Authorized Techtop Motors Distributor
Techtop Motors SD3-449T-4-RR-E-300 - TechTop SD3-449T-4-RR-E-300 — 300 HP Severe Duty IEEE 841 motor, 449T frame, 4 POLE (1800), 460V 60HZ, TEFC, IE3 - NEMA Premium

Techtop Motors SD3-449T-4-RR-E-300 TechTop SD3-449T-4-RR-E-300 — 300 HP Severe Duty IEEE 841 motor, 449T frame, 4 POLE…


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3D CAD Model (STEP)Specification SheetManufacturer Product Website

Contact for Pricing

Call (262) 252-1600 or email [email protected] for pricing and availability.

Overview

The Techtop Motors SD3-449T-4-RR-E-300 is a 300 HP Severe Duty IEEE 841 motor engineered for continuous operation in harsh industrial environments. This 449T frame motor delivers 1785 RPM at 460V, 60Hz, 3-phase power with a rated current of 328 Amps. Key electrical specifications include a nominal efficiency of 96.2% (IE3 - NEMA Premium), power factor of 0.89 cosθ, and service factor of 1.15. The motor features Class F insulation with tropicalization for enhanced durability in high-temperature and humid conditions. Mechanical components include C3-rated bearings on both drive-end (DE) and non-drive-end (NDE) sides, a 1.25" removable cable entry, and shaft grounding for safety in hazardous locations (Class 1, Division 2, Groups A-D). Performance metrics include a full load torque of 1192 Ft-Lb, locked rotor torque of 224% FL, breakdown torque of 283% FL, and pull-up torque of 254% FL. The motor operates at a temperature rise of 83.5°C at full load with a rated ambient of 40°C and altitude up to 1000 meters. Its 7024 Graphite Grey coating provides corrosion resistance, while the double-drilled mounting design simplifies installation.
  • 300 HP Severe Duty IEEE 841 motor with 449T frame
  • 460V, 60Hz, 3-phase, 1785 RPM, 328A rated current
  • IE3 - NEMA Premium efficiency (96.2%), 0.89 power factor
  • C3 bearings, shaft grounding, 1.25" removable cable entry
  • Class 1 Division 2 Hazardous Location Rated (Groups A, B, C, D)

Specifications

Color
Graphite Grey
Current Rating
328 A
Frequency
60 Hz
Ip Rating
IP56
Nema Rating
NEMA Premium
Poles
4
Series
SD3
Size
449T
Voltage Rating
460 V

Frequently Asked Questions about Techtop Motors

What certifications and standards do Techtop Motors products comply with?

Techtop Motors products comply with NEMA Premium® efficiency standards, IEEE 841 for severe duty applications, and MG1 Part 31 for safe VFD use. Additionally, they feature IP55 ingress protection and are constructed with corrosion-resistant materials, ensuring durability and reliability in industrial environments.

What is Techtop Motors's warranty policy?

Techtop Motors offers a 36-month warranty from the date of purchase on their electric motors, ensuring protection against defects in materials and workmanship. This warranty reflects Techtop's commitment to quality and customer satisfaction.

What industries and applications are Techtop Motors products used for?

Techtop Motors products are utilized across a wide range of industries, including manufacturing, processing, agriculture, HVAC, and heavy-duty applications. Their motors are designed for powering machinery such as pumps, fans, conveyors, and compressors, ensuring reliable performance and energy efficiency in demanding environments.

What technical support does Techtop Motors offer?

Techtop Motors offers comprehensive technical support, including pre-sale and post-sale assistance through a fully trained customer service team. Our support extends to application-driven engineering, ensuring that customers receive expert guidance tailored to their specific needs. Additionally, we provide access to live inventory, electrical and dimensional data, and downloadable brochures via our website.

What are the main product lines offered by Techtop Motors?

Techtop Motors offers a diverse range of industrial electric motors, including NEMA Premium Efficiency motors, IEEE 841 Severe Duty motors, JM/JP Pump motors, and Explosion Proof motors. Their product lines also feature options in both cast iron and aluminum constructions, as well as specialized motors for applications like cooling towers and washdown environments. With horsepower ratings ranging from 1/8 to 500 HP and various frame sizes, Techtop Motors is equipped to meet a wide array of industrial automation needs.

What are the key features of Techtop Motors products?

Techtop Motors products feature NEMA PREMIUM® operating efficiency, ensuring reduced energy costs and enhanced performance. They are designed with hand-inserted lap wound stators for smooth operation, true copper windings for reduced loss, and full cast iron construction for durability. Additional features include IP55 ingress protection, automatic moisture drainage, and a 36-month warranty, making them ideal for demanding industrial applications.

What communication protocols do Techtop Motors products support?

Techtop Motors products support a comprehensive range of communication protocols including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU integrated as standard. These protocols facilitate efficient communication and integration within industrial automation systems, enhancing system performance and diagnostics.

What environmental ratings do Techtop Motors products have?

Techtop Motors products feature environmental ratings such as IP55 and IP56, providing robust protection against dust and water ingress. These ratings ensure reliable performance in various industrial environments, with options for oil seals and labyrinth seals for enhanced durability.

What accessories are available for Techtop Motors products?

Techtop Motors offers a variety of accessories for their products, including C & D flanges for versatile mounting options, aluminum and rolled steel C-face conversion kits, and multi-mount removable mounting feet for easy installation. Additionally, their motors feature color-coded oversized lead wires for simplified connections and automatic grease purge systems to prevent over-greasing, enhancing maintenance efficiency.

How are Techtop Motors products typically installed?

Techtop Motors products are designed for straightforward installation, featuring multi-mount removable mounting feet that allow for easy repositioning of the conduit box. Their lightweight designs facilitate handling in difficult-to-reach locations, while color-coded oversized lead wires simplify electrical connections. Additionally, the motors are equipped with features such as automatic grease purge and double lip shaft seals, ensuring reliable operation and maintenance ease.