Environmental Monitoring Equipment & Supplies • Sales, Rental & Service by Enviro-Equipment — Charlotte, North Carolina USA

  • For use with Grundfos Redi-Flo 2 and Redi-Flo 4 pumps.
  • Power requirement: 115V AC
  • Variable Frequency Drive (VFD) controller allows for fine tuning flow speed.
Title Daily Rate Weekly Rate Monthly Rate
Grundfos Redi-Flo Controller Rental $70.00 $150.00 $550.00

The Grundfos Redi-Flo Variable Frequency Drive is required to power and regulate the flow rate of the Redi-Flo 2 and Redi-Flo 4 submersible pumps. The unit accepts 115V or 230V sources. The default setup for the Redi-Flo VFD is 115V, 230V setup requires wiring changes at the input power terminals.

Items Included:
  • Redi-Flo VFD Controller
  • Instruction Manual

Input Voltage

  • 115V +/- 10% / 1 PH / 48-62 Hz
  • 230V +/- 10% / 1 PH / 48-62 Hz

Output Voltage

3 x 220V (RF2)

Acceleration Time

0.5 – 3600 Seconds

Deceleration Time

0.5 – 3600 Seconds

Accel/Decel Pattern


Enclosure Rating

UL Type 4, No Direct Sunlight

Ground Fault

Ground Fault Detection For Equipment Protection


Output Short Circuit Locked Rotor

Over Voltage

400 VDC

Under Voltage

200 VDC

Line Start Lock Out

VFD Will Not Start Upon Input Power Application.

Operating Temperature

-10 to 40 degrees C

Storage Temperature

-30 to 65 degrees C


3300 Feet Without Derating

Dimensions of Case

18.5" x 14" x 9"


36 Pounds


High Density Polyethylene




Chrome-plated Clasp

Redi-Flo VFD User Manual188.61 KB