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Techtop Motors SD3-449TC-4-RR-E-250 - TechTop SD3-449TC-4-RR-E-250 — 250 HP Severe Duty IEEE 841 motor, 449TC frame, 4 POLE (1800), 460V 60HZ, TEFC, IE3 - NEMA Premium
Techtop Motors

SD3-449TC-4-RR-E-250


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Overview

The Techtop Motors SD3-449TC-4-RR-E-250 is a 250 HP severe duty motor engineered to meet IEEE 841 standards, ensuring exceptional reliability in demanding industrial applications. This motor features a robust 449TC frame size and a Totally Enclosed Fan Cooled (TEFC) enclosure, providing IP56 protection against dust and water ingress. Operating at 460V and 60Hz with 4 poles, it delivers a rated speed of 1785 RPM and a full load torque of 997 ft-lb. Engineered for efficiency, this motor boasts an IE3 - NEMA Premium efficiency level with a nominal efficiency of 96.2% and a nominal power factor of 0.89 cosθ. The insulation class is F, and it includes tropicalization for enhanced durability in humid environments. The motor is rated for continuous duty and can operate in ambient temperatures up to 40°C at an altitude of 1000 meters. It is also Class I, Division 2, Group A, B, C, D hazardous location rated, making it suitable for potentially explosive atmospheres. Key specifications include a service factor of 1.15, a temperature rise of 72.2°C at full load, and a KVA code of G. The motor is equipped with shaft grounding for protection against electrical discharge. Bearings are C3 rated, with DE side 6319 and NDE side 6319. The cable entry size is 1.25 inches, and the feet are removable. This model is UL and CSA certified, with file numbers 323353 and 224693 respectively, and meets DOE requirements. The coating is 7024 Graphite Grey. Manufacturer: Techtop Motors SKU: SD3-449TC-4-RR-E-250 UNSPSC Code: 26101112
  • 250 HP Severe Duty IEEE 841 Motor
  • 449TC Frame, TEFC Enclosure (IP56)
  • IE3 - NEMA Premium Efficiency (96.2%)
  • Class I Division 2 Hazardous Location Rated
  • 460V, 60Hz, 4 Pole, 1785 RPM, 997 ft-lb Torque

Specifications

Color
Red
Frequency
60 Hz
Mounting Type
TEFC
Nema Rating
NEMA Premium
Poles
4
Series
SD3
Size
449TC
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.