Harvey_51 Posted July 30, 2009 Share Posted July 30, 2009 Hi, Is it ok to power 2 mac 500's and one mac 600 off a trelco? I have looked on the martin website and the max current draw for each mac is under 5 amps each. so pretty much a 15A draw is this ok? Thanks Jordan Link to comment Share on other sites More sharing options...
DanHerbert Posted July 30, 2009 Share Posted July 30, 2009 Does this take into consideration the current draw upon lamp strike? Obviously if three are striking at the same time this may cause issues.... Link to comment Share on other sites More sharing options...
adam2 Posted July 30, 2009 Share Posted July 30, 2009 As regards the starting current, that should be fine provided the lamps are struck one at a time and not all at once. As regards the running current, providing that this is in total less than 15 amps, it should be fine, provided that the 15 amp lead is made with at least 1.5mm flex, as it should be.The fact that the lanterns are fitted with 6.3 amp fuses does not mean they use 6.3 amps, that would result in risk of the 6.3 amp fuses blowing in normal use, which does not often happen. The current drawn by a discharge lantern is not readily calculated, and I would advise against too much debate or speculation re this. Maplin sell a plug in power and energy monior very cheaply, by means of which the running current may be measured. Link to comment Share on other sites More sharing options...
paulears Posted July 30, 2009 Share Posted July 30, 2009 Moderation: The OP is aware of the need to run moving head fixtures from hard(non-dim) power. a large number of posts have been removed as they are all covering this ground. Link to comment Share on other sites More sharing options...
AndyJones Posted July 31, 2009 Share Posted July 31, 2009 One thing to note is that AFAIK All macs have a delay on the lamp on command that corresponds to the DMX address. So the higher the address the later it will lamp on. So it shouldn't affect a trelco if you try to get them to all lamp on at once. Regards, AndyJones Link to comment Share on other sites More sharing options...
Harvey_51 Posted July 31, 2009 Author Share Posted July 31, 2009 Hi, Thanks for all the replies. Yes they are on 15A however they have a hard porwer supply. they are only 15a because the are wired into the 15A bars which then have a 15A plug at the patch bay. I just wanted to make sure it would not overload the trelco as I was noit sure what they were rated to. Thanks Jordan Link to comment Share on other sites More sharing options...
jonathanhill Posted July 31, 2009 Share Posted July 31, 2009 I just wanted to make sure it would not overload the trelco as I was noit sure what they were rated to. Rated voltage and current shoud be on the back of the trelco. Note that in SA, the good old 15A plug and socket is actually rated at 16A. Link to comment Share on other sites More sharing options...
LeeStoddart Posted July 31, 2009 Share Posted July 31, 2009 As has already been said - the run mode current of three MACs is well within 15A so no problem with that and the only concern area is on the potential combined strike current. However I'll add a slightly different concern - trelcos which we recently discarded had overload protection built into them - visible as a small white reset button. Rather like having a 13A fused plugtop up in the rig these were not the most useful of devices. I think it was some sort of thermal cut out and seemed to trip far too easily - certainly before we got to 15A. I'd only ever use them for 3*500W or 3*650W but they did seem to have an annoying habit of tripping. Link to comment Share on other sites More sharing options...
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