Omron D4C-4302 Limit Switch
Omron D4C-4302 is a microload limit switch with a 12 mm × 4.4 mm sintered stainless steel roller plunger and SPDT switching. The rolling actuator suits moving parts that pass across the sensing point, while electrical ratings of 0.1 A at 125 VAC and 0.1 A at 30 VDC support low-current control circuits. A 5 m four-core VCTF oil-resistant cable provides extended prewired connection, and IP67 protection covers the switch body. The D4C-4302 belongs to the D4C Series within the microload roller plunger switch range from Omron limit switch products.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-4302 |
Omron D4C-4302 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 | 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-4302 Limit Switch uses a 12 mm × 4.4 mm sintered stainless steel roller plunger with 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 roller plunger provides smooth contact where a target passes across the sensing point, while the 5 m cable gives extended routing distance. For a related microload D4C roller-plunger model using a shorter 3 m cable, see the D4C-4203 model.


