Abstract: A pressure switch includes an actuation unit disposed within a body of the pressure switch and biased in a first direction by a spring arrangement and accessible at a fitting end of the pressure switch to be movable in a second direction against the bias of the spring by fluid at the fitting end. The actuation unit includes a limiter trapped in a pocket to limit the range of travel of the actuation unit, thereby safeguarding the electrical switch element from sustaining damage due to excessive travel. The pocket may be formed by the cooperation of two separate pieces. The spring arrangement may be biased by another piece disposed within a body of the pressure switch.

Abstract: A pressure switch includes an actuation unit disposed within a body of the pressure switch and biased in a first direction by a spring arrangement and accessible at a fitting end of the pressure switch to be movable in a second direction against the bias of the spring by fluid at the fitting end. The actuation unit includes a limiter trapped in a pocket to limit the range of travel of the actuation unit, thereby safeguarding the electrical switch element from sustaining damage due to excessive travel. The pocket may be formed by the cooperation of two separate pieces. The spring arrangement may be biased by another piece disposed within a body of the pressure switch.