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Home / Products / CU331 SP Variable Frequency Drive

The CU331SP is a constant pressure, variable frequency drive based on a proven product platform. CU331SP is a strong supplement to the Grundfos SmartFlo constant pressure program. This new product is designed to easily adapt to any combination of 2HP, 3HP or 5HP Grundfos SP pump systems using a 3-phase motor. This wall mounted system maintains a constant pressure within the maximum pump performance in spite of varying water consumption. The CU331SP is programmed with parameter settings optimized for submersible pump applications. An easy to follow Start-Up Guide walks the installer through a few screens and completes the set-up.

Applications

For 4″ or larger wells: 2, 3 or 5HP pumps

Domestic and light commercial water supply
Irrigation
Livestock watering
Water transfer

Features & Benefits

Easy setup – simply run the Start-up Wizard and choose pressure setpoint,
The system determines the direction of rotation and sets the dry-run function according to the pump,
System design approach – the CU331SP works with any combination of matched pump and motor,
CU331SP works with 2, 3 or 5Hp submersible pumps to fulfill your constant pressure requirements,
Matched pump & motor – 2HP pump on 2HP motor, 3HP pump on 3HP motor, 5HP pump on 5HP motor,
Built-in protection features – Soft start, dry run, overload, over/under voltage, sensor alarm, alarm relay and run relay,
Wide voltage range – input: single phase 208 – 240VAC output: 3-phase 208-240VAC,
Indoor or outdoor enclosure options: IP55/Type 12 or IP66/Type 4X.

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Technical Data | Related Products

Manufactured by: Grundfos

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Technical Data

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BBC Pump and Equipment Co.

777 North Tibbs Avenue
Indianapolis, IN 46222

P: 317-636-1111
F: 317-636-5467
sales@bbcpump.com
service@bbcpump.com

M-F, 8:00 AM - 5:00 PM

Indiana’s Pump Experts Since 1981

Our mission is to provide customer oriented service through the proper application of quality pump equipment.

BBC Pump and Equipment Company supplies superior pumps, equipment and systems; designed, installed and serviced by the best engineers and technicians in Indiana.

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