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khlgupta
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Join Date: Aug 2014
Posts: 1

Electrical Heater

07/21/2016 2:13 AM

Please suggest which better option air heater in oven for safety fuses or MCCB?
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

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#1

Re: Electrical Heater

07/21/2016 2:26 AM

There may be small (dis)advantages either way as to safety, but cost and convenience will probably weigh more.

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SolarEagle
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#2

Re: Electrical Heater

07/21/2016 2:40 AM

Probably should have both, and an over temperature safety cut-out...

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Mr. small
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#3

Re: Electrical Heater

07/21/2016 6:47 AM

MCCB can be a convenience.

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Phys
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#4

Re: Electrical Heater

07/21/2016 9:21 AM

In the "bad old days" the fuses had an advantage over the breakers when it came to short circuit current interruption, but not anymore. We've switched to breakers for anything that might need to be shut off occasionally for testing/maintenance. They cost more, but the switching capability is far easier than pulling fuses.

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JRaef
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#5

Re: Electrical Heater

07/21/2016 8:30 PM

Depends on a number of factors not in evidence. For example if the available fault current is higher than what the MCCB is rated for, fuses may be the only option. There are other issues beside just that.

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