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Westinghouse/Cooper 100W/S54 HPS RMA Utility Grade NEMA-Head

Westinghouse/Cooper 100W/S54 HPS RMA Utility Grade NEMA-Head

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Westinghouse/Cooper 100W/S54 HPS RMA Utility Grade NEMA-Head

This luminaire is confused...it doesn't know if it should be a Westinghouse or a Cooper! Here's the reality...it's a Westinghouse ballast tank and arm, along with a Cooper ballast and optical assembly. This was originally a 175W/H39 MV, but unfortunately the secondary on the ballast was blown, and the only available replacement ballast that I could locate was a Cooper 100W/S54, 120V. The new ballast is a direct fit, and comes with a new socket with terminal block connections. The only original electrical component is the P/C socket. All fasteners have been replaced with stainless steel equivalents.

101-2.JPG 250W-S50_PB.JPG RMA.JPG AEC_175W_NEMA-LIGHT.JPG

Light Information

Light Information

Manufacturer:Westinghouse Electric Corporation / Cooper Industries
Model Reference:RMA
Lamp
Lamp Type:High Pressure Sodium
Fixture
Fixture Type:NEMA-Head
Ballast Type:S54
Socket Type:E39 (Mogul)
Photocell Type:Twist-Lock
Arm Type:1-1/4" Steel
Electrical
Wattage:100W (130 Input Watts)
Voltage:120V
Current:1.08A
Physical/Production
Factory Location:Vicksburg, MS
Fabrication Date:1980's
Application/Use:Security Lighting

File information

File information

Download: Download this File
Filename:RMA.JPG
Album name:WestinghouseCeramalux / Area Style Luminaires
Keywords:Lanterns
File Size:116 KB
Date added:May 02, 2019
Dimensions:864 x 648 pixels
Displayed:87 times
Date Time:2019:05:01 17:35:51
DateTime Original:2019:05:01 17:35:51
Exposure Bias:0 EV
Exposure Time:1/30 sec
FNumber:f 3.3
Flash:No Flash
Focal length:4.7 mm
ISO:125
Make:Panasonic
Model:DMC-TZ5
Software:Ver.1.0
White Balance:0
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streetlight98
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Mike McCann


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May 02, 2019 at 04:53 PM Author: streetlight98
Nice! Pretty cool that Cooper essentially kept the design of the RMA the same when they took over Westinghouse's line. Makes repairing true Westinghouse lights a little easier! I have an RMA from 1968. It's a 120V 100W MV.

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

fluorescent lover 40
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Lights are awesome! :)


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May 02, 2019 at 04:59 PM Author: fluorescent lover 40
Nice light!

Power provider: Southern California Edison (SCE)

-Date decoder of some US lamps 1960-present.
-Switch and receptacle collector.
-I'll save what I can! Smiley

WestinghouseCeramalux
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May 02, 2019 at 05:18 PM Author: WestinghouseCeramalux

Nice! Pretty cool that Cooper essentially kept the design of the RMA the same when they took over Westinghouse's line. Makes repairing true Westinghouse lights a little easier! I have an RMA from 1968. It's a 120V 100W MV.


Agreed...it is nice that Cooper essentially kept the old Westinghouse design alive.

I had two 175W RMA's from the same era as yours in my first collection...

Your mission - should you choose to accept it - is to save unique and rare HID lighting before it's all scrapped.

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May 02, 2019 at 05:23 PM Author: WestinghouseCeramalux

Nice light!


If I ever install this outdoors, I plan on painting the tank and arm with hammered silver paint that Westinghouse used on the OV series cobra-heads...I like the look of matching components.
(I'd also use this luminaire with a Westinghouse Ceramalux C100S54/D lamp...which I have plenty of.)

Your mission - should you choose to accept it - is to save unique and rare HID lighting before it's all scrapped.

streetlight98
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Mike McCann


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May 02, 2019 at 05:36 PM Author: streetlight98
Rust-Oleum "Aluminum" would be a more accurate match for painting the arm, though a hammertone arm would look cool. I had repainted my RMA with hammered silver paint. Westinghouse never seemed to have used a quality paint finish, as every Westinghouse I've seen has just about no paint left on it! At least being silver the worn paint blends in well. With the gray, it sticks out like a sore thumb when the paint wears away.

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

WestinghouseCeramalux
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May 02, 2019 at 05:46 PM Author: WestinghouseCeramalux

Rust-Oleum "Aluminum" would be a more accurate match for painting the arm, though a hammertone arm would look cool. I had repainted my RMA with hammered silver paint. Westinghouse never seemed to have used a quality paint finish, as every Westinghouse I've seen has just about no paint left on it! At least being silver the worn paint blends in well. With the gray, it sticks out like a sore thumb when the paint wears away.


Yeah, it would look cool. Maybe using a clear coat as well would prolong the life of the hammertone paint.

Your mission - should you choose to accept it - is to save unique and rare HID lighting before it's all scrapped.

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