Controlling a 30A contactor using Arduino Uno board

[Isala_Silva]

I am going to avoid a lead acid battery from overloading. I want to control overloading of the battery by using nearly a 30A contactor and an arduino uno board. How can i control the contactor using the arduino board ?

 

[alec_t]

Welcome to ETO!
Which specific contactor?
Is the load purely resistive or is it inductive?
What voltages are involved?
Do you have soldering skills?

 

[Isala_Silva]

I'm planning to use a 30A 3 phase contactor. The load is purely resistive. The maximum voltage involved is 230V AC. I do have some soldering skills.

 

[rjenkinsgb]

I'd suggest a simple, cheap, solid-state relay to control the contactor - many can operate from 5V with a few milliamps, and control a fully isolated high power AC load.

This type of thing; about 5mA on the control side at 5V:

Solid State Relay Module SSR-40DA 40A, 3-32V DC to 24-380V AC. | eBay

Solid State Relay Module SSR-40DA 40A 250V 3-32V DC Input 24-380V AC Output. Load Current: 40A. Quantity: 1 Pc.

www.ebay.co.uk

 

[danadak]

What is the part number of the contactor or a link to its specs ?


Regards, Dana.

 

[BR-549]

Is this replacing or modifying existing operating equipment? Is there an emergency stop switch on apparatus?

Is it necessary to disconnect line voltage to prevent over charging?

If you are using Arduino for control, what are you using for regulating the charging of the batteries?