The normally closed contact is frequently used for electrical interlocking

the 755-1 is the manufacturer-specified successor and provides identical electrical and mounting specifications

Nuisance trips are typically caused by restricted airflow

Arc Suppression: Silver cadmium oxide contacts are engineered to reduce wear and handle resistive or inductive loads efficiently

ensuring exact fitment and electrical specifications are met without field modifications

Functional Devices RIBXKF Sensor The normally closed contact isFor high reliability motor status monitoring and load detection, the Functional Devices RIBXKF is a trade standard solid core current switch engineered for seamless integration into building automation systems. This fixed threshold current sensor triggers at 0. 25 Amps, providing a reliable normally open (N O) solid state contact for HVAC proof of flow and belt loss detection. Designed to handle a sensing range from . 25 150Amp current, the RIBXKF