The contact gap is either 0.25, 0.5, 1.0, or 1.8 mm. The contact gap 
is a design Basic Switches PDF Basic Switches datasheet goal. Check the contact gap of 
Basic Switches Basic Switches PDF the switch to be used Basic Switches datasheet if a 
minimum contact gap is required. The standard contact gap Basic Switches PDF is 0.5 
mm. Even for the same switch configuration, the smaller the contact 
gap of a switch mechanism is, the less the movement differential (MD) 
is and the more sensitivity and longer durability the switch has. Such 
a switch cannot ensure, however, excellent switching performance, 
vibration resistance, or shock resistance.
A switch becomes less sensitive when the movement differential (MD) 
increases along with the contact gap due to the wear and tear of the 
contacts as a result of current switching operations. If a switch with a 
contact gap of 0.25 mm is used for its high sensitivity, it will be necessary 
to minimize the switching current in order to prevent the wear and tear of 
the contacts as a result of current switching operations.
A switch with a wide contact gap excels in vibration resistance, shock 
resistance, and switching  Basic Switches datasheet perfformance.
OMRON Basic Switches datasheet Basic Switches datasheet PDF Catalog.