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

Name: 300 HP Severe Duty IEEE 841 TEFC motor, 449TC frame, 4-pole, 460V, 60Hz, IE3 NEMA Premium efficiency.
Brand: Techtop Motors
SKU: SD3-449TC-4-RR-E-300
Availability: InStock

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3D CAD Model (STEP)Specification Sheet Manufacturer Product Website

Contact for Pricing

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

Overview

This 449TC frame, 4-pole (1800 RPM) motor delivers 300 HP at 460V, 60Hz, with a nominal efficiency of 96.2% (IE3 NEMA Premium). The Totally Enclosed Fan-Cooled (TEFC) enclosure with IP56 rating ensures reliable performance in harsh environments, protecting against dust and water ingress. Key electrical specifications include a rated current of 328 Amps, service factor of 1.15, and a breakdown torque of 283%. The motor provides a full load torque of 1192 Ft-Lb and a locked rotor torque of 224%, enabling robust starting capability for heavy-duty applications. Tropicalization ensures reliable operation in high-humidity or corrosive environments. Mechanical robustness is a hallmark of this motor, featuring 6319 C3 bearings on both the drive end (DE) and non-drive end (NDE) sides for extended bearing life. The shaft grounding system mitigates electrical discharge damage, while the graphite grey 7024 coating provides corrosion resistance. The removable feet design simplifies installation and maintenance, and the 1.25-inch cable entry accommodates standard wiring configurations. With a rated altitude of 1000 meters and an ambient temperature rating of 40°C, this motor is engineered for global deployment in industrial facilities, water treatment plants, mining operations, and manufacturing plants where reliability and efficiency are critical.

300 HP output at 460V, 60Hz, 4-pole (1800 RPM)
IE3 NEMA Premium efficiency (96.2%) with 328A rated current
TEFC enclosure with IP56 rating for harsh environments
Service factor 1.15, breakdown torque 283%, locked rotor torque 224%
6319 C3 bearings, shaft grounding, graphite grey 7024 coating

Frequently Asked Questions

What is the rated speed of the SD3-449TC-4-RR-E-300 motor?

The rated speed of the motor is 1785 revolutions per minute (r/min) at full load.

What type of enclosure does this motor have?

The motor features a Totally Enclosed Fan-Cooled (TEFC) enclosure with an IP56 rating for protection against dust and water.

What is the service factor of the SD3-449TC-4-RR-E-300?

The service factor is 1.15, allowing the motor to handle temporary overloads without damage.

What certifications does this motor have?

The motor is certified to UL, CSA, and DOE standards, ensuring compliance with safety and efficiency regulations.

What is the hazardous location rating for this motor?

The motor is certified for Class 1 Division 2 Groups A, B, C, and D hazardous locations.

What is the rated ambient temperature for this motor?

The motor is rated for an ambient temperature of 40 degrees Celsius.

What is the breakdown torque of the SD3-449TC-4-RR-E-300?

The breakdown torque is 283% of the full load torque.

What type of bearings are used in this motor?

The motor uses 6319 C3 bearings on both the drive end and non-drive end sides.

What is the efficiency level of this motor?

The motor has a nominal efficiency of 96.2%, meeting IE3 NEMA Premium standards.

What is the rated altitude for this motor?

The motor is rated for operation at altitudes up to 1000 meters.

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.