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Technical Terminology & Cautions for Use (Detection Switches)
TECHNICAL TERMINOLOGY
■ Definition of operating characteristic
The main terminological illustrations and
meanings which are used with snapaction
switches are as follows.
OF
PT
TF
FP
OT
OP
TTP
Center of mounting holes
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
Classification
Terminology
Operating
Force
RF
Release
Force
Force
TT
MD
Totaltravel
RP
Force
Pretravel
Overtravel
Movement
Movement
Differential
Totaltravel
Free Position
Operating
Position
Position
Release
Position
Total travel
Position
Varying
Symbol
Unit
display
method
OF
N
Max.
RF
N
Min.
TF
N
mm,
PT
Max.
degree
mm,
OT
Min.
degree
mm,
MD
Max.
degree
mm,
TT
degree
mm,
FP
degree
mm,
OP
±
degree
mm,
RP
degree
mm,
TTP
degree
ー 12 ー
Panasonic Industry Co., Ltd. 2022
Starting current
The force required to cause contact
snap-action. It is expressed terms of force
applied to the the actuator.
The force to be applied to the the actuator
at the moment contact snaps back from
operated position to total travel position.
Force applied to an actuator required to
move from an operating position to a total
travel position
Distance or agree of the actuator movement
from free position to operating position.
The distance or degree which the actuator
is permitted to travel after actuation without
any damage to the switching mechanism.
The distance or degree from operating
position to release position of the actuator.
The migration length or the move angle
from the free position to total travel position
of actuator
Position of the actuator when no force is
applied to.
The position of the actuator when the
traveling contacts snaps with the fixed
contact.
The position of the actuator when the
traveling contact snaps back from operating
position to its original position.
The stopping position of the actuator after
total travel.
AECTB36E 202204
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