Clark Solutions
400 Series, Pressure, Vacuum, Diff. Pressure & Temp. Switches
1, 2 & 3 Switch output, Adjustable Ranges 30” Vac to 6000 PSI, -180 to 650°F

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100 Series, Pressure, Vacuum, Diff. Pressure & Temp. Switches
DESCRIPTION
The 400 Series is a versatile family of pressure, differential pressure and temperature switches for applications which require single or multiple switching capabilities. Dual or triple switch versions provide multi-output in applications such as alarm and shutdown, pre-alarm and alarm, high/low limit or level staging functions. They are available in both hex screw adjustment and dial set point adjustment versions, and have a wide variety of available options.  

Triple switch J403’s may be used for liquid level control. In this application, three pressure settings correspond to "pumping out" elevations in a sump pump. The 400 Series continues to be widely used throughout the process industries, from industrial gas production, energy generation, and pulp and paper, to applications involving pumps, turbines, compressors and heavy equipment, where threshold protection and control of functions is required. 
SPECIFICATIONS
GENERAL
Storage Temperature: -65° to 160°F (-54 to 71°C)
Ambient Temperature: -40° to 160°F (-40 to 71°C); Set
      point typically shifts less than 1% of range for a 50°F
      (28°C) ambient temperature change 
Set Point Repeatability: Temperature models:± 2% of
      adjustable range 
Pressure: models 126-376, 520-535, 540-547, 570-572:
      ± 2 % of adjustable range; models 440-457, 550-
      559: ± 1% of adjustable range; models 610-614:
      ± 3% of adjustable range 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
Enclosure Class: Designed to meet NEMA 4X
      requirements with option M900 (watertight electrical
      connection)
Switch Output: One, two or three SPDT; switches may be
      separated up to 100% of range; except ranges 521-
      524, 531-534: 50% and ranges 520, 525, 530, 535,
      570-572: 30%
Electrical Rating: 15 A 125/250/480 VAC resistive 
Weight: 3-7.5 lbs, varies with model 
Electrical Connection: Three 7/8” diameter knockouts
Pressure Connection: All models 1/4” NPTF except
      ranges S126BS164B, 520-535: 1/2” NPTF; ranges
      540-547: 1/8"NPTF
Temperature Assembly: ‘E’ types use the same
      assemblies as ‘F’ types; however, range spans
      are limited due to use of reference dials
Bulb and capillary: 6 feet 304 stainless steel
Immersion stem: nickel-plated brass; optional 316L
      stainless steel
Fill: Models 1BS are solvent filled, models 2-8 are
      non-toxic oil filled
Temperature Deadband: Type F typically 1% and type
      E typically 2% of range under laboratory
      conditions (70°F ambient circulating bath at rate
      of 1/2°F per minute change)
Approvals:
    UL listed
        Temperature: UL 873, file #E10667
        Pressure: UL 508, file #E42272 (available types
        400 and 402)
    UL Recognized
        Temperature: UL 873, file #E10667
        Pressure: UL 508,file #E42272 (available type
        403)
    CSA certified
        Temperature: CSA C22.2, no.24 file #LR7814
        Pressure: CSA C22.2,no.14 file #LR39690
    FM Approval 3510, 3530, 3531 (not all models
        approved, see below for a detailed listing of
        approved models)
    CE Compliance with Low Voltage Directive (LVD)
    CE Compliance to Pressure Equipment Directive
        (PED 97/23/EC))
PRESSURE MODEL H400, H402, H403 DIAL ADJUSTMENT VERSIONS
Range/Material Code Adjustable Set Point Range High end of range on rise, low end on fall Deadband (x2 for 2 & 3 switch types) **Proof Pressure Scale Division
psi Unless noted bar psi Unless noted bar psi bar psi
Welded 316L stainless steel bellows with 1/2" NPT (female) pressure connection
S126B 30" Hg Vac to 0 -1 to 0 0.2 to 0.9" Hg 7 to 30.5 mbar 30" Hg Vac -1 0.5" Hg
S134B 30" Hg Vac to 20 -1 to 1.4 0.2 to 1.2" Hg 7 to 40.6 mbar 25 1.7 1" Hg & 0.5 psi
S137B 0 to 80"wc 0 to 200 mbar 2 to 6"wc 5 to 15 mbar 5 0.3 2"wc
S144B 0 to 20 0 to 1.4 0.1 to 0.5 6.9 to 34.5 mbar 25 1.7 0.5
S146B 0 to 30 0 to 2.1 0.1 to 0.6 6.9 to 41.4 mbar 40 2.78 0.5
S156B 0 to 100 0 to 6.9 0.2 to 0.8 13.8 to 55.2 mbar 200 13.8 2
S164B 0 to 200 0 to 13.8 0.3 to 2 20.7 to 138 mbar 200 13.8 5
Welded 316L stainless steel bellows with 1/4" NPT (female) pressure connection
358 0 to 200 0 to 13.8 1.5 to 8 0.1 to 19.9 250 17.2 5
361 0 to 300 0 to 20.7 2 to 9 0.1 to 22.4 350 24.1 10
376 0 to 500 0 to 34.5 3 to 12 0.2 to 29.9 575 39.6 10
Brass bellows with 1/4" NPT (female) nickel plated brass pressure connection; Models 126 & 134 have zinc-plated steel spring in media
126 30" Hg to 0 psi -1 to 0 0.2 to 0.9" Hg 7 to 35 mbar 30" Hg Vac -1 0.5" Hg
134 30" Hg to 20 psi -1 to 1.4 0.2 to 1.2" Hg 7 to 40.6 mbar 25 1.7 1" Hg & 0.5 psi
137 0 to 80"wc 0 to 200 mbar 2 to 6"wc 5 to 15 mbar 5 0.3 2" wc
144 0 to 20 0 to 1.4 0.1 to 0.5 6.9 to 34.5 mbar 25 1.8 0.5
146 0 to 30 0 to 2.1 0.1 to 0.6 6.9 to 41.4 mbar 40 2.8 0.5
156 0 to 100 0 to 6.9 0.2 to 0.8 13.8 to 55.2 mbar 125 8.6 2
164 0 to 200 0 to 13.8 0.3 to 2 20.7 to 138 mbar 200 13.8 5
Phosphor Bronze bellows with 1/4" NPT (female) nickel plated brass pressure connection
270 0 to 200 0 to 13.8 1.5 to 8 0.1 to 19.9 250 17.2 5
274 0 to 300 0 to 20.7 2 to 10 0.1 to 24.9 350 24.1 10
**Proof Pressure: The maximum pressure to which a pressure sensor may be occasionally subjected, which causes no permanent damage. The unit may require calibration (e.g., start-up, testing).
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For assistance call 978-568-3400
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