Submersible pump control relay, well reservoir level indicator

Control and protection of three-phase submersible pump, maximum current 60 A, 260 V-470 V AC, Tense.

Electrodes (liquid level sensors) not included.

Maximum and minimum current and voltage control, water presence control, star/delta start, inrush current factor, start time adjustment, connection/disconnection delay timers, return to service timer, inputs for three level sensors and float switch, asymmetry and phase sequence control, 4x20 character LCD screen, dry running protection and automatic cycling.

This controller is designed to automate the protection and control of submersible borehole pumps and other water pumps. The main features of this controller are:

• Large, easy-to-read display for information and adjustment of operating parameters.

• Intuitive interface

• Buttons for manual pump control

• Monitoring of maximum and minimum voltage between phases (with adjustable nominal and time values)

• Monitoring of maximum and minimum current (with adjustable time and nominal values)

• Adjustment of time interval and overload factor for switching current

• No need to connect the neutral conductor

• Phase sequence and phase asymmetry control (with adjustable time and nominal values)

• Integrated star-delta start relay to reduce starting currents

• Adjustable power factor values for dry-running protection even when water level sensors are not used

• Adjustable sensor sensitivity depending on water parameters

• Adjustable response time for level sensors

• Pulse power for level sensors: significantly extends sensor life

• Adjustment of pump activation frequency and saving of operating time even in case of power failure

• Error logging in non-volatile memory

Technical parameters:

• Operating voltage: 120 V-290 V AC

• Operating frequency: 50/60 Hz

• Operating temperature: 0 °C - 55 °C

• Power consumption: <4 VA

• Operating current range: 1 A-60 A

• Dimensions: 139 × 139 mm

• Connection type: connector

• Weight: 0.6 kg

• Output contact: 5 A, 250 VA

• Indicator: LCD, LED

• Cable cross-section: 2.5 mm².