Energy cut on variable-flow pumps and fans
Agriculture
Drives for irrigation, grain handling, and farm ventilation
From booster pumps to grain conveyors, agricultural installs need drives that handle dust, voltage variation, and seasonal duty cycles. Here is what we recommend and why.
Dust and weather sealed for outdoor duty
Typical agricultural motor range
NEC 430 motor circuits, NEC 675 for center-pivot machines, IP66/NEMA 4X for outdoor duty, Authorized Invertek distributor
Why drives matter
Where VFDs change the field economics
The value is more than a softer start. On the farm, drives hold irrigation pressure as wells and demand shift, cut energy on pumps and fans, and protect motors from the inrush that trips rural generators.
30-50%
Energy cut on pumps and fans
Throttling wastes power on the farm
Irrigation pumps and barn fans are centrifugal, so they follow the affinity laws. Matching speed to demand instead of running full speed against a valve or damper cuts power by roughly a third to a half.
Affinity laws, power tracks the cube of speed
< 1 yr
Payback on irrigation pumps
ROI inside a growing season
A 10 HP pump running about 1,800 hours a season can pay back a drive in under a year at typical energy rates. Treat that as an estimate and run your own figures in the calculator below.
0 spikes
Motor and genset protection
Soft starts cut the inrush
Across-the-line starts pull heavy inrush that shortens motor life and trips rural generators. A ramped start removes the current spike and the mechanical shock.
Applications and drives
Drives we recommend for agriculture
Application 1 of 6
Irrigation booster pumps
Pressure-controlled pumping for irrigation zones and booster skids. Centrifugal load, so PID speed control holds pressure and the affinity laws do the rest on energy.
5-50 HPPID, IP66soft start
Invertek
ODV-3-440390-3F1A-MN
Invertek Optidrive Eco ODV-3-440390-3F1A-MN – 25Hp 380~480V 3Ph IP66/NEMA4X Indoor/Outdoor
Invertek Optidrive Eco – Model ODV-3-440390-3F1A-MN Power: 25Hp / 18.5kW Output Current: 39A Input Voltage...
HP
25.0
$2,819.52
Application 2 of 6
Center pivot machines
Drive control for pivot tower and pump motors running outdoors across changing loads. The machine itself is wired under NEC 675, the supply pump under Article 430.
3-15 HPIP66 NEMA 4Xfield duty
Invertek
ODE-3-340180-3F4A
Invertek Optidrive E3 ODE-3-340180-3F4A – 10Hp 380~480V 3Ph IP66/NEMA4X Indoor/Outdoor
Invertek Optidrive E3 – Model ODE-3-340180-3F4A Power: 10Hp / 7.5kW Output Current: 18A Input Voltage: 380...
HP
10.0
$1,235.52
Application 3 of 6
Grain conveyors
Motor control for grain belts and drag conveyors. Constant torque with heavy dust, so the value is high starting torque and a sealed enclosure, not cube-law energy.
10-30 HP200% torqueIP66 dust
Invertek
ODP-2-44250-3HF4A-MN
Invertek Optidrive P2 ODP-2-44250-3HF4A-MN – 25Hp 380~480V 3Ph IP66/NEMA4X Indoor/Outdoor
Invertek Optidrive P2 – Model ODP-2-44250-3HF4A-MN Power: 25Hp / 18.5kW Output Current: 39A Input Voltage:...
HP
25.0
$2,815.30
Application 4 of 6
Ventilation fans
Speed control for livestock and storage ventilation. Variable torque, so trimming fan speed to temperature cuts real energy and smooths airflow.
1-20 HPenergy savingssingle phase
Invertek
ODE-3-220105-1F42
Invertek Optidrive E3 ODE-3-220105-1F42 – 3Hp 200~240V 1Ph IP20
Invertek Optidrive E3 – Model ODE-3-220105-1F42 Power: 3Hp / 2.2kW Output Current: 10.5A Input Voltage: 20...
HP
3.0
$464.64
Application 5 of 6
Augers and screw conveyors
Feed augers and screw conveyors run at constant torque. The drive adds controlled starts and stops, overload headroom, and braking where the load drives back.
5-25 HPheavy dutybrake option
Invertek
ODP-2-44200-3HF42-MN
Invertek Optidrive P2 ODP-2-44200-3HF42-MN – 20Hp 380~480V 3Ph IP20
Invertek Optidrive P2 – Model ODP-2-44200-3HF42-MN Power: 20Hp / 15kW Output Current: 30A Input Voltage: 3...
HP
20.0
$1,934.59
Application 6 of 6
Greenhouse climate control
Compact control for greenhouse circulation fans and pumps across a wide temperature range, with single-phase input for smaller houses.
1-10 HPwide tempcompact
Invertek
ODE-3-220070-1F42
Invertek Optidrive E3 ODE-3-220070-1F42 – 2Hp 200~240V 1Ph IP20
Invertek Optidrive E3 – Model ODE-3-220070-1F42 Power: 2Hp / 1.5kW Output Current: 7A Input Voltage: 200~2...
HP
2.0
$419.76
Quick ROI estimate
Estimate savings on your pumps and fans
Recommended drive
ODP-2-22075-1KF42
ODP-2-22075-1KF42
General-purpose drive recommendation for pump and motor control.
Estimated annual savings
0
kWh saved
0
Payback months
Formula: motor kW x annual hours x energy cost x savings rate, where motor kW is HP x 0.746. The savings rate comes from the pump affinity laws: power falls with the cube of speed, so a drive saves energy only by running the pump below full speed, and the saving shrinks as static head rises. Drive losses of about 3 percent are included. Payback uses the entered drive price, or the recommended one when blank. Verify against the pump curve for critical sizing.
Drive selector
Drive Selector
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