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Barksdale E1S, E1H Series Econ-O-Trol Switch

Econ-O-Trol Switch
E1S, E1H Series

• Superior resolution
• Long life
• Easy setpoint adjustment
• Ideal for pressure or vacuum applications
• NEMA 1, 3 & 4, IP65
• Stripped and housed versions available

Select a link under the "item" tab below to order.

Table 1Table 2Table 3Table 4Table 5Table 6
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Table 1Base Configuration
E1SStripped models
E1HHoused models
Table 2Limit Switch¹
-B10 amps @ 125/250/480 VAC; 2 amps @ 600 VAC; 0.05 amps @ 125 VDC; 0.03 amps @ 250 VDC
-H10 amps @ 125/250 VAC; 3 amps @ 480 VAC (standard)
-J10 amps @ 125/250 VAC; 3 amps @ 480 VAC; (comes with an elastomer boot)
-M10 amps @ 125/250 VAC; 3 amps @ 480 VAC; 0.5 amps @ 125 VDC; 0.25 amps @ 250 VDC
-R15 amps @ 125/250/480 VAC; 0.05 amps @ 125 VDC; 0.03 amps @ 250 VDC ADJUSTABLE DEADBAND
-GH1 amp @ 125 VAC; gold contact
Table 3Pressure Range
Adjustable Range
Decreasing - psi (bar) Increasing - psi (bar)
Min Min
VAC³.5” Hg 3.0” Hg .3 - 2.5” Hg Fixed Deadband
15.5 (.03) .6 (.04) .1 - 1.2 (.01 - .08) Fixed Deadband
903 (.2) 3.5 (.2) .5 - 8 (.03 - .5) Fixed Deadband
25010 (.7) 11 (.7) 1 - 20 (.07 - 1.3) Fixed Deadband
50025 (1.7) 29 (2) 4 - 28 (.3 - 1.9) Fixed Deadband
VAC³1” Hg Must select class R limit switch. Consult sales drawing for deadband charts
151 (.07) Must select class R limit switch. Consult sales drawing for deadband charts
906 (.4) Must select class R limit switch. Consult sales drawing for deadband charts
25015 (1) Must select class R limit switch. Consult sales drawing for deadband charts
50035 (2.3) Must select class R limit switch. Consult sales drawing for deadband charts
Table 4Pressure Connection
BlankE1S version: 1/8” int & 1/2” ext NPT; E1H version: 1/4” NPT female
-P41/4” NPT female (avialable on E1S only- not available on PLS version)
-P61/8” int & 1/2” ext NPT (E1H models only)
-F1Impregnated fitting (not UL or CSA approved)
-F2Nickel plated fitting
-BRBrass fitting: 1/8” int & 1/2” ext NPT (for E1S models or with -P6 option)
-BR⁴ ⁶Brass fitting: 1/4” NPT (for E1H models or with -P4 option)
-P6-PLS⁵ ⁶Polysulfone 40% glass filled; 1/8” - 1/2” NPT (E1H Only). Max adjustable pressure: 250 psi.
-PLS⁵Polysulfone 40% glass filled; 1/8” - 1/2” NPT (E1S Only). Max adjustable pressure: 250 psi.
Table 5O-Ring Material
-EEthylene propylene (EPR)
-TTeflon
-VViton® diaphragm
Table 6Options
-E1Plastic cover (E1S models only)
-FXNEMA 4X enclosure (E1H models only)
-RDManual reset (must select class G limit switch)
-Z1Cleaned for oxygen service
-SxxxFactory preset (consult factory)

• Medical equipment
• Pump & compressor monitoring
• Air proving in HVAC systems
• Irrigation systems
• Engine monitoring
• Machine tools
• General industrial applications  
• Metal working
• Food & beverage



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