Omron D4C-4520 Limit Switch
The Omron D4C-4520 Limit Switch offers Roller lever actuator, 5 m cable length, 0.1 A at 125 VAC, 0.1 A at 30 VDC rating. Manufactured by Omron under the Omron Limit Switch category, this model belongs to the D4C Series.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-4520 |
Omron D4C-4520 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Contact Form | SPDT |
| Electrical Ratings | 0.1 A at 125 VAC, 0.1 A at 30 VDC |
| Load | Microload |
| Ambient Temperature | Operating: -10 to 70 ℃ (with no icing) |
| Ambient Humidity | 35 to 95 % |
| Shock Resistance | Destruction: 1,000 m/s2 max. Malfunction: 500 m/s2 max. |
| Degree Of Protection | IP67 |
| Durability | Electrical: 200,000 operations min. (5 A at 125 VAC) Mechanical: 10 million operations min. |
| Cable Specifications | VCTF cable |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
| Cable Length | 5 m |
| Dielectric Strength | Between each terminal of the same polarities: 1,000 VAC 50/60 Hz 1 min Between live-metallic part and ground: 1,500 VAC 50/60 Hz 1 min Between each terminal and non-live-metallic part: 1,500 VAC 50/60 Hz 1 min |
| Actuator | Roller lever |
| Vibration Resistance | Malfunction: 10 to 55 Hz, 1.5 mm double amplitude |
| Rated Frequency | 50/60 Hz |
The Omron D4C-4520 is a compact enclosed switch featuring a roller lever actuator and a built-in SPDT contact configuration. Designed for microload switching, it supports 0.1 A at 125 VAC or 30 VDC, making it suitable for low-current detection tasks in industrial systems. The switch comes with a 5-meter oil-resistant VCTF cable for easy field wiring. Built to withstand harsh environments, it offers IP67 protection and operates reliably from –10°C to 70°C. Its robust construction and long mechanical life make it ideal for machinery, conveyors, and automated systems that demand accurate and repeated actuation.




