Starter Board

Panel Board
Panel Board
Panel Board
Panel Board

Tried,Tested and Trusted Start with Siemens Agriculture Starters

For more than 125 years, Siemens has been developing and manufacturing world-class, control products. Siemens offers a wide range of starters to cater to diversified demands from Agriculture Sector .These products are specially designed to provide smart, easy and reliable motor starting solution.

They employ tried and tested Siemens contactors and relay and this ensures the right start for motors requiring direct online starting or star delta starting.

The most economical and popular method of starting squirrel cage induction motors, is direct-online, where the starter is connected directly across the supply. However, the starting current at the moment of switching Direct-on-line can be as high as 6-8 times the rated current.


The DOL starter up to 10 HP is fitted with 3TS3 Contactor. This contactor is specially designed by Siemens considering the requirements of industry as well as agriculture. Considering the specific need of the agricultural pump set applications, Siemens has designed a special wide band coil (200-400V). This coil operates reliably even when there is wide voltage fluctuation.

The Starters will now come with 3TS Contactors which will in turn make the starter more reliable with enhanced electrical and mechanical life.

Bimetal Overload Relay:

The RAJA direct-on-line starter is fitted with 3UW5 relay. These relays are computer calibrated and therefore, offer accurate protection. The main benefit of this bimetal relay is the built-in single phasing protection in addition to the overload protection. Relay has Automatic reset function after cooling time of 4 sec approx, completely reduce Manual dependency.

Push buttons:

Push buttons are used for switching ‘ON’ and ‘OFF’ the starter. Twin push button comes with ‘Locked Off’ feature which helps in avoiding nuisance switching ON of pump.


In DOL starting, the ‘ON’ push button is pressed, which energizes the contactor coil, thus switching on the circuit. When the OFF’ push button is pressed, the contactor is de-energized, switching off the circuit. The bimetal relay under normal functioning of motor plays no active part in the starter. But under overload, single phasing or locked rotor conditions of Motor, the bimetal relay cuts-off the supply to the contactor coil, tripping the circuit. The contactor itself provides the necessary ‘no- voltage’ protection in so far as it will drop out in the case of a supply failure, and for restarting on resumption of supply, the ‘ON’ push button will have to be pressed again.

Brand Name

Seimens Ltd.

Sold By

KB Engineering Pvt. Ltd.

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