Omron D4C-4201 Limit Switch
Omron D4C-4201 is designed for microload switching and uses a 10 mm stainless steel pin plunger for direct mechanical actuation. Its electrical ratings are 0.1 A at 125 VAC and 0.1 A at 30 VDC, combined with SPDT contacts and a 3 m four-core VCTF oil-resistant cable. IP67 protection and a -10 to 70°C operating range are specified for this model. The D4C-4201 belongs to the D4C Series within the microload pin plunger limit switch range from Omron switching components. Its direct pin actuator distinguishes it from roller-plunger and roller-lever microload versions.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-4201 |
Omron D4C-4201 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Ctuator | Pin plunger 10 dia. Stainless steel plunger |
| 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-4201 Limit Switch is a microload version using a 10 mm stainless steel pin plunger and SPDT contacts. Its direct plunger construction is different from the roller-based microload variants in the same D4C group. The electrical specification is 0.1 A at 125 VAC and 0.1 A at 30 VDC. A four-core 3 m VCTF oil-resistant cable is supplied, with a nominal conductor section of 0.75 mm² and a 7.6 mm cable diameter. The source also specifies IP67 protection, an operating range from -10 to 70°C, and relative humidity between 35 and 95%.
Mechanical durability is listed at 10 million operations minimum, and contact resistance is 300 mΩ maximum. Destructive shock resistance is 1,000 m/s² maximum, with malfunction shock rated at 500 m/s² maximum. The principal selection difference is the pin plunger, which provides direct axial mechanical input instead of rolling contact. Its microload ratings also distinguish it from higher-current D4C models. For users who need the same stated microload ratings but prefer a roller contact rather than a direct plunger, the D4C-4203 uses a roller plunger.
