Omron D4C-4520 Limit Switch
Omron D4C-4520 is a microload limit switch with a roller lever actuator and SPDT switching for position and travel detection. It is rated at 0.1 A at 125 VAC and 0.1 A at 30 VDC and includes a 5 m VCTF cable for longer prewired connection. IP67 protection and operation from -10 to 70°C support enclosed machine installations. The D4C-4520 belongs to the D4C Series within the microload roller lever switch range from Omron limit switch products for low-current position and end-of-travel sensing.
| 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 Limit Switch uses a roller lever actuator with SPDT switching for microload position and travel detection. Electrical ratings are 0.1 A at 125 VAC and 0.1 A at 30 VDC. A 5 m VCTF cable provides extended prewired connection. IP67 protection covers the switch body, and operation is specified from -10 to 70°C with 35 to 95% relative humidity. The lever actuator suits moving targets that sweep across the sensing point rather than pressing directly into a plunger.
Mechanical durability is specified at 10 million operations minimum, while the source lists electrical durability at 200,000 operations minimum at 5 A, 125 VAC. Insulation resistance is 100 MΩ minimum at 500 VDC. Destructive shock resistance reaches 1,000 m/s² maximum and malfunction shock resistance reaches 500 m/s² maximum, while malfunction vibration resistance covers 10 to 55 Hz at 1.5 mm double amplitude. The 5 m cable is an important model-selection feature where longer wiring reach is needed. For a related D4C microload roller-lever model with a 5 m cable, see the D4C-4320 model.
