United Electric 12 Series hazardous location switches are ideal for operation in tough applications where space is at a premium. A Belleville spring assembly provides vibration resistance and prolonged switch life. Its small conical washer transfers motion to a hermetically sealed 1 or 5 amp microswitch. The Belleville spring snaps over when pressure is applied and snaps back on pressure release.
The 316 stainless steel enclosure and hermetically sealed switch provide rugged protection from the environment. The easily accessible adjustment wheel allows in-line field settings. A 1 Amp switch is available for use in intrinsically safe circuits. Approved for use in hazardous locations worldwide, the 12 Series is installed within applications ranging from offshore oil rigs to rotating equipment, and more.
Click the file icon to view the file online, or right-click on the file icon and select "Save Target As..." to download the file to your computer for later viewing.
Tip: If you want to print a large file, download it to your PC first.
- United Electric Spectra 12 Vibration-Resistant Compact Mechanical Switch Specification Datasheet
Use this table to find the right model for your application. Don't see the option you need? Call a Lesman sales specialist at 800-953-7626
Make a selection from each table section below. A finished model number
looks like this: 12S-H-D-M-R2/M430
Description Catalog Number Spectra 12 Switch, Stainless Steel Housing 12S 5 Amp Electrical Rating
1 Amp Electrical Rating
Connection 1/2" NPTM Electrical conduit
M20 Electrical Conduit
Model -130° to 120°F, 3/8" x 4-7/8" Bulb
0° to 150°F, 3/8" x 7-1/4" Bulb
50° to 300°F, 3/8" x 4-7/8" Bulb
150° to 650°F, 3/8" x 4" Bulb
0° to 225°F, SS Immersion Stem
200° to 425°, SS Immersion Stem
Options Factory Set Switch
Stainless Steel ID Tag and Wire
DIN Connector, 4 Terminal
Mounting Bracket Kit
Lesman Instrument Company on YouTube
Video is a great way to learn about instruments and technology, and it's available whenever you need it. Watch step-by-step instructions on how to configure a transmitter, tune a controller, or troubleshoot a safety valve. We'll post videos we create, and those our manufacturer partners share with us, so you don't have to look in multiple places to find the video training you need.
Subscribe to Lesman's YouTube channel, and you'll get email notifications as soon as we add new training videos and webinars.