Item Specifications :

Condition : A brand new unused, undamaged item that is fully operational and functions as intended.

Warranty : 1 Year Manufacturer.

Warranty Service : Repair or Replacement.

Package Contain : 

1 Digital Star Delta Instrument. include water level controller

3 number 50 A C.T.

2 number mouning clamps

Product Descriptions :

SD 3DW suitable for any HP motor 

SD 3DW have inbuilt of water level controller 

User can connect any rating of contactor to design any hp of Star Delta starter

Input : 415 V AC R,Y,B

Output : Potential free realy output (3 Relay output, Main, Star and Delta)

Dimention : 96 x 96 

Display 4 digit with 4 numbers of 7 segment (2 display provided with 14 numbers of 7 Segment)

3 display provided 

1st display shows voltage, 2nd display shows current

3rd display shows Overload triping value and this value can be adjustable by up and down key. That up and down key provided just right side of 3rd display.

In this model it is very easy to set Overload value by up and down key.

Auto Switch Provided

Auto switch timer provided (when power goes and comes it will start with preset time,) timer adjustable

Auto Bypass Switch provided. (In Auto mode motor automatically start oce power goes and comes and in manual mode motor start by pressing start and stop button)

SPP provided

It protect motor from phase failure. In 3 phase motor. Out of 3 phase if any phase failed then motor run in 2 phase and motor winding gets burn.

It protect motor from phase interchange. Out of 3 phase if any phase changed, then motor rotate reverse in this case motor winding gets burn

It protect motor from voltage different between 3 phase, Voltage between 3 phase must be same

3 NO of C.T. provided, It measures the current of all 3 phase

Motor side current unbalance protection provided

Phase to Phase Current differents are adjustable

Phase to Phase Voltage differents are adjustable

Voltage and Current calibration facility 

Micro controller based design 

Digital Volt and ampere meter are provided to see system voltage and load current accordingly.

Two seperate display for volt and amp.

high voltage protection, 

low voltage protection,

Adjustable voltage limit (High and low both voltage protection limit adjustable)

overload protection

Adjustable overload from 0 to 30 A

Current based dry run protection provided 

Adjustable dry run current from 0 to 30 A

Short circuit protection

protection bypass facility 

Cyclic timer provided with bypass facility (adjusatble from 0 second to 999 min) If user want start and stop the motor on perticuler time then user can set the on and off time of cyclic timer 

Delay off timer provided with bypass facility (adjusatble from 0 second to 999 min) If user want to stop the motor after certain time then they can set the delay off timer. in this timing mode user can start the motor by pressing start button and it will auto stop based on preset delay off time.

On delay timer and off delay time provided (adjusatble from 0 second to 999 min) If user want to start the motor after certian time then they can use this timer.

Auto switch provided with bypass facility (When power goes and comes it will start the unit automatically)

Auto switch timer adjusatble from 0 second to 999 second

High accuracy in over load and dry run current

Auto and bypass mode available

User can bypass all the protection from setting

Isolated supply provided

Error messages shows on display 

RESET button provided to reset unit

Start and stop button provided to start and stop motor

Set button provided to set the current voltage and timer.

Reset button provided to reset the unit 

Factory reset facility in case of incorrect value entered.

96x96 premium instrument instrument provided,

Working :

This model automatically switch ON and switch OFF Motor.

When water level of overhead tank becomes low means water gets down from middle sensor and water is present in the underground tank or sump, motor get start automatically. The tank starts filling up. when the water level reaches to the higher level, the motor automatically gets switched off.

AUTO OFF WHEN TANK IS FULL OR SUMP IS EMPTY.

This model have dry run protection so it only start the motor if water present in underground tank or sump.

Suitable for 0.1 HP to 10 HP Motor, Protect motor from dry running.

Motor ON OFF LED indication provided.

Water Level indication provided for both tank.

Sensing element : 304 S.S sensors it is free from oxidation, long life. Any conducting wire can be use for sensor.

Auto and Manual mode switch available. In auto mode motor start and stop automatically. In manual mode user can start and stop motor by pressing start and stop button of controller. No additional wiring require to operate motor manually. 

Fully automatic, controls from underground tank to overhead tank so no man power required. Long service Life.

Input Voltage : 415 VAC

Output Voltage : 415 VAC

High accuracy in over load and dry run current

All signals passes in sensors through the AC filter circuit that improve life of sensor,

Isolated supply provided

Sensor fault detection provided, if sensor got failed LED start blinking

Electrolysis free design