Qualitrol Sudden Pressure Relay

Qualitrol 909-300-01

Known as a Sudden Pressure Relay or a Seal-In Relay, this relay gives a continuous output when activated by a momentary contact, such as in a pressure sensor.

 Part numbers seen are 909-200-1, 909-210-01, 909-300-02 & others.

 Since new relays seem to have long delivery times, we can push these repairs to the front of the line if requested.