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.

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 »
 
 
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Phase loss and sequence protection relay, WEG, RPW-FSFD74
Model #: RPW-FSFD74  
RPW-FSFD74
 
Stock:  6
Classification : PROTECTION RELAY
Manufacturer : Weg
Model : 10074363
Item Condition : Factory New
Weight:  4 lbs
Our Price:
$68.66
Qty: 
 

PROTECTION RELAY RPW-FSFD74 | RPW - Electronic monitoring relays | Electronic Relays | Controls | WEG

WEG RPW relays are electronic devices that protect the three-phase systems against phase loss or neutral loss (selectable) and phase sequence inversions integrated in the same product (RPW FSF). Whenever an anomaly occurs in the system, the relay will switch its output to interrupt the motor or process to be protected. Designed according to international standards, the RPW is a compact and safe solution in 22.5-mm wide boxes for mounting on DIN rail 35mm.

  • Factory New with manufacturer's warranty
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15 HP, 3600 RPM, 208-230/460 Volts*, TEFC, 254T, Footed,
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