DEV-N Video Gallery

DEV-N adds automatic switching, cyclic timing and motor protection to compatible three-phase borewell, openwell or monoblock starter circuits in its listed 2–100 HP range. It is a useful choice when you want these control functions on a suitable existing starter. Start with the motor nameplate and existing contactor or push-button control arrangement, then check the product and wiring details.

DEV-N connects to a compatible three-phase contactor or Green ON/Red OFF push-button starter control circuit. The existing starter handles the motor power circuit while DEV-N supplies its documented control functions. Have an electrician confirm the pairing; choose an assembled DOL panel if that is the equipment your site needs.

Match the three-phase supply, motor HP and current, contactor coil/control voltage and R-Y-B phase sequence. These details give the installer a clear basis for the control connections and protection settings. Keep the motor and starter information available when reviewing the supplied DEV-N diagram.

DEV-N supports automatic motor start after healthy three-phase power returns. This provides automatic power-return operation within the configured conditions. Agree the intended operating mode during setup, and isolate the installation before maintenance because automatic starting is part of the function.

Timer types explained

Its Cyclic Timer repeats configured ON and OFF periods for a run/rest pumping pattern. DEV-N suits this time-based control requirement; choose a dedicated level controller when the pump should follow tank demand. Use the timer guide to select the pattern and intervals for your source and motor.

DEV-N provides a borewell recharge delay after a dry-run stop. The configured wait gives the source a planned interval before another start attempt. Choose it for the actual source conditions and review water availability if dry-run stops recur.

Fault-code guide

DEV-N displays voltage, current, timer and fault information. Those readings help you describe the operating state clearly when discussing a pump stop or a setting. Record the model, displayed values and what the pump was doing, then use the fault guide for the relevant checks.

The fault guide describes holding DEV-N’s SET button for about two seconds until RST appears, then releasing it. This gives you a model-specific procedure after the fault cause has been assessed. Follow the DEV-N instructions and arrange diagnosis if the same fault returns.

DEV-N checks phase availability and R-Y-B sequence alongside its voltage and current-related protection. The resulting indication helps identify the supply or phase arrangement that needs attention. Use the fault guide and an electrician’s checks to restore suitable operating conditions.

Prepare the motor nameplate, supply phase, starter type and contactor/control-voltage details. These let the existing control arrangement be checked against the DEV-N connection guide. Share the model and any displayed fault as well, so the selection or setup discussion starts with the actual equipment.