The type 604 pressure switch is usedas a ∆P flow switch in ventilation ducts for the control of filters and fans, and in primary and secondary control systems for the control of air dampers.

The 604 pressure monitoring switches are also ideally suited to protect heating coils from overheating and for monitoring industrial air cooling circuits. Medium: air and non-corrosive gases.

Setting ranges

  0.2 ... +   3 mbar        (20 - 300 Pa)
  0.5 ... +   5 mbar        (50 - 500 Pa)
  1    ... + 10 mbar    (100 - 1000 Pa)
  5    ... + 20 mbar    (500 -2000 Pa)
10    ... + 50 mbar  (1000 - 5000 Pa)