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Topic Title: Maximum no of Halers H2 LED Fittings per circuit
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Created On: 03 July 2013 09:05 PM
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 03 July 2013 09:05 PM
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sparkiemike

Posts: 1537
Joined: 24 January 2008

In the past the Halers instructions stipulated a max of 15 fittings, I see that the instructions now state

For maximum number per circuit breaker, use the recommended quantities as for a standard mains 50W halogen lamp.


Do I understand this correctly that the maximum number of H2 fittings would now be 27 for a Type B 6A MCB at a nominal voltage of 230V. (i.e. 50W x 27 = 1350W/230V = 5.8A)?
 03 July 2013 09:16 PM
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alpelec

Posts: 89
Joined: 04 November 2008

I had this very same problem a year ago. I put 16 on a 6amp B type mcb. Every so often after a few switches on & off they would trip. I couldn't understand it at the time due to there low wattage rating. I guessed it was a 'starting current' problem, so I spoke to Halers and they seem to be aware of it. I had to change the mcb to a C type to cure it. It was a new install and all tested but now no problems.
 04 July 2013 09:38 AM
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AJJewsbury

Posts: 11374
Joined: 13 August 2003

Don't 50W halogens themselves have a reasonably high switch-on surge? (the cold filament will have a much lower resistance). Probably not a problem if they're switched in small groups (e.g. typical domestic), but if they're all switched together...
- Andy.
 06 July 2013 01:20 PM
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sparkiemike

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deleted

Edited: 06 July 2013 at 01:40 PM by sparkiemike
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