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United Electric Controls
A Message From The CEO
United Electric Controls has more than 80 years of proven experience providing rugged pressure and temperature electromechanical and electronic switches to Chemical & Petrochemical, Power, Water & Wastewater and Oil & Gas industries, as well as many other challenging OEM applications.
UE pressure switches, pressure transducers and pressure transmitters, temperature switches and temperature sensors are designed for rugged, industrial environments.
To learn more about our industry solutions please visit our Whitepapers page.
United Electric Controls has more than 150 distributors worldwide. Please visit our distributor locator page to find a distributor near you.
Three Manufacturing Divisions
Lean manufacturing for maximum productivity
Operational excellence (OpX) reduces waste
One-piece-flow for optimum manufacturing efficiency
Technical Sales: 617.923.6977
United Electric Controls Company
180 Dexter Ave
Watertown, MA 02472-4200
Discover how the Vanguard WirelessHART gas detector has solved customers’ challenges related to life-safety and environmental monitoring across a variety of industries.
117 Series Hermetically Sealed Pressure Switches
Vacuum Switches, Differential Pressure Switches and Temperature Switches
Approved for Division 2, Zone 2 hazardous and corrosive atmospheres, and with optional Zone 0 intrinsic safety compliance,
the 117 Series can be used to measure vacuum, pressure, differential pressure, or temperature in a variety of applications. The
rugged, one piece enclosure features a slanted cover for wiring accessibility to the enclosed terminal block that is wired to either
a SPDT or DPDT hermetically sealed microswitch. All welded, stainless steel pressure connections and sensors provide superior
corrosion resistance – NACE compliant – and fire-safe protection within the harshest environments.
The 117 Series is an ideal choice for the most demanding applications; typically steel and aluminum
mills, chemical and petrochemical plants, pulp and paper mills, wastewater treatment plants, midstream and downstream oil & gas, and pharmaceutical plants.
Division 2, Enclosure Type 4X
SPDT or DPDT hermetic switch output
Terminal block wiring
• Pressure & Vacuum: 30 "Hg Vac to 3500 psi
• 1 bar Vac to 241 bar
• Temperature: -120 to 650 ºF
• -85 to 340ºC
• Differential Pressure: 0.8” wed to 500 psid F
• 2 mbar to 34.5 bar
Approvals: UL, CSA, CENELEC, CE, NACE
Epoxy Coated Type 4X Enclosure and Stainless Steel Component Parts
Hermetically Sealed Snap Switch, SPDT or DPDT Output
Terminal Block Wiring
Tamper-Resistant Set Point “Lock”
30” Hg Vac to 3500 psi (-1 to 241,3 bar)
300 “wc vacuum to 250 “wc pressure
(-746, 7 to 622,3 mbar)
0.8 “wcd to 500 psid (2,0 mbar to 34,5 bar)
-120 to 640°F (-84.4 to 337.8°C)
Storage Temperature -65° to 160°F (-54 to 71°C)
Ambient Temperature -40° to 160°F (-40° to 71°C); except models 520-525, 540-548, 700-706: 0 to 160°F
Limits (-18 to 71°C); set point typically shifts less than 1% of range for a 50°F (28°C) ambient
Set point Temperature models: ± 1% of adjustable range Pressure models 171-174, 218,
Repeatability 358-376, 520-535, 540-543 and 700-706: ± 1% of adjustable range; models 183-194,
544-548, 483-494, 565-567: ± 1.5% of adjustable range Internal set point lock on all
Shock Set point repeats after 15 G, 10 millisecond duration
Vibration Set point repeats after 2.5 G, 5-500 Hz
Enclosure Die cast aluminum, epoxy powder coated, gasketed; captive cover screws; anodized
Enclosure Classification Enclosure Type 4X
Switch output One SPDT hermetically sealed snap action switch; switch may be wired “normally open”
or “normally closed”; DPDT (option 1190/1195)
Electrical rating 11 A 125/250 VAC resistive; 5 A @ 28 VDC; 1 A @ 48 VDC; 1/2 A @ 125 VDC; switch
contacts gold flashed
Weight 1.5-6.5 lbs. Varies with model
Electrical Connection 1/2” NPT (female); two 7/8” diameter knockouts
Pressure Connection Models 218, 358-376, 700-706: 1/4” NPT (female); models 171-194, 483-494, 520-535:
1/2” NPT (female); models 565-567: 1.5” flush mount connection (mates with Tri-Clamp®
fitting systems), models 540-548: 1/8” NPT (female)
Temperature Assembly Bulb and capillary: 6 feet; 304 stainless steel Immersion stem: nickel-plated brass
(standard); optional 316L stainless steel
Fill Non-toxic oil filled
Temperature Deadband Typically 4% of range under laboratory conditions (70°F ambient circulating bath at rate
of 1/2°F per minute change)
Reference Scale Pressure: “High-Low” reference scale Temperature: reference dial
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180 Dexter Avenue, Watertown, MA 02472-4200
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