Variable-Frequency Drives (VFD)

A variable-frequency drive (VFD) also known as a variable speed drive, AC drive, micro drive or inverter drive, is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage. VFDs are used in applications ranging from small appliances to large compressors.

TECO L510 Micro Drive Medium Duty AC

A compact, low cost, and versatile variable-frequency drive that is easy to program and ideal for OEMs.
1/4 HP through 3 HP

Mixing, Treadmills, Lathes, Fans, AC Contactor Replacement, Milling, Small Conveyors and Pumps


  • Chassis Style Enclosure (IP20)
  • Sensorless Vector or V/ Hz with Auto Torque Boost Feature
  • 0.25 to 1 HP, 115V, 50/ 60Hz, 1-Phase
  • 0.25 to 3 HP, 230V, 50/ 60Hz, 1-Phase
  • 0.5 to 3 HP, 230V, 50/ 60Hz, 3-Phase
  • 1 to 3 HP, 460V, 50/ 60Hz, 3-Phase
  • Extensive Diagnostic and Monitoring Capabilities
  • Din Rail Option
  • PID Control
  • 8 Preset speeds
  • Two Multi-Function Analog Input/ Qty 1 Analog Output
  • Built-in Modbus or BACnet Protocol Via RJ 45 Interface
  • UL, cUL, and CE Approved

E510 Compact Drive Medium Duty AC

A versatile and compact AC Drive that can control today’s demanding motor driven applications in cost effective manner. Further, the E510 provides an ideal solution for pans, pumps, mixing, and conveyors installed in non-ideal environments.

Conveyors, Pumps, Mixing Equipment, Lathes, Fans and Blowers, AC Contactor Replacement, Compact size is convenient for retrofitting/ replacing an older generation VFD


  • 0.5 to 3 HP (CT), 230V
  • 50/ 60Hz, 1-Phase, 0.5 to 40 HP (CT), 460V
  • 50/ 60Hz, 3-Phase, 1 to 75 HP (CT), 460V
  • 50/ 60Hz, 3-Phase
  • Parameters Grouped by function
  • Built-in PLC Functionality
  • PID Process Control Loop
  • Built-in Modbus & BACnet Protocols
  • 5 Digit Operator’s Keypad with Speed Pot
  • 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)
  • Complies with IEC 60018-2-78
  • UL, cUL, CE, & RoHS

A510 Heavy Duty AC

An easily configured versatile drive product that will control all general applications such as pumps, fans, conveyors, and mixers. It comes standard with a simple to preset application parameters for many commonly used applications. Despite its simple and easy approach, the A510 variable-frequency drive is loaded with features to solve tough and demanding applications such as reciprocating pumps, compressors and high torque/high inertia loads.

Mixing, Pumps (Centrifugal, Positive Displacement, Metering, etc.), Conveyors, Extrusion and Injection Molding, Packaging Machines, Winders/ Unwinders, Machine Tools, Crushers/ Grinders, Fans, Crain/ Hoist, Compressors


  • Control Modes for V/F, V/F with PG feedback, Sensorless Vector, and Closed Loop Vector
  • Simple PLC Function Built-in
  • Advanced Regenerative Load Handling Capability
  • 1 to 100 HP (CT), 230V, 50/ 60Hz, 3-Phase z 1 to 125 HP(VT), 230V, 50/ 60Hz,3-Phase
  • 1 to 400 HP (CT), 460V, 50/ 60Hz,3-Phase
  • 1 to 400 HP (VT), 460V, 50/ 60Hz,3-Phase
  • 1 to 10 HP (CT/VT), 575V, 50/ 60Hz,3-Phase
  • 15 to 250 HP (CT), 690V, 50/ 60Hz,3-Phase
  • 15 to 270 HP (VT), 690V, 50/ 60Hz,3-Phase
  • Conformal Coating on PC Boards
  • LCD Keypad that is Remotely Mountable
  • Flexible Input/ Output Configurations that Accept Normally Open or Normally Closed Signals
  • 0 to 599 Hz Speed Range
  • PID Control
  • Diagnostics Registers for Troubleshooting
  • Built-in RS485 Modbus Protocol
  • Enhanced Design for Quiet Motor Operation
  • Pulse Output and Pulse Follower
  • Select Between Closed-Loop Speed and Torque Control in Vector Mode
  • UL, cUL, and CE approved

F510 Fan and Pump AC

An easily configured and versatile drive product that will control almost any application involving fans, blowers and centrifugal pumps. It comes standard with a simple to select present application parameter for commonly applied fan and pump applications.

Fans, Centrifugal Pumps, Blowers, HVAC Industries, Water and Wastewater Industries, Irrigation


  • Control Modes for V/F, Sensorless Vector
  • Sensorless Vector with Permanent Magnet Motor
  • Built-in PLC as Standard
  • Operation and Engineering Units Standard
  • LCD Keypad with Remote Mounting Capabilities
  • PID Control with Advanced Diagnostics and Sleep Mode
  • 1 to 150 HP (Variable Torque), 230V, 50/ 60Hz, 3-Phase
  • 1 to 800 HP (Variable Torque), 460V, 50/ 60Hz, 3-Phase
  • Plenum Rated
  • Diagnostics Registers for Troubleshooting
  • Flexible Input/ Output Configurations that Incorporate Normally Open or Normally Closed Signals
  • 0 to 400 Hz Speed Range
  • Built-in Modbus, BACnet, and Metasys (N2) Protocols via (RS485 or RJ45 Interface)
  • Enhanced Design for Smoother and Quieter Motor Operation
  • Real Time Clock (Standard on Models with LCD Keypad)
  • PTC Input Available for Direct Thermal Protection of the Motor
  • Thermal Management on the Heat Sink for Overtemperature Fault Avoidance
  • Master-Follower Control Mode Built-in
  • EMI Protection that Complies with EM61800-3 with Optional Filter
  • EMS Protection that Follows EN61800-3
  • UL, cUL, and CE Approved