Product Category

Safety Components

Safety Limit Switches

D4N

D4F

D4B-[]N

D4N-[]R

Safety Limit Switch

D4B-[]N

Robust safety limit switch with metal housing Slow-action and snap-action contact with certified direct opening operation certification.

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Specification

Standards and EC Directives

Conforms to the following EC Directives:

• Machinery Directive
 • Low Voltage Directive
 • EN50041
 • EN60204-1
 • EN ISO 14119 

Certified Standards

Snap-action Models

Certification body

Standard

File No.

TÜV Rheinland

EN60947-5-1 (certified direct opening mechanism)
 GS-ET-15

Consult your OMRON
 representative for details.

EN60947-5-1 (uncertified direct opening mechanism)

J50005477 *

UL

UL508

E76675

CSA

C22.2 No. 14

LR45746

CQC (CCC)

GB/T14048.5

Contact your OMRON
 representative for details.

* Adjustable roller lever, adjustable rod lever only. 

Slow-action Mode

Certification body

Standard

File No.

TÜV Rheinland

EN60947-5-1 (certified direct opening mechanism)
 GS-ET-15

Consult your OMRON
 representative for details.

EN60947-5-1 (uncertified direct opening mechanism)

J50005477 *

UL

UL508

E76675

CSA

C22.2 No. 14

LR45746

CQC (CCC)

GB/T14048.5

Contact your OMRON
 representative for details.

* Adjustable roller lever, adjustable rod lever only. 

Certified Standard Ratings

TÜV (EN60947-5-1), CCC (GB/T14048.5)

Utilization category

AC-15

Rated operating current (Ie)

2 A

Rated operating voltage (Ue)

400 V

Note: As protection against short-circuiting, use either a gI-type or gG-type 10 A fuse that conforms to IEC60269. 

UL/CSA: (UL508, CSA C22.2 No. 14)

A600

Rated voltage

Carry current

Current (A)

Volt-amperes (VA)

Make

Break

Make

Break

120 VAC
 240 VAC
 480 VAC
 600 VAC

10 A

60
 30
 15
 12

6
 3
 1.5
 1.2

7,200

720

Ratings

Rated voltage (V)

Non-inductive load (A)

Inductive load (A)

Resistive load

Lamp load

Inductive load

Motor load

NC

NO

NC

NO

NC

NO

NC

NO

125 VAC
 250
 400

10
 10
 10

3
 2
 1.5

1.5
 1
 0.8

10
 10
 3

5
 3
 1.5

2.5
 1.5
 0.8

8 VDC
 14
 30
 125
 250

10
 10
 6
 0.8
 0.4

6
 6
 4
 0.2
 0.1

3
 3
 3
 0.2
 0.1

10
 10
 6
 0.8
 0.4

6
 6
 4
 0.2
 0.1









Note: 1. The above values are continuous currents.
            2. Inductive loads have a power factor of 0.4 or higher (AC) or a time constant of 7 ms or lower (DC).
            3. Lamp loads have a inrush current of 10 times the normal current.
            4. Motor loads have a inrush current of 6 times the normal current. 

Inrush current

30 A max.

Characteristics

Degree of protection *1

IP67 (EN60947-5-1)

Durability *2

Mechanical

30,000,000 operations min. (snap-action)
 10,000,000 operations min. (slow-action)

Electrical

500,000 operations min. (10 A resistive load at 250 VAC)

Operating speed

1 mm/s to 0.5 m/s

Operating frequency

Mechanical

120 operations/minute

Electrical

30 operations/minute

Contact resistance

25 mΩ max.

Minimum applicable load *3

180 mA resistive load at 5 VAC
 (N-level reference value)

Rated insulation voltage (Ui)

600 V (EN60947-5-1)

Rated frequency

50/60 Hz

Protection against electric shock

Class I (with ground terminal)

Pollution degree (operating environment)

3 (EN60947-5-1)

Impulse withstand voltage
 (EN60947-5-1)

Between terminals
 of same polarity

2.5 kV (snap-action)/4 kV (slow-action)

Between terminals
 of different polarity

4 kV (slow-action)

Between each
 terminal and ground

4 kV

Insulation resistance

100 MΩ min. (at 500 VDC) between terminals of the same polarity
 and between each terminal and non-current-carrying part

Contact gap

2 × 2 mm min. (slow-action)
 2 × 0.5 mm min. (snap-action)

Vibration resistance

Malfunction

10 to 55 Hz, 0.75 mm single amplitude

Shock resistance

Destruction

1,000 m/s2 min.

Malfunction

300 m/s2 min.

Conditional short-circuit current

100 A (EN60947-5-1)

Conventional enclosed thermal current (Ithe)

20 A (EN60947-5-1)

Ambient operating temperature

-40 to 80°C (with no icing)

Ambient operating humidity

95% max.

Weight

Approx. 250 g

Note: 1. The above values are initial values.
            2. The above values may vary depending on the model. Consult your OMRON sales representative for details.
 1. The degree of protection is tested using the method specified by the standard (EN60947-5-1). Confirm that sealing properties are sufficient for the operating conditions and environment beforehand.
 2. The durability is for an ambient temperature of 5 to 35°C and ambient humidity of 40% to 70%. For further conditions, consult your OMRON sales representative.
 3. The above values may vary depending on switching frequency, environmental condition, and relativity level, consult your OMRON sales representative.