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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.
Delta-Pro™ 24 Series
Pressure and Differential Pressure Switch
The cost-effective 24 Series Delta-Pro™ pressure, vacuum, and differential pressure switches offer a unique blend of compact size, excellent performance, and environmental protection. Available with brass or polysulfone pressure connections the
Delta-Pro is ideal for applications involving hot or cool air, water, gas or oil.
Corrosion resistant molded NEMA 4 enclosure
Brass, Teflon® or polysulfone wetted parts
Terminal block wiring
Our lowest cost differential pressure switch
◦ 30 "Hg Vac to 90 psi
1 bar Vac to 6,2 bar
◦1 to 45 psid
70 mbar d to 3 bar d Approvals: UL, CSA, CE
The precision snap-acting switch and sensitive diaphragms combine to provide a narrow deadband and repeatability of
approximately ±1% of full scale range. A convenient, externally accessible adjustment screw is multi-turn to provide easy set point adjustability. The force-balanced design gives the Delta-Pro excellent vibration resistance.
UL listed and cUL certified. CE compliant to low voltage directive
and pressure equipment directive
Vacuum, Pressure or Differential pressure measurement
Brass & Polysulfone (FDA compliant) Pressure Connections
5A @ 125/250 VAC SPDT snap-acting switch
External stainless steel multi-turn adjusting screw
OEM capabilities include external adjustment knob with or without
Complies with Enclosure Type 4 with watertight conduit fitting
Terminal block wiring
Optional red status light
Pressure: 30" Hg Vac to 90 psi
(-1 to 6,2 bar)
Differential Pressure: 1 to 45 psid
(68,9 mbar to 3,1 bar)
Storage Temperature -20° to 180°F (-29° to 82°C)
Ambient Temperature 30° to 160°F (-1° to 71°C). Set point typically shifts less than ±0.6% of range for a
Limits 50°F (28°C) ambient temperature change; consult factory for special ratings
Max Media Temperature 200°F (93°C) at 100 psi working pressure
Shock Set point repeats after 15G, 10 millisecond duration
Vibration Set point repeats after 2.5G, 5-500 Hz
Enclosure Classification Complies with enclosure type 4 requirements with optional water tight conduit connector.
Reinforced polyester body, stainless steel cover with gasket.
Set point Typically ± 1% of full scale range.
Switch output One SPDT precision snap-acting micro-switch with mechanical contact life of 10 million
cycles. Actual life depends on electrical load and cycle frequency
Electrical rating Rated to 5 A resistive and 5 A inductive (75% PF) at 125 VAC and 250 VAC, 1/4 HP; 5 A
resistive and 3 A inductive at 30 VDC and 0.5 A resistive and 0.25 inductive at 125 VDC.
Gold flash over silver contacts for minimum loads of 5 mA at 6 VDC, 2 mA at 12 VDC and
1 mA at 24 VDC
Weight 6.5 oz.
Electrical Connection 7/8" hole for optional 1/2" NPT conduit connector. Terminal block with screw terminals.
Max wire size 16 AWG
Pressure Connection Models 013-014, 019-022: 1/4" NPT (female) brass; models 011-012, 015-018: 1/4" NPS
(female) FDA compliant* Udel® polysulfone, non-tapered to minimize connection stress
with 1/4" NPT (male) fittings - max torque is 2-ft.lbs.
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)
Mounting & Installation Surface mount with two screws through clearance holes, or mount by pressure
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180 Dexter Avenue, Watertown, MA 02472-4200
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