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Sierra Electric Double Pole Mercury Switch

Sierra Electric Double Pole Mercury Switch

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From the 60's or before. Has a sort of sparkle ink for on and off like some of my newer Sierra mercury switches.

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Light Information

Light Information

Manufacturer:Sierra Electric
Voltage:125-250 Volts
Current:5-10 Amps
Factory Location:USA
Fabrication Date:60's or before

File information

File information

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Album name:lifeguard / Switches
File Size:656 KB
Date added:Aug 26, 2019
Dimensions:2464 x 1848 pixels
Displayed:21 times
Date Time:2019:08:26 18:51:55
DateTime Original:2019:08:26 18:51:55
Exposure Bias:0 EV
Exposure Time:1/120 sec
FNumber:f 1.9
Flash:No Flash
Focal length:2.91 mm
White Balance:0
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Aug 27, 2019 at 08:34 AM Author: Fluorescent05
What would this be used for?

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

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Mike McCann

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Aug 31, 2019 at 02:32 PM Author: streetlight98
In a home it could be used as a service disconnect for a 240V air handler in an attic. That's the only time I install double pole switches in houses. But they can be used for controlling any 240V load. Another application in a place with lots of lighting would be for controlling a multiwire lighting circuit in a retail store or something (suppose the 120V troffers are supplied by one 20A 3-wire circuit, so in effect two 20A circuits sharing a neutral). Of course, with that set-up you can use two single pole switches since there are no 240V loads but if you wanted all the lights on one switch that's how you'd have to do it unless you wanted to use a contactor, which will use additional power.

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