pump calpeda NRD EI 65/125A

	pump calpeda NRD EI 65/125A
Pressure:	21m
Feed:	80m3/h
Pump power:	4 kW
Pump type:	centrifugal In-line
Voltage:	380V
Pump material:	cast iron
Wheel material:	cast iron
Wheel type:	centrifugal
Pump location:	vertical

calpeda NRD EI 65/125A pump

Variable speed pumps
NR(D) EI, NR4 EI pumps are available with power from 0, 25 kW to 18.5 kW and equipped with I-MAT inverters.
They allow the implementation of an extremely compact and efficient variable speed system, which is ideally
suitable for use in water supply and for the distribution of hot and cold water.< br/>sensors programmed directly at the manufacturing plant and programmed by the user for the
required mode of operation.
Advantages
- Energy saving.
- More compact system.
- Ease of use.
- Personalized programming according to installation requirements.
- Reliability.
Design
System components:
- Pump
- Electric motor (two for NRD, NRD4)
- I-MAT frequency regulator (two for NRD, NRD4)
- Adapter for mounting on the motor (two for NRD, NRD4)
- With connecting cable for inverter and electric pump
- Pressure sensors
- Communication cable for multi-pump installation NRD, NRD4
- 2 boards for multi-pump installation NRD, NRD4
Main characteristics:
Nominal motor power: from 0.25 kW to 18.5 kW
Adjustment range: revolutions 1750÷2900 1/min (2-pole pumps).
Adjustment range: revolutions 870 ÷ 1450 1/min (4-pole pumps).
Protection against dry running
Protection against operation with a closed nozzle
Protection against leakage
Protection against overvoltage in the motor
Protection against overvoltage or undervoltage in the power system
Protection against imbalance between power phases