compostverte Posted April 15, 2011 Share Posted April 15, 2011 (edited) compostverte, i dont mean to sound rude, 40 amp contactor is bit of an over kill, running 2 * 250w bulbs would be running at 2.1amps after start up I'm lucky that I have managed to scavenge good second-hand ones. They're very reassuring though and go well with my over-engineered 15 year old ballasts. (There was sufficient room inside the large steel boxes for the contactors !) Edited April 15, 2011 by compostverte Link to comment Share on other sites More sharing options...
jurassic Posted April 15, 2011 Share Posted April 15, 2011 hi jurassic you need a min of a 3 pole contactor normally open, this will do Item number: 370500371239 ebay, make sure the ballast is protected by a suitable fuse. your 4 600w bulbs use just over 10 amps. compostverte, i dont mean to sound rude, 40 amp contactor is bit of an over kill, running 2 * 250w bulbs would be running at 2.1amps after start up Thanks! Ill get bidding but why 3 pole? I thought a 3 pole was used when you switch the earth Link to comment Share on other sites More sharing options...
ilovemygtr35r Posted April 15, 2011 Share Posted April 15, 2011 (edited) Is this the right contactor for 1x 600w? http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=2809348 hi sexisarh no that has only 1 normally open contact, you need 3. Edited April 15, 2011 by jonisonzx10r Link to comment Share on other sites More sharing options...
ilovemygtr35r Posted April 15, 2011 Share Posted April 15, 2011 hi jurassic you need a min of a 3 pole contactor normally open, this will do Item number: 370500371239 ebay, make sure the ballast is protected by a suitable fuse. your 4 600w bulbs use just over 10 amps. compostverte, i dont mean to sound rude, 40 amp contactor is bit of an over kill, running 2 * 250w bulbs would be running at 2.1amps after start up Thanks! Ill get bidding but why 3 pole? I thought a 3 pole was used when you switch the earth you need a 3 pole norm open, so when contactor operates it switches L N E. make sure ballast is protected by a suitable fuse Link to comment Share on other sites More sharing options...
jurassic Posted April 15, 2011 Share Posted April 15, 2011 hi jurassic you need a min of a 3 pole contactor normally open, this will do Item number: 370500371239 ebay, make sure the ballast is protected by a suitable fuse. your 4 600w bulbs use just over 10 amps. compostverte, i dont mean to sound rude, 40 amp contactor is bit of an over kill, running 2 * 250w bulbs would be running at 2.1amps after start up Thanks! Ill get bidding but why 3 pole? I thought a 3 pole was used when you switch the earth you need a 3 pole norm open, so when contactor operates it switches L N E. make sure ballast is protected by a suitable fuse Thanks for your quick and prompt replies. I can get ahold of a 20amp 2 pole today? Will that do Link to comment Share on other sites More sharing options...
compostverte Posted April 15, 2011 Share Posted April 15, 2011 you need a 3 pole norm open, so when contactor operates it switches L N E. make sure ballast is protected by a suitable fuse surely not ? Link to comment Share on other sites More sharing options...
ilovemygtr35r Posted April 15, 2011 Share Posted April 15, 2011 hi jurassic no, you need a 3 pole contactor. make sure it has a 240v coil, and 3 normally open contacts. Link to comment Share on other sites More sharing options...
jurassic Posted April 15, 2011 Share Posted April 15, 2011 hi jurassic no, you need a 3 pole contactor. make sure it has a 240v coil, and 3 normally open contacts. Crap! I can only get a 2 pole today Link to comment Share on other sites More sharing options...
SexiSarh Posted April 15, 2011 Share Posted April 15, 2011 Is this the right contactor for 1x 600w? http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=2809348 hi sexisarh no that has only 2 normally open contacts, you need 3. Thanks mate, You couldn't point me in the right direction please for a contactor for a 600w light. Link to comment Share on other sites More sharing options...
jurassic Posted April 15, 2011 Share Posted April 15, 2011 Will a 4 pole be ok? Link to comment Share on other sites More sharing options...
ilovemygtr35r Posted April 15, 2011 Share Posted April 15, 2011 you need a 3 pole norm open, so when contactor operates it switches L N E. make sure ballast is protected by a suitable fuse surely not ? hi compostverte, you want your ballast to be earthed dont you? Link to comment Share on other sites More sharing options...
ilovemygtr35r Posted April 15, 2011 Share Posted April 15, 2011 Is this the right contactor for 1x 600w? http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=2809348 hi sexisarh no that has only 2 normally open contacts, you need 3. Thanks mate, You couldn't point me in the right direction please for a contactor for a 600w light. hi sarha Item number: 150587427146, make sure the ballast is protected by a suitable fuse. Link to comment Share on other sites More sharing options...
jurassic Posted April 15, 2011 Share Posted April 15, 2011 (edited) Will this contactor be no good for me then? Can I put 2 together? i.e. 2 on each contactor or twin them up (reposted this time with image attached) Edited April 15, 2011 by jurassic Link to comment Share on other sites More sharing options...
ilovemygtr35r Posted April 15, 2011 Share Posted April 15, 2011 (edited) Will this contactor be no good for me then? Can I put 2 together? i.e. 2 on each contactor or twin them up hi jurassic not good practice, Telemecanique are the best contactors, you need a 3 pole n/o. (im not saying you cant but not good practice, what happens if one contactor fails and that contactor was switching the earth, your left with no earth) Edited April 15, 2011 by jonisonzx10r Link to comment Share on other sites More sharing options...
jurassic Posted April 15, 2011 Share Posted April 15, 2011 Will this contactor be no good for me then? Can I put 2 together? i.e. 2 on each contactor or twin them up hi jurassic not good practice, Telemecanique are the best contactors, you need a 3 pole n/o. Im not just doing this to annoy you but what about a 4 pole? then I can have one spare pole Link to comment Share on other sites More sharing options...
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