Omron D4C-4320 Limit Switch
Omron D4C-4320 is a microload limit switch with an R38 roller lever using a 17.5 mm × 7 mm sintered stainless steel roller. The lever actuator suits moving targets that sweep across the sensing point, while SPDT switching supports low-current control circuits rated at 0.1 A at 125 VAC and 0.1 A at 30 VDC. A 5 m four-core VCTF oil-resistant cable provides longer routing distance, and IP67 protection covers the switch body. The D4C-4320 belongs to the D4C Series within the microload roller lever switch range from Omron limit switch products.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-4320 |
Omron D4C-4320 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Ctuator | Roller lever 17.5 dia. x 7 Sintered stainless steel roller R38 |
| Contact Form | SPDT |
| Electrical Ratings | 0.1 A at 125 VAC/ 0.1 A at 30 VDC |
| Load | Micro load |
| Ambient Temperature | Operating: -10 to 70 ℃ (with no icing) |
| Ambient Humidity | 35 to 95% RH |
| Shock Resistance | Destruction: 1,000 m/s 2 max. Malfunction: 500 m/s 2 max. |
| Degree Of Protection | IP67 |
| Contact Resistance Initial Value | 400 mΩ max. |
| Durability | Electrical: 200,000 operations min. (5 A at 125 VAC) Mechanical: 10 million operations min. |
| Cable Specifications | VCTF oil-resistant cable, 4 cores, 5 m Nominal sectional area: 0.75 mm 2 Diameter: 7.6 dia. |
The Omron D4C-4320 Limit Switch uses an R38 roller lever with a 17.5 mm × 7 mm sintered stainless steel roller and SPDT switching for microload position detection. Electrical ratings are 0.1 A at 125 VAC and 0.1 A at 30 VDC. A four-core 5 m VCTF oil-resistant cable is supplied, with a nominal conductor sectional area of 0.75 mm² and a cable diameter of 7.6 mm. IP67 protection covers the switch body, while operation is specified from -10 to 70°C with 35 to 95% relative humidity.
Mechanical durability is specified at 10 million operations minimum, while the source also lists electrical durability at 200,000 operations minimum at 5 A, 125 VAC. Initial contact resistance is 400 mΩ maximum. Destructive shock resistance reaches 1,000 m/s² maximum and malfunction shock resistance reaches 500 m/s² maximum. The R38 roller lever suits moving targets that sweep across the actuator, while the 5 m cable provides extended wiring reach. For another D4C microload roller-lever model with a 5 m cable and the same 0.1 A ratings, see the D4C-4520 model.
