D4N
Structure and Nomenclature
Structure
Direct Opening Mechanism
1NC/1NO Contact (Slow-action)
2NC Contact (Slow-action)
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Note:
M12 connector types are not available for
Switches with three contacts.
Head
The direction of the switch head can be varied to any of
the four directions. (Roller plunger models can be
mounted in either of two directions at a 90° angle.)
Conduit Opening
A wide variety of conduits is available.
Built-in Switch
The built-in switch has a direct opening mechanism
that forcibly separates the NC contact even when
there is contact deposit.
Safety-oriented Lever Setting
(Form-lock construction)
Grooves which engage the lever are cut in the lever and
rotary shaft to prevent the lever from slipping against the
rotary shaft.
There are resin-lever and metal-lever types.
Cover
The cover, with a hinge on its lower part, can
be opened by removing the screw of the
cover, which ensures ease of maintenance
and wiring.
Size Box 1-conduit
2-conduit
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
---
Contact spring
Return spring
Fixed contact (NC)
Fixed contact (NO)
Plunger
Movable contact
Conforms to EN60947-5-1 Direct Opening Operation
(Only the NC contact side has a direct opening
mechanism.)
When contact welding occurs, the contacts are
separated from each other by the plunger being
pushed in.
Contact spring
Fixed contact (NC)
Plunger
Movable contact
Return spring
Conforms to EN60947-5-1 Direct Opening Operation
(Both NC contacts have a direct opening
mechanism.)
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