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D4A-[]N
![D4A-[]N](/product/thumbnail/family/l_328.jpg)
The Limit Switch with Better Seal, Shock Resistance, and Strength
Data Sheet (1061KB)
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D4A-[]N Pick up
Ratings
| Type | Rated voltage | Non-inductive load (A) | Inductive load (A) | ||||||
| Resistive load | Lamp load | Inductive load | Motor load | ||||||
| NC | NO | NC | NO | NC | NO | NC | NO | ||
| SPDT double-break (with/without indicator) | 125 VAC * 250 VAC * 480 VAC 600 VAC | 10 10 10 3 | 10 10 10 1 | 3 2 1.5 1 | 1.5 1 0.8 0.5 | 10 10 3 1.5 | 5 3 1.5 1 | 2.5 1.5 0.8 0.5 | |
| 8 VDC 14 VDC 30 VDC 125 VDC * 250 VDC * | 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 | ||||
| DPDT double-break (without indicator) | 125 VAC 250 VAC 480 VAC 600 VAC | 5 3 1.5 1 | 2 1 0.5 0.4 | 4 2 1 0.7 | 3 1.5 0.8 0.5 | ||||
| 14 VDC 30 VDC 125 VDC 250 VAC | 5 3 0.4 0.2 | 2 1 0.1 0.05 | 4 2 0.4 0.2 | 3 1.5 0.1 0.05 | |||||
| DPDT double-break (with in-dicator) | 125 VAC 250 VAC | 5 3 | 2 1 | 4 2 | 3 1.5 | ||||
| 12 VDC 24 VDC 48 VDC | 5 3 1 | --- | --- | --- | --- | ||||
* For those with indicators, refer to the following rated voltages.
| Item | Type | SPDT, Double-break | DPDT, Double-break | ||
| Without indicator | With indi-cator | Without indicator | With in-dicator | ||
| Inrush current | Normally closed | 30 A max. | |||
| Normally open | 20 A max. | ||||
Note:
1. The above current ratings are for steady-state current.
2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).
3. Lamp loads have an inrush current of 10 times the steady-state current.
4. Motor loads have an inrush current of 6 times the steady-state current.
Ratings for Models with Indicators and Indicator Replacement
Ratings for Indicators
| Classi-fication | Indicator | Model | Rated voltage | Leakage current | Internal resistance |
| SPDT double-break | Neon lamp | D4A-0300N | 125 VAC, 250 VAC | Approx. 0.47 mA | 150 k Ω |
| LED | D4A-0E00N | 24 VDC | Approx. 1.3 mA | 15 k Ω | |
| DPDT double-break | Neon lamp | D4A-0L00N | 125 VAC, 250 VAC | Approx. 0.28 mA | 240 k Ω |
| LED | D4A-0P00N | 48 VDC | Approx. 1.4 mA | --- |
Characteristics
| Degree of protection (reference standards) | IP67 and NEMA 1, 2, 3, 4X, 5, 6P, 12, and 13 | |
| Durability *2 | Mechanical: *1 | SPDT, double-break, roller lever: 50,000,000 operations min. DPDT, double-break, roller lever: 30,000,000 operations min. |
| Electrical: | SPDT, double-break: for 125 VAC, 10 A resistive load: 1,000,000 opera-tions min. DPDT, double-break: for 125 VAC, 5 A resistive load: 750,000 operations min. | |
| Operating speed | 1 mm/s to 2 m/s (in case of D4A-3101N roller lever model) | |
| Operating frequency | Mechanical: | 300 operations/minute |
| Electrical: | 30 operations/minute | |
| Rated frequency | 50/60 Hz | |
| Insulation resistance | 100 M Ω min. (at 500 VDC) between terminals of the same polarity, be-tween current-carrying metal parts and ground, and between each terminal and non-current-carrying metal part | |
| Contact resistance | 25 m Ω max. (initial value) | |
| Temperature rise | 50 ° C max. | |
| Dielectric strength | Between terminals of same polarity | 1,000 VAC, 50/60 Hz for 1 min. |
| Between current-carrying metal parts and ground | 2,200 VAC, 50/60 Hz for 1 min. *3 | |
| Between each terminal and non-current-carrying metal part | 2,200 VAC, 50/60 Hz for 1 min. *3 | |
| Pollution degree (operating environment) | 3 | |
| Protection against electric shock | Class I (with grounding terminal) | |
| Vibration r esistance | Malfunction: *4 | 10 to 55 Hz, 1.5-mm double amplitude |
| Shock resistance | Destruction: | 1,000 m/s2 min. |
| Malfunction: *4 | SPDT, double-break, roller lever: 600 m/s2 min. DPDT, double-break, roller lever: 300 m/s2 min. | |
| Ambient operating humidity | 35% to 95%RH (with no icing) | |
| Weight | Approx. 290 g (in case of D4A-3101N ) | |
Note: The above figures are initial values.
*1. Excluding maintained models.
*2. The values are calculated at an operating temperature of +5°C to +35°C, and an operating humidity of 40% to 70%RH. Contact your OMRON sales representative for more detailed information on other operating environments.
*3. 1,500 VAC is applied to the indicator lamp type.
*4. Not including Flexible rods (cat whisker, plastic rod, coil spring, and spring wire types).
| Type | Roller lever * 1 | Plunger, flexible rod * 2 | With indicator |
| Ambient tempera-ture | -40°C to +100°C | -20°C to +100°C | -10 ° C to +80 ° C |
*1. Excluding low-torque and high- sensitivity models.
*2. Including roller lever low-torque and high-sensitivity operating models.
Caution: In the interenst of product improvement, specifications are subject to change without notice.
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