Small Safety Limit Switch [D4F]
Caution
Product Description
[Features]
· Limit switch with direct opening mechanism (4 contacts).
· Safety limit switch with high sensitivity.
· Built-in switch is available with 2 contacts or 4 contacts.
Dimensional Drawing of OMRON Limit Switch
Note: In the above dimensional diagrams for Limit Switch model, the dimensional tolerance for all unspecified parts is ±0.4 mm.
Specification Table of OMRON Limit Switch
Limit Switch Performance
| Protective structure*1 | IP67 (EN60947-5-1) | |
|---|---|---|
| Durability*2 | Mechanical | Over 10 million times |
| Limit Switch Electrical | 1 million times or more (4mA/24V DC x 4 circuits resistive load) 150,000 times or more (1A/125V AC x 2 circuits, 4mA/24V DC x 2 circuits resistive load)*3 | |
| Allowable Operating Speed | 1mm to 0.5m/s | |
| Allowable operating frequency | Mechanical | 120 times/min |
| Limit Switch Electrical | 30 times/min | |
| Contact resistance*5 | 300mΩ or less (with 1m cable), 500mΩ or less (with 3m cable), 700mΩ or less (with 5m cable) | |
| Minimum applicable load*4 | DC24V 4mA resistive load 4 circuits (N level reference value) | |
| Rated insulation voltage (Ui) | 250V | |
| Rated Frequency | 50/60Hz | |
| Electric shock protection class | Class I (with earth wire) | |
| Pollution level (usage environment) | Pollution degree 3 (EN60947-5-1) | |
| Impulse withstand voltage (EN60947-5-1) | Between same-polarity terminals | 2.5kV |
| Between different terminals | 4kV | |
| Between each terminal and earth | 4kV | |
| Insulation resistance | Between same-polarity and different-polarity terminals, between live metal parts and earth, and between each terminal and non-live metal parts: 100MΩ or more (DC500V megger) | |
| Contact Gap | Minimum 2 x 2 mm | |
| vibration | malfunction | 10 to 55Hz, single amplitude 0.75mm |
| Limit Switch impact | Durability | 1,000m/s2 ormore |
| malfunction | 300m/s2 ormore | |
| Conditional Short Circuit Current | 100A (EN60947-5-1) | |
| Rated open circuit thermal current <Ith> | 2.5A (EN60947-5-1) | |
| Ambient temperature | -30 to +70℃ (but do not freeze) | |
| Ambient humidity | 95% RH or less | |
| cable | UL Style 2464 AWG22 Finished outer diameter 8.3mm | |
| mass | Approx. 190g (D4F-102-1R with 1m cable) Approx. 220g (D4F-120-1R with 1m cable) | |
Note 1. The above values are initial values.
2. A load with a smaller capacity cannot be connected to a contact that has already Limit Switch a load. Doing so may cause the contact surface to become rough and reduce contact reliability.
*1. This protection structure is based on a test method in accordance with the standard (EN60947-5-1), and sealing performance under the actual usage environment and conditions should be confirmed in advance.
*2. Durability conditions are for an ambient temperature of 5 to 35°C and an ambient humidity of 40 to 70% RH.
*3. Do not apply 1A/125V AC to two or more circuits.
*4. This value may vary depending on Limit Switch frequency, environmental conditions, reliability level, etc. Please check with an actual load in advance.
*5. Measurement conditions: DC5 to 8V, 0.1A voltage drop method.