GRUNDFOS · CONSTANT PRESSURE DRIVE
CUE 100
Constant-pressure variable-frequency drive for Grundfos SP three-phase submersible motors on a 200-240V single-phase supply. Pressure transducer included.
200-240V 1Ph in
3Ph out
6 to 18.5 A motor
NEMA 4X / IP66 outdoor
Overview
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.
What Ships and What It Needs to Run
Included: one CUE 100 drive with its pressure transducer (Grundfos lists the transducer as included), NEMA 4X / IP66 for outdoor mounting.
Required: a Grundfos three-phase submersible motor whose service-factor current is within the drive rating, a 200-240 V single-phase supply, and a diaphragm pressure tank sized to the CUE 100 instructions.
Note: the CUE 100 and the CUE are separate drive families; their accessories do not interchange.
Genuine Grundfos equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier.
Warranty
24 months from date of installation, but not more than 30 months from date of manufacture. In Grundfos's words, products are “warranted to the original user only to be free of defects in material and workmanship”; the full terms are in the installation and operating instructions on the Data Sheet tab.
Models & Part Numbers
| 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.
Before You OrderMatch the motor's full service-factor current to the drive rating. A diaphragm tank sized for the stop function, drop cable and site fittings are additional. CUE 100 and CUE are separate drive families; CUE accessories are not interchangeable with the CUE 100.
