DOL starters are basic electrical starters with contactors and relay for ONOFF operation and overload protection of the pump set.
Over and above the ONOFF operation and overload protection features equipped in Controllers, it also provides additional features like Auto ON, indications of Supply ONOFF and Pump ONOFF, reading of real time voltage & current of pump with unique Dual analog meter. Single phasing protection relay (SPPR) inside Controller unit provides the advanced protection features viz. single-phasing prevention, phase-reversal protection, phase-unbalance protection, variable time-delay adjustment for delayed operation of pump set.

DOL starters are basic electrical starters with contactors and relay for ONOFF operation and overload protection of the pump set.
Over and above the ONOFF operation and overload protection features equipped in Controllers, it also provides additional features like Auto ON, indications of Supply ONOFF and Pump ONOFF, reading of real time voltage & current of pump with unique Dual analog meter. Single phasing protection relay (SPPR) inside Controller unit provides the advanced protection features viz. single-phasing prevention, phase-reversal protection, phase-unbalance protection, variable time-delay adjustment for delayed operation of pump set.