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Top housing wiring diagram

Top housing wiring diagram

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Heres the top housing wiring diagram for the M250-A2

20160707_163425.jpg 20160625_132344.jpg 20160625_090821.jpg 20160625_090716.jpg

Light Information

Light Information

Manufacturer:GE
Lamp
Lamp Type:HPS
Electrical
Wattage:100 watt

File information

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Filename:20160625_090821.jpg
Album name:Cool white 79 / New album
Keywords:Gear
File Size:275 KB
Date added:Jun 25, 2016
Dimensions:2465 x 1386 pixels
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streetlight98
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Mike McCann


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Jun 25, 2016 at 06:39 PM Author: streetlight98
These diagrams GE used to include with the fixture are so hard to follow lol. Nowadays with GE, the multitap ballasts all just have four spades (120, 208, 240, 277) and you just slide the wire onto the spade that corresponds to the voltage tap you want. Can't get simpler than that! I see this one has the ability to be wired as 240V with a 120V PC. The MV fixtures here were 240V with 120V PCs (but they were single tap 240, so no way to wire them for 120V). The reason the MVs were 240V here is because with 240V on MV, you can use a simple reactor ballast (one coil, also called a choke). So it was a money-saving thing. I don't know why they insisted on using 120V PCs with the lights though. When they went HPS in the 90s, they used 120V since the lower wattage HPS fixtures use chokes on 120V. For 200W-400W HPS, you'd still need 240V for a choke, but I think they still used 120V across the board to keep things simpler.

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ace100w120v
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Nov 06, 2016 at 04:05 PM Author: ace100w120v
Yeah, I always find wiring diagrams difficult to follow in general LOL. Mike, this winter I'm going to try to get that M-400A going if I have time. You might have to help me getting it wired to power, I frankly have no idea what voltage/phase it's supposed to be.
streetlight98
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Mike McCann


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Nov 06, 2016 at 06:10 PM Author: streetlight98
Yeah I'll help as much as I can. In the mean time have you had luck finding a 250W HPS lamp? There should be a paper label inside the upper housing somewhere that has a GENERAL (GE) ELECTRIC header on it and that will have the catalog number, wattage, ANSI lamp code, date code, max current draw, voltage(s), voltage wired for, and an abbreviated wiring diagram showing the customer connections. Those paper labels commonly rotted apart over the years in a lot of their fixtures though so it might not be legible.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

ace100w120v
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Nov 06, 2016 at 06:35 PM Author: ace100w120v
Yeah, this thing sits outside upside down, so I'm sure the label is all but illegible. No luck on a 250w lamp and I didn't bring one of my 400s with me either when I headed off to college. I've actually told my dad I'll give him my other 400, he has a couple fixtures that use 400w lamps.
streetlight98
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Mike McCann


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Nov 06, 2016 at 08:08 PM Author: streetlight98
Ah maybe you'll have luck finding one at that place you've gone to in the Fairbanks area or something. Speaking of 250W HPS, I might be buying a pair of removed 250W HPS GE M-250R2s for $50/pair off Craigslist this week. I'm waiting for the seller to get back to me with a picture of the inside of one of the lights and then I'll ask for a time and place to meet. He's got like six and asking for $30 a piece but I offered $50 for a pair and they said "that's fine". lol

I already have a brand-new 250W HPS M-250R2 and have a used 70W HPS M-250R2 but now I'll have two more lol. I plan on giving one to my high school construction teacher though since he had wanted a street light for the backyard of his new house. I'll have to see if he still wants it. Or else I might convert one to low-wattage PSMH (and keep the other original...) I'm indeed a "street light hoarder" lol. I couldn't help it. The price is right and the listing says the seller is in North Smithfield, which is like 20 minutes away from me. I don't think lamps or PCs are included though. I'm willing to bet these are RIDOT lights, since the listing went up not too long after RIDOT had LED'ed that area. Here's the listing.

If these are indeed RIDOT lights, they're probably from this interchange, Exits 8A-B on Interstate 295 for RI Rte 7/Douglas Pike.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

ace100w120v
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Nov 06, 2016 at 09:01 PM Author: ace100w120v
Which place? That Sentry? Or the dump?
streetlight98
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Nov 06, 2016 at 09:54 PM Author: streetlight98
Whatever place you've been finding stuff. I don't remember where but didn't you find some lighting stuff somewhere?

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

ace100w120v
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Nov 06, 2016 at 10:05 PM Author: ace100w120v
Which stuff? I make good scores at the transfer station RIGHT ACROSS THE STREET from campus, and there's an awesome Sentry hardware store here with all kinds of NOS stuff, member Icefoglights and I have been all over that place, but not together. Then of course there's Home Depot where I bought the case of F40 daylight deluxe and some basic wiring stuff.
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