Quote from: jtoomim on July 26, 2014, 08:19:13 PM

Quote from: ZiG on July 26, 2014, 05:44:03 PM

@ 220V you will need ONLY 1 (one) 15A circuit ...as SP30 is rated @ 2700W / 220V = 12.3A ONLY... Grin

ZiG

SP30s are a continuous load (they are expected to run for 3 hours or longer at a time at full load), which means that their loads have to be multiplied by 125% before comparing the load to the circuit ampacity.

125% * 2750W / 220V = 15.0 amps. There's a chance you might be able to put that on a 15 amp circuit without tripping any breakers, but you should be planning for the worst, not for the best. Typical circuit breakers will have a moderate to high chance of tripping if they are loaded at a continuous 80% of their rated capacity.

http://advanceelectricaltraining.com/advance-electrical-training/continuous-loads-decoded/

The 125% (or 80%) rule is all over the place in the National Electric Code. It's also how circuit breakers generally work. You can get away with loading circuits higher than that sometimes, but it's basically the electrician equivalent of overclocking. You shouldn't do it unless you have a back-up plan and don't care much about breaking laws and tripping breakers.

Thanks a lot for clearing this out for me :-)

I have just peeked into my fuse box and it says that the circuit breaker for the mains sockets is 32A.

How many SP30s do you think I could plug in before the fuse goes off?? lol