What is a Variable Frequency Drive?
A variable frequency drive is an electronic device that allows you to start, stop, and control the speed of a three phase motor. It is also a motor starter as it is equipped with overload protection. Read more »
What is the difference between a 'new surplus' motor and a 'factory new' motor?
Our New Surplus electric motors and drives are new and unused overstock or discontinued items offered at lower prices and come with our 90-day warranty.
Variable frequency drives (VFDs or inverters) now play an important part in major industry.
Within the last 10 years they have been perfected to control and vary the speed of 3 phase electric motors. They serve many purposes, besides speed control. Homeowners and hobbyist alike, who have lathes or milling machines with a 3 phase motor, usually don't have 3 phase power to operate. These VFDs (instead of using a rotary phase converter) can now be used to convert single phase power to 3 phase power. Read more »
Techtop Motor Manuals & Catalogs Installation manuals, wiring diagrams, VFD guides and product line catalogs for Techtop electric motors — GR3/XR3 cast iron, aluminum, Cobra, ODP, washdown, IEEE 841, explosion proof, pump, farm duty and more. Need help matching a motor? Call us at 800-469-3110.
Instruction Guides & Manuals
Installation & Maintenance Techtop Installation & Maintenance Installation, wiring and maintenance View Manual ›
Cobra Brake Installation & Maintenance Techtop Cobra Brake Installation & Maintenance Installation, wiring and maintenance View Manual ›
Lead Connection Recommendation Techtop Lead Connection Recommendation Installation, wiring and maintenance View Manual ›
Motor Wiring Diagram Techtop Motor Wiring Diagram Installation, wiring and maintenance View Manual ›
GR3 Cast Iron Lead Position Techtop GR3 Cast Iron Lead Position Installation, wiring and maintenance View Manual ›
Cobra Wiring Diagram Techtop Cobra Wiring Diagram Installation, wiring and maintenance View Manual ›
BL1 Wiring Diagram Techtop BL1 Wiring Diagram Installation, wiring and maintenance View Manual ›
NEMA Premium Motor Cross Section Techtop NEMA Premium Motor Cross Section Installation, wiring and maintenance View Manual ›
NEMA & Metric Motor Dimensions Chart Techtop NEMA & Metric Motor Dimensions Chart Installation, wiring and maintenance View Manual ›
VFD Quick Start Guide Techtop VFD Quick Start Guide Techtop VFD documentation View Manual ›
TD20 Series VFD Manual Techtop TD20 Series VFD Manual Techtop VFD documentation View Manual ›
TD310 Series VFD Techtop TD310 Series VFD Techtop VFD documentation View Manual ›
TD350 Series VFD Manual Techtop TD350 Series VFD Manual Techtop VFD documentation View Manual ›
Liteon Quick Start Techtop Liteon Quick Start Techtop VFD documentation View Manual ›
Motor Line Catalogs
IEEE 841 Techtop IEEE 841 Specifications, dimensions and part numbers View Catalog ›
DC Motors Techtop DC Motors Specifications, dimensions and part numbers View Catalog ›
Phase Converter Techtop Phase Converter Specifications, dimensions and part numbers View Catalog ›
Cooling Tower Techtop Cooling Tower Specifications, dimensions and part numbers View Catalog ›
Washdown Techtop Washdown Specifications, dimensions and part numbers View Catalog ›
Oil Pump Techtop Oil Pump Specifications, dimensions and part numbers View Catalog ›
Constant Velocity Fan Techtop Constant Velocity Fan Specifications, dimensions and part numbers View Catalog ›
Brake Motor Techtop Brake Motor Specifications, dimensions and part numbers View Catalog ›
Components Techtop Components Specifications, dimensions and part numbers View Catalog ›
Explosion Proof Techtop Explosion Proof Specifications, dimensions and part numbers View Catalog ›
Aerator Motor Techtop Aerator Motor Specifications, dimensions and part numbers View Catalog ›
High Efficiency 500T Frame Techtop High Efficiency 500T Frame Specifications, dimensions and part numbers View Catalog ›
VHS Series Motor Techtop VHS Series Motor Specifications, dimensions and part numbers View Catalog ›
Cast Iron Techtop Cast Iron Specifications, dimensions and part numbers View Catalog ›
Cobra 3-Phase Techtop Cobra 3-Phase Specifications, dimensions and part numbers View Catalog ›
COBRA Single Phase Techtop COBRA Single Phase Specifications, dimensions and part numbers View Catalog ›
Stainless Steel Techtop Stainless Steel Specifications, dimensions and part numbers View Catalog ›
Aluminum Techtop Aluminum Specifications, dimensions and part numbers View Catalog ›
Metric IEC 3-Phase Techtop Metric IEC 3-Phase Specifications, dimensions and part numbers View Catalog ›
Metric IEC Single Phase Techtop Metric IEC Single Phase Specifications, dimensions and part numbers View Catalog ›
Farm Duty Techtop Farm Duty Specifications, dimensions and part numbers View Catalog ›
Open Drip Techtop Open Drip Specifications, dimensions and part numbers View Catalog ›
JM/JP Techtop JM/JP Specifications, dimensions and part numbers View Catalog ›
Crusher Duty Techtop Crusher Duty Specifications, dimensions and part numbers View Catalog ›
Brochures & Flyers
HVAC Industry Techtop HVAC Industry Techtop product brochure View Brochure ›
Water Industry Techtop Water Industry Techtop product brochure View Brochure ›
Cobra Brochure Techtop Cobra Brochure Techtop product brochure View Brochure ›
Product Showcase Flyer Techtop Product Showcase Flyer Techtop product brochure View Brochure ›
Why Techtop Techtop Why Techtop Techtop product brochure View Brochure ›
Dealers Industrial Equipment, LLC 619 Ramsey Avenue Hillside, NJ 07205 Toll Free: 800-469-3110 Phone: 908-688-1966 Fax: 908-688-1844 **After Hours Emergency Phone: 732-428-9677** ©Copyright Dealers Industrial Equipment, LLC 2026
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