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sujinvipin
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Join Date: Aug 2011
Posts: 93

Contactor

01/17/2012 8:38 AM

iF I HAVE APPLICATIONS SUCH AS PLC, SAFETY CONTROLLER , RFID etc Can i use contactor/RELAY of utilization category DC-1?
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TonyS
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#1

Re: Contactor

01/17/2012 9:28 AM

STOP SHOUTING FIRST!

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kvsridhar
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#2

Re: Contactor

01/17/2012 10:35 AM

What do you think the nature of your load is ? Resistive, inductive, capacitive....what?

You are not that new here ... you should know better than to use uppercase.

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electricalexpert65
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#3
In reply to #2

Re: Contactor

01/17/2012 10:57 AM

KVS! I think PLC, etc. falls under Utilisation category DC-12 (Control of Solid State Loads with Isolation by Opto-couplers) vide Clause 4.4 (Table-1) of IEC 60947-Part 5 - Section 1.
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kvsridhar
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#4
In reply to #3

Re: Contactor

01/17/2012 12:09 PM

Thanks, but my intention was to make the OP do his own work. Even if one doesn't have a $1000 IEC standard with one, every contactor catalog gives the IEC Utilisation Category table. All one has to do is download and read.

Specific to your view, perhaps yes, DC12 may be the right one. i designed and tested everything in DC to DC13 anyway, why quibble ? Not much benefit in cost.

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