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D4B-[]N
![D4B-[]N](/product/thumbnail/family/l_392.jpg)
Snap-action contact with certified direct opening operation certification Maintenance, seal, and resistance to shock increased and direct opening mechanism added. Three-conduit switches and 2NC switches are also available
Data Sheet (1341KB)
Quick links OMRON IA Safety Limit Switches in your country.
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Please contact our European headquarters.
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. | |
| 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) 0.5 × 2 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) *3 | |
| 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℃ and ambient humidity of 40% to 70%. For further conditions, consult your OMRON sales representative.
*3. –20 to 80℃ for the flexible-rod type.
Caution: In the interenst of product improvement, specifications are subject to change without notice.
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