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Hi all,

I was wanting to fit a 3 phase timer switch that could control 2 x 3 phase glass kilns independently (each drawing 40A a phase). The combined load is too great to run them simultaneously and they will need to be run separately. Ideally I would like to run one from say 10PM till 1AM and the other 2AM till 5AM without getting out of bed to do it manually. I am in Australia and the reason for this is off peak electricity prices are a third of day rate prices. I was wanting to know if there was such a switch or would I be better off running 2 x single phase timers controlling 3 phase contactors? Or someone may have a better idea altogether. I work in distribution so my knowledge of commercial equipment is limited to say the least.

Cheers Nick.
 

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Hi all,

I was wanting to fit a 3 phase timer switch that could control 2 x 3 phase glass kilns independently (each drawing 40A a phase). The combined load is too great to run them simultaneously and they will need to be run separately. Ideally I would like to run one from say 10PM till 1AM and the other 2AM till 5AM without getting out of bed to do it manually. I am in Australia and the reason for this is off peak electricity prices are a third of day rate prices. I was wanting to know if there was such a switch or would I be better off running 2 x single phase timers controlling 3 phase contactors? Or someone may have a better idea altogether. I work in distribution so my knowledge of commercial equipment is limited to say the least.

Cheers Nick.
I think it would be cheaper to run contractors .

Welcome to the forum.:thumbsup:
 

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I'd go with a pair of single-phase single-channel time switches and a pair of contactors.
You can get one single time switch that will do two timing zones, but the only saving is likely to be in switchboard space.
 
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