Authorized Techtop Motors Distributor
Techtop Motors GR3-CI-TF-256T-2-BR-D-20 - TechTop GR3-CI-TF-256T-2-BR-D-20 — 20 HP (GR3) Three Phase Cast Iron motor, 256T frame, 2 POLE (3600), 230/460V 60HZ, 230/460 50HZ, TEFC, IE3 - NEMA Premium

Techtop Motors GR3-CI-TF-256T-2-BR-D-20 TechTop GR3-CI-TF-256T-2-BR-D-20 — 20 HP (GR3) Three Phase Cast Iron motor, 256T frame…

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3D CAD Model (STEP)Specification SheetManufacturer Product Website

Contact for Pricing

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

Overview

The TechTop GR3-CI-TF-256T-2-BR-D-20 is a 20 HP, three-phase, 256T frame cast iron motor designed for industrial applications requiring high efficiency and reliability. Rated at 3550 RPM under full load, this motor operates at 230/460V (50/60Hz) with a service factor of 1.25, providing robust performance in demanding environments. The motor features a totally enclosed fan-cooled (TEFC) enclosure with IP55 rating, ensuring protection against dust and water ingress. With a nominal efficiency of 91% (IE3 - NEMA Premium), it meets DOE and CSA standards, delivering energy savings and reduced operational costs. The motor's tropicalized construction resists harsh conditions, while its 7024 graphite grey coating enhances corrosion resistance. Certified for Class 1, Division 2, Groups A-D hazardous locations, this motor is suitable for chemical, oil & gas, and manufacturing applications. Key specifications include a locked rotor torque of 187.1% of full load, breakdown torque of 302%, and a temperature rise of 52.2°C at full load. Bearings are 6309 C3 on both DE and NDE sides, with a removable cable entry of 1.25 inches. The motor weighs approximately 293 lbs and operates at a rated ambient temperature of 40°C up to 1000 meters altitude. UL/CSA file numbers 323353, 224693, and 096A confirm compliance with North American safety standards. Ideal for pumps, compressors, and heavy machinery, the GR3-CI-TF-256T-2-BR-D-20 combines durability, efficiency, and compliance in a single package.
  • 20 HP, 3550 RPM, 230/460V (50/60Hz) three-phase motor
  • IE3 efficiency (91%) with 1.25 service factor for energy savings
  • TEFC enclosure (IP55) with graphite grey corrosion-resistant coating
  • UL/CSA certified, Class 1 Div 2 hazardous location approved
  • 256T frame, 6309 C3 bearings, 293 lbs, tropicalized construction

Specifications

2E
10 in
A
12.4 in
AA
1 1/4 in
AB
8.82 in
BA
4.25 in
C
25.8 in
D
6.25 in
E
5 in
ES
2.91 in
F1
10.25 in
F2
12 in
H
0.83 in
N-W
4 in
O
12.5 in
P
12.4 in
R
1.416 in
S
0.375 in
U
1.625 in

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.