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M-400A
Here's a day shot of an older GE M-400A that's still mercury and is part of [url=http://www.galleryoflights.org/mb/gallery/displayimage.php?pos=-4191]this[/url] row of lights.

M-400A

Here's a day shot of an older GE M-400A that's still mercury and is part of this row of lights.

P4240583.JPG P4240583.JPG P3191502.JPG P4240583.JPG tmp_16935-88726-1-85181605.jpg
File information
Filename:P3191502.JPG
Album name:joe_347V / Southern Ontario Streetlights
Company and Date Manufactured:General Electric
Model Number:M-400A
Wattage:400w
Lamp Type:Mercury vapour
Filesize:99 KiB
Date added:Apr 01, 2011
Dimensions:1600 x 1200 pixels
Displayed:125 times
Color Space:sRGB
Contrast:0
DateTime Original:2011:03:19 12:43:32
Exposure Bias:1 EV
Exposure Mode:1
Exposure Program:Program
Exposure Time:1/250 sec
FNumber:f/10.8
Flash:No Flash
Focal length:41 mm
ISO:160
Light Source:Flash
Make:Olympus Imaging Corp.
Max Aperture:f/3.5
Model:SP600UZ
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=5817
Favorites:Add to Favorites

Comment 1 to 12 of 12
Page: 1

streetlight98   [Apr 01, 2011 at 09:12 PM]
Wow, this one's still gray. The ones here are 250 and 400w HPS (split doors here BTW) and all of the paint is long gone.
NiMo   [Aug 16, 2011 at 02:55 PM]
I'd have to know whether the other lights have P-cells or not. If they do, chances are this one has an Astrodome installed.
joe_347V   [Aug 16, 2011 at 02:56 PM]
It's on a group relay system.
NiMo   [Aug 16, 2011 at 02:59 PM]
OK, that's called a Remote Control Outdoor Circuit or RCOC for short. Basically, a master P-cell linked to a lighting contactor switch to activate a series of lights. Not a series circuit per se.
joe_347V   [Aug 16, 2011 at 03:00 PM]
I never said it was on a series circuit, I've seen the cylindrical control relay and the PC that controls it on a few poles upstream.
GullWhiz   [Aug 16, 2011 at 03:04 PM]
We have older setups in my area that are multiple wired but controlled by 1 PC....(that is for wooden pole mounted ones) They are connected to a relay system that has a special mechanical moving parts inside with a 30 or 60 amp fuse. The photocell just activates a switching system that has magnetic mechanical parts. The photocell is not at all connected to the streetlights, its the magnetic switch that connects and disconnects the row of streetlights.
joe_347V   [Aug 16, 2011 at 03:08 PM]
I've have a close up shot of the relay it's a EPAC Mercury Wetted Relay

Some municipal setups here still use relays but most newer setups now have their individual PCs.

MTO lighting is usually always relay controlled.
GullWhiz   [Aug 16, 2011 at 03:11 PM]
I have 3 relays in my collection...2 identical 30 amp ones (almost) and one 60 amp
joe_347V   [Aug 16, 2011 at 03:14 PM]
Interesting, are they the cylindrical version or the boxy version.
GullWhiz   [Aug 16, 2011 at 03:28 PM]
Mine is this one but I have seen those cylinder shaped ones in use in my area also. The 60 amp I have is physically bigger and is all cast aluminum instead of the brown plastic (not sure what type of plastic but it looks VERY new inside!
joe_347V   [Aug 16, 2011 at 03:32 PM]
Nice, I don't think I've seen the boxy style here yet, the cylinders are a lot more common here.
joe_347V   [Sep 30, 2017 at 02:08 AM]
This is still there, although the mercs and HPS lights on the side streets have been LED'd.

Comment 1 to 12 of 12
Page: 1