Techtop Motors GR3-CI-TF-326T-4-BR-F-50 TechTop GR3-CI-TF-326T-4-BR-F-50 — 50 HP (GR3) Three Phase Cast Iron motor, 326T frame…

Name: Techtop GR3-CI-TF-326T-4-BR-F-50: 50 HP, 326T frame, 3-phase, 575V, TEFC, IE3 motor.
Brand: Techtop Motors
SKU: GR3-CI-TF-326T-4-BR-F-50
Availability: InStock

Documents & Media

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

Techtop Motors GR3-CI-TF-326T-4-BR-F-50 is a 50 HP (37.3 kW) three-phase cast iron motor designed for industrial applications requiring high efficiency and reliability. Built to NEMA Premium IE3 standards, this motor delivers 94.5% nominal efficiency at 40°C ambient, ensuring optimal energy savings and reduced operating costs. The 326T frame size provides robust construction with a totally enclosed fan-cooled (TEFC) enclosure, rated IP55 for protection against dust and water ingress. Key electrical specifications include dual-voltage operation (230/460V, 60Hz), 115.2/57.6A rated current, and a service factor of 1.25 for temporary overload capacity. The motor operates at 1780 RPM with a full-load torque of 148.7 ft-lb, making it suitable for continuous duty applications. Certified to UL, CSA, and DOE standards, this motor meets Class 1, Division 2 hazardous location requirements for safe operation in explosive atmospheres. Mechanical features include double shielded bearings (6312 C3) for extended bearing life, graphite grey 7024 coating for corrosion resistance, and a removable 1.25" cable entry for flexible wiring. The motor’s tropicalization ensures reliable performance in humid or corrosive environments. With a breakdown torque of 286% and pull-up torque of 203%, it provides strong starting capability for demanding loads. Applications include pumps, fans, compressors, conveyors, and machine tools in industrial, commercial, and hazardous environments. The motor’s NEMA Design B performance and IE3 efficiency make it ideal for energy-conscious facilities seeking compliance with DOE regulations. Backed by Techtop’s engineering expertise, this motor delivers dependable operation with minimal maintenance requirements.

50 HP (37.3 kW) output, 326T frame, 3-phase, 575V operation
94.5% nominal efficiency (IE3 NEMA Premium), 1.25 service factor
TEFC enclosure (IP55), Class 1 Div 2 hazardous location rated
Dual-voltage (230/460V, 60Hz), 115.2/57.6A rated current
UL, CSA, DOE certified with graphite grey corrosion-resistant coating

Frequently Asked Questions

What is the rated motor output power for this model?

The rated motor output power for the GR3-CI-TF-326T-4-BR-F-50-575-60 is 50 HP.

What is the voltage and frequency rating for this motor?

The rated motor voltage is 575-60 Volts - HZ for 3 phase operation.

What is the full load current for this motor?

The rated motor current at full load is 46.08 Amps.

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

The motor has a TEFC enclosure and an IP rating of 55.

What is the service factor for this motor?

The service factor for this motor is 1.25.

What is the insulation class of the motor windings?

The insulation class for this motor is Class F.

What is the nominal efficiency and power factor?

The nominal efficiency is 94.5% and the nominal power factor is 0.86 cosθ.

What is the full load torque in Ft-Lb?

The full load torque is 148.70016 Ft-Lb.

What is the temperature rise at full load?

The temperature rise at full load is 61.1 °C.

What are the hazardous location ratings for this motor?

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

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.