Small Safety Limit Switch [D4N]
Caution
Product Description
Standard safety limit switches. A full range of products provided globally.
[Features]
· Available with the following range of contact configurations: 1NC/1NO, 2NC, 2NC/1NO, 3NC (MBB specification for the throw action).
· Easily replaceable and labor-saving M12 connector types are also available.
· Highly reliable gold-plated contacts used as standard. Can be used with both general loads and micro loads.
Drawing
1 conduit type
*The dimensional tolerance for the parts not specified in the drawings of each model above is +/- 0.4 mm.
*For the M12 connector section, please refer to "1 Conduit Type Common to M12 Connector Type".
Product Specification
Structure
Performance
| Protective structure*1 | IP67 (EN60947-5-1) | |
|---|---|---|
| Durability*2 | Mechanical | More than 1 million times |
| Electrical | 500,000 operations or more (250 V AC 3 A resistive load) *3 300,000 operations or more (250 V AC 10 A resistive load) | |
| Allowable operation speed | 1 to 500 mm/s (Model D4N-1A20R) | |
| Allowable operation frequency | maximum 30 times/min | |
| Contact resistance | 25 mΩ or less | |
| Minimum applicable load*4 | 5 V DC 1 mA resistive load (N-level reference value) | |
| Rated insulation voltage (Ui) | 300V | |
| Rated frequency | 50/60 Hz | |
| Appliance Class | Class II (double insulation) | |
| Pollution degree (operating environment) | Pollution degree 3 (EN60947-5-1) | |
| Impulse withstand voltage (EN60947-5-1) | Between terminals of the same polarity | 2.5 kV |
| Between different pole terminals | 4 kV | |
| Between each terminal and non-current-carrying metal part | 6 kV | |
| Insulation resistance | 100 MΩ or more | |
| Contact gap | Minimum 2 x 2 mm | |
| Vibration | Malfunction | 10 to 55 Hz, Half amplitude 0.75 mm |
| Impact | Endurance | 1,000 m/s2 |
| Malfunction | 300 m/s2 | |
| Conditional short circuit current | 100 A (EN60947-5-1) | |
| Rated contact current (Ith) | 10 A (EN60947-5-1) | |
| Operating ambient temperature | -30 to +70°C (no freezing) | |
| Operating Ambient Humidity | 95% RH or less | |
| Weight | Approx. 92 g (for model D4N-1A20R) | |
*1. The values given above are initial values.
2. Once a load has been switched by the contact, do not use it with a load of lower capacity connected.
The surface of the contact may become rough, which could compromise contact reliability.
*1. This protective structure is based on test methods according to the standard (EN60947-5-1). Please confirm the sealing performance in advance under actual operating environment and usage conditions.
The switch box itself is protected against the ingress of dust, oil, and water; however, please use it in a location where chips, oil, water, or chemicals will not come into contact with the operation key insertion slot on the head section.
This may cause premature wear, damage, or malfunction.
*2. The durability conditions are based on an ambient temperature of 5 to 35°C and an ambient humidity of 40 to 70% RH.
*3. Do not apply 250 V AC 3 A to more than two circuits.
*4. This value may vary depending on switching frequency, environmental conditions, and reliability level. Please check with the actual load in advance.