D4N

Features

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 code1

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 code1

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

Durability2

Mechanical

15,000,000 operations min.3

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: 2x0.5 mm min
Slow-action: 2x2 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)

 


1. The NC contacts provide the approved direct opening mechanism.

2. The durability is acquired for an ambient temperature of 5 to 35°C and an ambient humidity of 40% to 70%.

3. 10,000,000 operations min. for fork lever actuator.

1. The NC contacts provide the approved direct opening mechanism.

2. The durability is acquired for an ambient temperature of 5 to 35°C and an ambient humidity of 40% to 70%.

3. 10,000,000 operations min. for fork lever actuator.

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