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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 are offered at lower prices and come with our 90-day warranty.

Factory New products are competitively priced and come with a manufacturers 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 »

 
 

Hitachi Instruction Manuals


High Starting Torque

WJ200 Series Advanced
Sensorless Vector


½ thru 1 HP – 115V 1 Phase (Input)
¼ thru 20 HP – 230V 1 or 3 Phase
½ thru 10 HP – 460V 3 Phase


WJ200 Series Brochure
WJ200 Series Quick Reference
WJ200 Series Instruction Manual
WJ200 Series Dynamic Braking Selection
WJ200 Series Watt Loss Data

Shop On-line for WJ200 Drives


With Built-in Communications
SJ700 Series Sensorless Vector

½ thru 75 HP – 230V 3 Phase
1 thru 600 HP – 460V 3 Phase


SJ700 Series Brochure

SJ700 Series Instruction Manual

Fan and Pump Drive
SJ700B Series Fan & Pump Drive

15 thru 100 HP – 230V 3 Phase
15 thru 200 HP – 460V 3 Phase


SJ700B Series Brochure

SJ700B Series Instruction Manual


Ultra Compact Design
NES1 Series Compact Drive

¼ thru 3 HP - 230V 1 Phase (Input)
¼ thru 3 HP – 230V 3 Phase
½ thru 3 HP – 460V 3 Phase

NES1 Series Brochure
NES1 Series Quick Guide
NES1 Series Instruction Manual

Shop On-line for NES1 Drives


Torque Boost Mode
X200 Series Micro Drive

¼ thru 3 HP – 230V 1 or 3 Phase (Input)
5 thru 10 HP – 230V 3 Phase
½ thru 10 HP – 460V 3 Phase


X200 Series Instruction Manual


Torque Boost Mode
L100M Series Micro Drive

¼ thru 1 HP – 115V 1 Phase (Input)
1 HP – 115V 1 Phase Input, 230V 3 Phase Output


L100M Series Instruction Manual


Fan and Pump Drive
L700 Series Compact Drive

15 thru 100 HP – 230V 3 Phase
15 thru 200 HP – 460V 3 Phase


L700 Series Instruction Manual


Application Notes

Compare Hitachi Inverters to one another
Sizing Three-Phase Inverters for Single Phase Power Applications
Applying Inverters to Centrifugal Compressors in HVAC Chillers
Using ProDrive Software on PCs Only Equipped with USB Ports and No Serial Ports
Minimizing Motor Shaft Bearing Current
Powering Inverters from a DC Supply
Meeting IEEE 519 (All Models)