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 »
E510-402-H3N4-U-Dealers Electric-Teco
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2 HP, 460 Volts, NEMA 4/4X/12, Teco, E510-402-H3N4-U

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Model #: E510-402-H3N4-U  
460 Volts 3 Phase Input, 460 Volts 3 Phase Output
Stock:  24
HP : 2
Enclosure : NEMA 4/4X/12
Input Voltage : 460
Input Phase : 3
Manufacturer : Teco-Westinghouse
Output Voltage : 460
Output Phase : 3
Model : E510
Item Condition : Factory New
Weight:  12 lbs
Retail Price$990.00
Our Price:
You Save:$455.40 (46%)

TECO E510 NEMA 4 / 12 Variable Speed Drive
With Keypad only on Front Cover
Factory New

The E510 NEMA 4/ 12 Variable Speed Drive is a versatile and compact AC Drive that can control today’s demanding motor driven applications in a cost effective manner. Further, the E510 provides an ideal solution for fans, pumps, mixing, and conveyors installed in non-ideal environments.

Replacement for the MA7200 NEMA 4/4X/12 Series.


  • Input Voltage: 460 Volt 3 Phase
  • Output Voltage: 460 Volt 3 Phase
  • Constant Torque Horsepower: 2
  • Constant Torque Amps: 3.8
  • Variable Torque Horsepower: -
  • Variable Torque Amps: -
  • Enclosure: NEMA 4/4x/12
  • Additional Features:
  • Height: 9.79"
  • Width: 5.94"
  • Depth: 7.2"
  • Certification: UL; cUL; and CE Approved
  • Warranty: Factory New with Manufactures Warranty


  • Control Modes for V/F, Hz, and Sensorless Vector
  • Advanced Regenerative Load Handling Capability
  • Parameters grouped by function
  • 0 to 599 Hz Speed Range
  • Conformal Coating on PC Boards
  • Built-in PLC Functionality
  • PID Process Control Loop
    • Sleep Mode
    • 0-10VDC or 4-20mA Feedback
    • Loss of feedback or tracking detection
  • Built-in Modbus Protocol (RJ45 Interface)
  • 5 Digit LED operator’s keypad
    • Scalable Display
    • Programming parameters
    • Diagnostics monitoring
  • Built-in Disconnect and Speed Pot on selected models
    • 230V, 1Ø (0.5 to 3 HP)
    • 460V, 3Ø (1 to 15 HP)
  • Digital and Analog Inputs and outputs have extremely fast (~4 msec) update time
  • Auto Run Mode (cyclic operation)
  • Power loss ride through
  • Automatic Voltage Regulation (AVR)
    • Stabilizes output voltage against fluctuating input voltage


  • Areas in contact with corrosive solutions
  • Processing areas that require periodic washdown:
    • Food
    • Beverage
    • Pharmaceuticals
  • Corrosive, dusty, humid, or other dirty environments
  • Mixers
  • Pumps (Centrifugal, Positive Displacement, Metering, etc.)
  • Conveyors
  • Extrusion and Injection Molding
  • Packaging Machines
  • Crushers/ Grinders
  • Machine Tools
  • Compressors
  • Fans
Control Mode V/Hz , Sensorless Vector (SLV)
Frequency Range 0-599Hz
Frequency Accuracy Digital Input: 0.01Hz
Analog input: 0.1%
Speed Control 50:1
Starting Torque 150%/1Hz (SLV)
Overload Tolerance Rated Output Current 150% / 1minute
Frequency Settings • Frequency setting with <, > keys
• Potentiometer on front cover
• External input terminals
    - AI1 (0-10VDC)
    - AI2 (0/4-20mA)
• Multi-function Input
• (Up/Down)
• Pulse input
Acceleration Settings • Two sets of acceleration and deceleration times
• Jog acceleration and deceleration settings
   (0-3600 sec)
Voltage/ Frequency Characteristics • Qty 18 preset V/Hz patterns  plus user settable V/F pattern
• Adjustable voltage (torque) boost
Control Features • 1-16kHz Carrier frequency  (adjustable)
• Acceleration/Deceleration ramps with S curves
• Sensorless Vector mode with  auto tuning
• DC Injection braking
Input Voltage Range 230 V drives: 200-240VAC +10%, -15%
460 V drives: 380-480VAC +10%, -15%
Digital Inputs • Qty 6 configurable
• Over 25 available selections
• Assign each as normally open or normally closed
• 24V power supply
• Pulse input
Digital Outputs • Qty 2 relay outputs
• Over 20 available selections
• Assign each as normally open or normally closed
Analog Inputs  • Qty 2 analog input channels
    - 1 at 0-10VDC
    - 1 at 4-20mA
• Adjustable gain and bias on each channel
Analog Outputs • 0-10VDC
• 5 available configurations
    - Output Frequency 
    - Set Frequency
    - Output Current
    - Output Voltage
    - DC Bus Voltage
• Adjustable gain and bias 
Safety Input Dedicated safety input  (factory jumpered)
Overload Stall Prevention Up to 150%, 1 minute on acceleration, 
deceleration and constant speed
Overcurrent Instantaneous above 200%
DC BUS Overvoltage 230V input drives: >410VDC
460V input drives: >810VDC
DC BUS Undervoltage 230V input drives: < 190 VDC
460V input drives: <380 VDC
Other protection Ground Fault, Phase Loss, Overtemperature,
Loss of PID Feedback External Fault Setting,
Fire Mode
Operating Temperature -10~+50°C 
Storage Temperature -20~+70°C
Humidity 95% RH or less  (non-condensing)
Vibration/ Shock • 20 HP or less; 1g  (32.2 ft/sec2)
• 20-25 HP; 0.6g  (19.3 ft/sec2)
Certification Complies with IEC 60018-2-78,
UL, cUL, CE, & RoHS
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