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D4B-[]N

Safety Limit Switch

D4B-[]N

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

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) GB14048.5 2003010305077612
2003010305095927

* 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) GB14048.5 2003010305077612
2003010305095927

* Adjustable roller lever, adjustable rod lever only.

Certified Standard Ratings

TÜV (EN60947-5-1), CCC (GB14048.5)

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.