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Unformatted text preview: force (AF)
The final stage of the actuating force which triggers the switchover of the contacts.
Changeover displacement (COD)
The displacement of the actuator between the switching and reset point.
Final position (FP)
The position taken up by the actuator when it reaches the final position.
Forward displacement (FD)
The travel of the stem or actuator from its free position to the switching point.
Free position (FP)
The position taken up by the actuator when it is not contacted by a drive element.
Overtravel displacement (OD)
The displacement beyond the switching point up to the final position; the minimum
permissible overtravel displacement is specified. Exceeding of this value reduces the
specified mechanical service life of the switch.
Positive opening displacement (POD)
The travel of the actuator from its free position to the position, where the
mechanical forced opening of the contacts is effected.
Reset force (RF)
The remaining actuator spring force, which effects the automatic reset of the s...
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This note was uploaded on 11/01/2012 for the course CHEMICAL 102 taught by Professor Jamesrodriguez during the Spring '12 term at Universidad Politécnica de Cartagena.
- Spring '12