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

(Page 5 of 5)
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Dimension A
Range Code Inches NPT

126-124

5.81

1/4

S126B-S164B

6.19

1/2

270-376

5.50

1/4

440-443, 449 451, 453, 454

4.28

1/4

448, 450, 452

5.03

1/4

520-525

8.25

1/2

530-535

8.12

1/2

551, 553-555

4.56

1/4

550, 552

5.03

1/4

570-572

4.56

1/4

610-614

6.44

1/4

Differential Pressure

147-157

6.13

1/4

S147B-S157B

6.13

1/2

455-559

7.00

1/4

540-543

7.97

1/8

544-547

8.03

1/8

Temperature

120, 121

10.88

Immersion Stem

1BS-8BS

7.00

Bulb & Capillary
DIMENSIONS (INCHES)
Set Point Adjustment via Reference Dial
Types H400, H402, H403, H400K, H402K, B400, B402, B403, E400,
      E402, E403
Internal Set Point Adjustment
Types J400, J402, J403, J400K, J402K, C400, C402, C403, F400,
      F402, F403
400 Series, Pressure, Vacuum, Diff. Pressure & Temp. Switches Diag 1
Sensors-Pressure
Diagram 3
Diaagram 4
Diagram 5
Diagram 6
Sensors-Temp Diag 7
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For assistance call 978-568-3400
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