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The Grundfos CUE 100 adjusts the speed of a Grundfos SP pump using pressure feedback to hold the selected water pressure as demand changes. It takes a 200-240 V single-phase supply and delivers a three-phase variable-frequency output to the motor, so a three-phase submersible motor can be run from single-phase service.
The drive ships with its pressure transducer and is housed in a NEMA 4X / IP66 enclosure rated for outdoor installation. Four sizes cover motors from 6 to 18.5 A maximum service-factor current. The drive is the same unit supplied in the Grundfos CUE 100 well pump packages and is listed here on its own for replacement or for a system assembled from separate components.
| Model | Max motor SF amps | Input | Output | Enclosure | Part No. |
|---|---|---|---|---|---|
| CUE 100 10 | 6 | 200-240V 1Ph | 3Ph | NEMA 4X / IP66 | 93281860 |
| CUE 100 20 | 9.5 | 200-240V 1Ph | 3Ph | NEMA 4X / IP66 | 92939786 |
| CUE 100 30 | 12.5 | 200-240V 1Ph | 3Ph | NEMA 4X / IP66 | 92939800 |
| CUE 100 50 | 18.5 | 200-240V 1Ph | 3Ph | NEMA 4X / IP66 | 92939803 |
Select the drive by the motor's maximum service-factor current, not by horsepower alone. Shipping weight 60 lb.
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