Sourcing Three-Phase Pump Controller PCBA with Motor Protection and RS-485 Modbus for Industrial Use

Buy offer Details

We are looking for an existing, fully programmed PCBA for one three-phase water pump motor.

Requirements :

380/400 V AC, 50 Hz
DOL start through external contactor
Motor range about 1.1–30 kW
Three-phase current measurement, preferably with 3 external CTs
Float switch, pressure switch and water-level probe inputs
External Start/Stop and Manual/Auto inputs
Relay output for contactor
RS-485 Modbus RTU with register map

Protections :

Overload, overcurrent
Underload and dry-run
Locked rotor/pump jam
Phase loss, phase sequence and phase imbalance
Overvoltage and undervoltage
Adjustable delays, fault memory and auto restart

We prefer a bare tested PCBA without enclosure and will use our own DWIN HMI.

Please send model, PCB photos, wiring diagram, manual, Modbus map, dimensions, sample price and prices for 100, 500 and 1000 units.

We need an existing proven platform, not a new design.