Omron D4C-4203 Limit Switch
Omron D4C-4203 combines microload switching with a 12 mm × 4.4 mm sintered stainless steel roller plunger. The SPDT contacts are rated at 0.1 A at 125 VAC and 0.1 A at 30 VDC, while a 3 m four-core VCTF oil-resistant cable provides the prewired electrical connection. IP67 protection and a -10 to 70°C operating range are also specified. The D4C-4203 is part of the D4C Series within the microload roller plunger switch range from Omron control components. Its roller contact differentiates it from the direct pin-plunger D4C microload configuration.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-4203 |
Omron D4C-4203 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Ctuator | Roller plunger 12 dia. x 4.4 Sintered stainless steel roller |
| 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 | 300 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, 3 m Nominal sectional area: 0.75 mm 2 Diameter: 7.6 dia. |
The Omron D4C-4203 Limit Switch combines microload electrical ratings with a 12 mm × 4.4 mm sintered stainless steel roller plunger. The SPDT contacts are specified at 0.1 A at 125 VAC and 0.1 A at 30 VDC. Its four-core VCTF oil-resistant cable is 3 m long, with a nominal conductor sectional area of 0.75 mm² and an overall diameter of 7.6 mm. IP67 protection is specified, together with operation from -10 to 70°C and 35 to 95% relative humidity. These details define a prewired microload version with rolling mechanical contact.
The source gives 300 mΩ as the maximum contact resistance and lists mechanical durability at 10 million operations minimum. Destructive shock resistance reaches 1,000 m/s² maximum, while malfunction shock resistance is 500 m/s² maximum. Compared with the D4C-4201, the main difference is mechanical rather than electrical: both use the same stated microload ratings, but this model substitutes a roller plunger for the direct stainless steel pin. That makes actuator style the primary comparison point between them. For the direct-plunger alternative, see the D4C-4201 model.
