Lighting Contactors | Information by Electrical Professionals for ...
2024年10月18日 · I can get a DP 30amp 120v coil for $25 will still need a housing but lighting contactor same specs with housing $300plus that seems like a drastic difference and if you needed several the savings could add up. That all said I will go with a houses lighting contactor this is a very good customer of mine and I don’t want any problems down the road.
Lighting contactor terminology. | Information by Electrical ...
2009年8月21日 · I usually use a 2- or 3-pole contactor to replace burned contacts in multi-pole lighting contactors. The customers have invariably been pleased that I offer a less expensive option to direct replacement of a 12-pole contactor because of a couple of bad contacts, even if I need to add an enclosure.
Does it have to be a Lighting Contactor? | Information by Electrical ...
2017年9月14日 · Supermarket. The lighting is all being upgraded from Fluorescent to LED. Also the lighting is now going to be controlled using a program, (they were turning them off via breaker:roll:), so I am installing contactors. Don't see why I can't use general purpose contactors. The loads are...
Lighting contactor troubleshooting | Information by Electrical ...
2005年7月13日 · Re: Lighting contactor troubleshooting The "shading coil" on a magnetic contactor is used to retard the rate of change of the magnetic field caused by AC. this retarding action allows the electro-magnet to stay on as the voltage crosses zero. Without it the magnet would drop in and out with a loud "60 cycle" chatter.
LED lighting and lighting contactors | Information by Electrical ...
2024年11月23日 · For the first time in a long time I had to buy a lighting contactor. My employer bought a surplus number of the "up to 30 amp per pole, up to 12 pole" GE/Seimens/Eaton style pre-LED rated version years ago and that surplus ran out. To my amazement / horror these contactors are now only rated for a measly 10 amp 120v / 3 amp 277v for LED loads.
Lighting Contactor Stuck | Information by Electrical Professionals …
2005年12月3日 · Re: Lighting Contactor Stuck I don't have a C-H catalog, but I can say that there is a good possibility that there is a mechanical problem with the contactor. It's not uncommon at all for contactors to stick or bind in the closed position, especially the older they get. I recommend disassembly of the contactor and examination of all sliding ...
help on lighting contactor circuit | Information by Electrical ...
2012年5月8日 · In the paragraph about current ratings, it states that "All Class 8903 lighting contactors are fully rated for tungsten, ballast and resistance loads. This means that a contactor can be used to control a load up to its full nameplate rating. Derating of the contactor is not necessary, as is the standard practice with circuit breakers and fuses."
motor contactor vs lighting contactor | Information by Electrical ...
2009年1月9日 · A NEMA Size 1 lighting contactor is rated for 30A fluorescent lighting and 20A for "tungsten lamp loads". Another difference is in the design for additional features and accessories. Lighting contactor designs include an option for mechanically held (latching) construction that is not needed in a motor starter.
Lighting contactor | Information by Electrical Professionals for ...
2009年10月14日 · Can we use 12 pole lighting contactor to feed both 120V and 277V lighting circuit? (i.e. pole 1 -7: serving (8) 277V lighting circuits, pole 8-12: feed (5) 120V lighting circuit)? Will it work or we have to use two separate contactors one for 277V circuits and one for 120V circuits? Is there...
lighting contactor | Information by Electrical Professionals for ...
2016年5月22日 · Hi,I want to install a fuse block to protect both sides of contactor coils which keep burning up in power outages that happen quit often at a condo complex.Each building has a cabinet with 3 or 4 small 20a 3pole lighting contactors in them. The coils are very small and i believe it takes about 1...