• CUE Frequency converters for three-phase pumps  Grundfos

Technical data

• Mains voltage:

• 1 x 200-240 V
• 2 x 200-240 V
• 3 x 380-500 V
• 3 x 525-600 V
• 3 x 575-690 V.

Applications

Adjustment of the pump performance to the 

demand. Together with sensors, the CUE 

offers these control modes:

• proportional differential pressure
• constant differential pressure
• constant pressure
• constant pressure with stop function
• constant level
• constant level with stop function
• constant flow rate
• constant temperature.

The CUE can also be controlled by an external signal or via GENIbus.

Features and benefits

• Adjustment of the pump performance to the demand, thus saving energy.
• Easy installation, as the CUE is designed for Grundfos pumps.
• Short-circuit-protected output; no motor-protective circuit breaker required.
• Fault indication via display and a relay, if fitted.
• External setpoint influence via three programmable inputs.

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