Description
D4N
Limit switch with plastic housing
The D4N series of limit switches in plastic housing is the ideal switch for all standard mechanical position detection applications both for safety and non-safety applications.
- Direct opening mechanism and approval by notified body
- Rugged plastic housing with double insulation
- Wide range of actuators
- M12 connectors or terminal block with M20 conduit
Specifications & ordering info
Ordering information
|
Actuator type
|
Connection method
|
Order code
|
|
1NC/1NO (snap-action)
|
1NC/1NO (slow-action)
|
2NC (slow-action)
|
2NC/1NO (slow-action)
|
|
Order code
|
Order code
|
Order code
|
Order code
|

|
Roller lever
(resin lever, resin roller)
|
M20
|
D4N-4120
|
D4N-4A20
|
D4N-4B20
|
D4N-4C20
|
|
M12 connector
|
D4N-9120
|
D4N-9A20
|
D4N-9B20
|
–
|

|
Plunger
|
M20
|
D4N-4131
|
D4N-4A31
|
D4N-4B31
|
–
|
|
M12 connector
|
D4N-9131
|
D4N-9A31
|
D4N-9B31
|
–
|

|
Roller plunger
|
M20
|
D4N-4132
|
D4N-4A32
|
D4N-4B32
|
D4N-4C32
|
|
M12 connector
|
D4N-9132
|
D4N-9A32
|
D4N-9B32
|
–
|

|
One-way roller arm lever (horizontal)
|
M20
|
D4N-4162
|
D4N-4A62
|
D4N-4B62
|
D4N-4C62
|
|
M12 connector
|
D4N-9162
|
D4N-9A62
|
D4N-9B62
|
–
|

|
One-way roller arm lever (vertical)
|
M20
|
D4N-4172
|
D4N-4A72
|
D4N-4B72
|
–
|

|
Adjustable roller lever, form lock
(metal lever, resin roller)
|
M20
|
D4N-412G
|
D4N-4A2G
|
D4N-4B2G
|
–
|
|
M12 connector
|
D4N-912G
|
D4N-9A2G
|
D4N-9B2G
|
–
|

|
Adjustable roller lever, form lock
(metal lever, rubber roller)
|
M20
|
D4N-412H
|
D4N-4A2H
|
D4N-4B2H
|
–
|
|
M12 connector
|
D4N-912H
|
D4N-9A2H
|
D4N-9B2H
|
–
|
Switches with MBB contacts
MBB (Make Before Break) contacts have an overlapping structure, so that before the normally closed (NC) contact opens the normally open (NO) contact closes.
|
Actuator type
|
Connection method
|
Order code
|
|
1NC/1NO (slow-action)
|
2NC/1NO (slow-action)
|

|
Roller lever
(resin lever, resin roller)
|
M20
|
D4N-4E20
|
D4N-4F20
|
|
M12 connector
|
D4N-9E20
|
–
|

|
Roller plunger
|
M20
|
D4N-4E32
|
D4N-4F32
|
|
M12 connector
|
D4N-9E32
|
–
|

|
One-way roller arm lever (horizontal)
|
M20
|
D4N-4E62
|
D4N-4F62
|
|
M12 connector
|
D4N-9E62
|
–
|
Specifications
|
Durability
|
Mechanical
|
15,000,000 operations min.
|
|
Electrical
|
500,000 operations min. for a resistive load of 3 A at 250 VAC
300,000 operations min. for a resistive load of 10 A at 250 VAC
|
|
Operating speed
|
Roller lever
|
1 mm/s to 0.5 m/s
|
|
Operating frequency
|
30 operations/minute max.
|
|
Minimum applicable load
|
Resistive load of 1 mA at 5 VDC (N-level reference value)
|
|
Protection against electric shock
|
Class II (double insulation)
|
|
Pollution degree (operating environment)
|
3 (EN60947-5-1)
|
|
Contact gap
|
Snap-action: 2×0.5 mm min
Slow-action: 2×2 mm min
|
|
Conditional short-circuit current
|
100 A (EN60947-5-1)
|
|
Rated open thermal current (Ith)
|
10 A (EN60947-5-1)
|
|
Ambient temperature
|
Operating
|
-30 to 70°C with no icing
|
|
Degree of protection
|
IP67 (EN60947-5-1)
|
1NO/1NC Contact (Snap-action)
If metal deposition between mating contacts occurs on the NC contact side, they can be pulled apart by the shearing force and tensile force generated when part B of the safety cam or plunger engages part A of the movable contact blade. When the safety cam or plunger is moved in the direction of the arrow, the Limit Switch releases.
1NC/1NO Contact (Slow-action)
2NC Contact (Slow-action)