Relay as a Contactor - type

[carlyai]

Hi, I need a few relays. 220v, 10A max. for some pump power switching. There are many available on Shopee and Lazada. 

Anyone recommend one?

Also some diodes for back emf. Last time I played with diodes there was a 1N2002 I think. Any recommendations?

Thanks.

 

[Crossy]

If you are switching 10A pumps you need to look for contacts at least double that, start-up surge and all that.

 

Protection diodes use 1N4007 cheap and idiot proof (I'm assuming you will be using DC coils, AC coils don't need).

 

Get relays with plug-in bases then when they fail ...

 

[carlyai]

2 minutes ago, Crossy said:

If you are switching 10A pumps you need to look for contacts at least double that, start-up surge and all that.

 

Protection diodes use 1N4007 cheap and idiot proof (I'm assuming you will be using DC coils, AC coils don't need).

 

Get relays with plug-in bases then when they fail ...

 

A couple of projects...some AC and DC. Small pumps, largest 300 W.

[Crossy]

2 minutes ago, carlyai said:

A couple of projects...some AC and DC. Small pumps, largest 300 W.

 

10A relays then.