Generating 220VDC 4A power for Contact Rating Test

I need to generate 220V DC rectified from mains with suitable capacitor. I need to load my four micro switches in parallel with 4A load (with each node 1A). Can anybody help me choosing the values of capacitor and the diode for 4A. I've already blown off the Diodes BY127+330mfd which i used to connect earlier with 1A load.

I'd appreciate some immediate help... thanx in advance guys...

You can use Digikey's parametric search to find a diode or bridge rectifier package that will meet your needs. You don't have to buy from digikey but it will suggest parts that meet your requirements.
In order to determine the size of the capacitor you have to define the allowable DC voltage variance.

https://www.tpub.com/neets/book7/27e.htm

may help in determining the exact value you need, if cost/size isn't too much of an issue larger is almost always better, it would be safe to say however that if you quadruple the capacitor value you should be close to what you need since you're quadrupling your current, the ESR of the cap needs to be the same or preferably lower though.