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Techtop Motors GR3-CI-TF-365T-4-BR-D-75 - TechTop GR3-CI-TF-365T-4-BR-D-75 — 75 HP (GR3) Three Phase Cast Iron motor, 365T frame, 4 POLE (1800), 230/460V 60HZ, 230/460 50HZ, TEFC, IE3 - NEMA Premium

Techtop Motors GR3-CI-TF-365T-4-BR-D-75 TechTop GR3-CI-TF-365T-4-BR-D-75 — 75 HP (GR3) Three Phase Cast Iron motor, 365T frame…


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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

Techtop Motors GR3-CI-TF-365T-4-BR-D-75 is a 75 HP, three-phase, cast iron TEFC (Totally Enclosed Fan-Cooled) motor engineered for heavy-duty industrial applications. This NEMA Premium efficiency motor (IE3) delivers 95.4% nominal efficiency, ensuring optimal energy savings and compliance with DOE regulations. The motor operates at 230/460V, 60Hz (230/460V, 50Hz optional), with a rated speed of 1780 RPM and a service factor of 1.15 for reliable performance under varying loads. Key electrical specifications include a rated current of 167.2A (230V) / 83.6A (460V), full-load torque of 224.23 ft-lb, and a breakdown torque of 297% of full load. The motor features NEMA Design A characteristics, a KVA code K, and an insulation class F with tropicalization for enhanced durability in harsh environments. Certified to UL, CSA, and DOE standards, this motor is ideal for Class 1, Division 2, Groups A-D hazardous locations. Mechanical robustness is ensured with 6313 C3 bearings on both DE (Drive End) and NDE (Non-Drive End) sides, a graphite grey 7024 coating, and a removable 1.25-inch cable entry. The motor’s IP55 rating provides protection against dust and water ingress, while its 823 lb weight and 365T frame size offer compatibility with standard industrial mounting configurations. Applications include pumps, fans, compressors, conveyors, and other heavy machinery requiring continuous duty operation. The dual-voltage wiring (12-lead) allows flexible installation in both 230V and 460V systems. With a rated ambient temperature of 40°C and an altitude rating of 1000 meters, this motor is built to perform reliably in demanding industrial settings. Order SKU: GR3-CI-TF-365T-4-BR-D-75. Manufacturer part number: TFC365T75U4B. Contact Techtop Industries at (678) 436-5540 for technical support or custom configurations.
  • 75 HP, 365T frame, TEFC enclosure for heavy-duty industrial use
  • 95.4% nominal efficiency (IE3 NEMA Premium) for energy savings
  • Dual-voltage operation: 230/460V, 60Hz (230/460V, 50Hz optional)
  • UL, CSA, and DOE certified; Class 1, Div 2, Groups A-D hazardous location rated
  • NEMA Design A, IP55 protection, tropicalized for harsh environments

Specifications

Frequency
60 Hz / 50 Hz
Ip Rating
TEFC
Material
Cast Iron
Nema Rating
NEMA Premium
Poles
4 POLE (1800)
Series
GR3
Size
365T
Voltage Rating
230/460 V

Frequently Asked Questions

What is the rated motor output power for this model?

The rated motor output power for the GR3-CI-TF-365T-4-BR-D-75-230|460-60 is 75 HP.

What are the available voltage options for this motor?

This motor is available in 230V or 460-60V for 3-phase operation.

What is the enclosure type and IP rating of this motor?

The motor has a TEFC (Totally Enclosed Fan Cooled) enclosure with an IP rating of 55.

What is the approximate weight of the motor?

The approximate weight of this motor is 823 lbs.

What is the insulation class and service factor of this motor?

The insulation class is F and the service factor is 1.15.

What is the nominal efficiency and power factor?

The nominal efficiency is 95.4% and the nominal power factor is 0.88 cosθ.

What is the full load torque in Ft-Lb?

The full load torque is 224.2304 Ft-Lb.

What is the temperature rise at full load?

The temperature rise at full load is 62.5 °C.

What are the hazardous location classifications for this motor?

This motor is suitable for Class 1, Div 2, Grp A,B,C,D hazardous locations.

What is the rated ambient temperature and altitude for operation?

The rated ambient temperature is 40°C and the rated altitude is 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.