designed for three-phase operation and is connected in an open 'V' configuration, which may result in slightly unbalanced phase voltages compared to a three-coil design.
  • 2A-series motor starting autotransformer
  • 240V operating voltage
  • Supports up to 300 HP motor loads
  • 2-coil, three-phase design
  • NEMA ICS-1970 compliant for medium-duty service

Specifications

Application
Motor loads such as pumps, compressors, conveyers, and fans.
Connection
Copper Pads
Control
Supplied by others
Cooling
Convection Air Cooled
Enclosure
Core and Coil
Frequency Rating
60 HZ
Input Voltage
240 V
Insulation
220 Deg C Class
Phase
3
Power Factor
Supplied by others
Special Features
2 Coil MSAT's are integrated with controls for reduced votlage starts, optional thermal switches are available.
Standard
csa, ul
Type
Autotransformer > Motor Starting > 2 Coil
Wattage
300 HP
Motor Starting Autotransformers 3A-series, 3 Coil, 240V, 300 HP

3009B3.

Motor Starting Autotransformers 3A-series, 3 Coil, 240V, 300 HP
PSR FAN 60-105A

PSR-FAN60-105A

PSR FAN 60-105A
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2909D16.

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Motor Starting Autotransformers 2A-series, 2 Coil, 480V, 600 HP

2909C6.

Motor Starting Autotransformers 2A-series, 2 Coil, 480V, 600 HP
Motor Starting Autotransformers 3A-series, 3 Coil, 600V, 1200 HP

3009D12.

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Motor Starting Autotransformers 2A-series, 2 Coil, 480V, 125/150 HP

2909C1.5

Motor Starting Autotransformers 2A-series, 2 Coil, 480V, 125/150 HP
Motor Starting Autotransformers 3A-series, 3 Coil, 600V, 1000 HP

3009D10.

Motor Starting Autotransformers 3A-series, 3 Coil, 600V, 1000 HP

Frequently Asked Questions

What is the purpose of a motor starting autotransformer?

It limits the starting inrush current for larger motors or motors with connected loads, preventing disruption to the electrical system.

What are the available voltage options for these autotransformers?

Standard units are available for 240V, 480V, and 600V. Other voltages and 50Hz units are available upon request.

What are the standard tap settings available on these units?

All units have taps at 50%, 65%, and 80% of the voltage.

What is the insulation system rating for these autotransformers?

The insulation system for these units is rated at 220°C.

Are optional thermostats available for these autotransformers?

Yes, optional thermostats are available. They provide a signal when coil temperatures exceed safe operating conditions.

What is the frequency rating for the standard autotransformers?

The standard autotransformers are rated for a frequency of 60 Hz.

What are the UL and CSA certifications for these autotransformers?

These autotransformers are UL Listed under File E61431 and CSA Certified under File LR3902.

What type of termination is provided on these autotransformers?

They feature heavy solid copper lugs with holes for reliable termination.

What types of motor loads are these autotransformers designed for?

They are designed for medium duty service including drive loads such as pumps, compressors, conveyors, and fans.

What is the difference between two-coil and three-coil autotransformers?

Two-coil units are for starters with 2 contacts in an open 'V' configuration, while three-coil units are for starters with 3 contacts in a 'Wye' configuration for balanced voltages.

Frequently Asked Questions about Hammond Power

What certifications and standards do Hammond Power products comply with?

Hammond Power products are certified to UL (Underwriters Laboratories) and CSA (Canadian Standards Association) standards in North America. Our products meet rigorous safety and performance requirements, with many items classified as UL Listed Products or Recognized Components. We also comply with international certifications including China Compulsory Certification (CCC), C-Tick for Australian EMC requirements, and ANCE for Mexico.

What is Hammond Power's warranty policy?

Hammond Power provides a standard one-year warranty on all products, covering defects in workmanship and materials. Products will be repaired or replaced free of charge if found defective upon factory inspection. The warranty does not cover damage from improper handling, incorrect application, or faulty installation.

What industries and applications are Hammond Power products used for?

Hammond Power products are engineered for critical industrial and commercial applications across multiple sectors, including petrochemical, mining, construction, renewable energy, e-mobility, power storage, and microgrids. Their comprehensive product range of dry-type transformers, power quality solutions, and magnetic components enables electrical distribution and electrification in diverse industrial environments worldwide.

What are the main product lines offered by Hammond Power?

Hammond Power Solutions offers a comprehensive range of dry-type and liquid-filled transformers for industrial and commercial applications. Their primary product lines include power transformers for renewable energy, e-mobility, data centers, microgrids, and industrial settings. The company provides both standard and custom-designed transformer solutions that are critical to electrical distribution networks across multiple industries.

What are the key features of Hammond Power products?

Hammond Power products feature advanced dry-type and liquid-filled transformers engineered for diverse industrial applications, with capabilities spanning renewable energy, e-mobility, data centers, microgrids, and industrial/commercial sectors. Key features include high-performance electrical steel laminations, windings available in copper or aluminum, advanced insulation systems (VPI or Cast Resin), Basic Impulse Level ranges from 10 kV to 250 kV, and custom design capabilities with over 3,000 unique transformer designs engineered annually.

What environmental ratings do Hammond Power products have?

Hammond Power offers industrial enclosures with comprehensive environmental ratings, including UL/cUL 508A ratings of Type 1, 2, 3, 4, 4X, 12, and 13. Their products meet IEC 60529 IP66 standards, providing robust protection against dust, water ingress, and harsh environmental conditions. Specific ratings vary by product series, with options ranging from indoor Type 1 enclosures to outdoor-rated Type 4X enclosures suitable for challenging industrial environments.

What technical support does Hammond Power offer?

Hammond Power Solutions provides comprehensive technical support through multiple channels. Customers can access technical resources via phone support in Canada, the United States, Mexico, and internationally, with toll-free numbers and regional contact points. Their technical team offers personalized assistance for custom design inquiries, helping customers find standard transformer and power solutions or develop specialized electrical products for various industrial applications.

What communication protocols do Hammond Power products support?

Hammond Power products support multiple industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, and CANopen. These protocols enable flexible connectivity across industrial automation platforms, supporting various network topologies and high-speed data transmission for comprehensive industrial control and monitoring applications.

What accessories are available for Hammond Power products?

Hammond Power offers a comprehensive range of accessories for industrial electrical components, including HME Series handles with key locking and padlocking options, door stop kits, light kit mounting brackets, and standard hardware like mounting screws and washers. These accessories are designed to enhance functionality and installation flexibility across their product lines.

How are Hammond Power products typically installed?

Hammond Power transformers are typically chassis-mounted using precise mounting hole centers and dimensions specific to each product series. Installation involves selecting the appropriate primary voltage configuration, securing the transformer to a mounting surface using the specified mounting holes, and connecting terminals according to the product's schematic. Most Hammond Power transformers feature multiple terminal options like solder or quick-connect terminals, allowing flexible and straightforward installation in industrial control and power distribution applications.