
Hammond Power 2909B5. Motor Starting Autotransformers 2A-series, 2 Coil, 240V, 500 HP
UPC: 803423000141
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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
- 2-Coil Autotransformer Design
- 240V Operating Voltage
- Rated for 500 HP Motor Loads
- Reduces Motor Inrush Current
- Durable Construction for Industrial Use
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 |
Poles | 2 |
Poles | 2 Coil |
Power Factor | Supplied by others |
Series | 2A-series |
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 |
Voltage Rating | 240 V |
Wattage | 500 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 standard taps are available on these autotransformers?
All units have taps available at 50%, 65%, and 80% of the voltage.
What are the termination types for these autotransformers?
They feature heavy solid copper lugs with holes for reliable termination.
Are thermostats available as an option for these units?
Yes, optional thermostats are available. They provide a signal when coil temperatures exceed safe operating conditions.
What is the insulation system rating for these autotransformers?
The insulation system for both two-coil and three-coil units is rated at 220°C.
What is the operating frequency for these autotransformers?
These autotransformers operate at a frequency of 60 Hz.
What are the UL and CSA certification details?
They are UL Listed under File E61431 and CSA Certified under File LR3902.
What types of 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.
What is the HP range for two-coil and three-coil autotransformers?
Two-coil units range from 20 to 1600 HP, and three-coil units range from 25 to 1600 HP.
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.

