Omron D4C-6331 Limit Switch
Omron D4C-6331 is a microload limit switch with a sealed pin plunger for direct mechanical position detection. The straight actuator suits machine stops, slides, fixtures, and other targets that approach the sensing point head-on. Its SPDT contact form supports low-current control signals, while a 5 m VCTF oil-resistant cable provides flexible wiring between the switch and control system. IP67 protection helps the unit withstand dust, water, and industrial contaminants. The D4C-6331 belongs to the D4C Series within the microload pin plunger switch range from Omron industrial control products for precise machine position and end-of-travel sensing.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-6331 |
Omron D4C-6331 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Contact Form | SPDT |
| Electrical Ratings | 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, 5m |
| Actuator | Sealed pin plunger |
The Omron D4C-6331 Limit Switch uses a sealed pin plunger for direct mechanical position detection in industrial equipment. The straight-line actuator is suited to machine stops, slides, fixtures, and moving parts that approach the switch head-on, providing a defined switching point. Its SPDT contact form supports microload control circuits with a 0.1 A at 30 VDC rating. A 5 m VCTF oil-resistant cable provides a prewired connection for installations where the switch is positioned away from the control point. IP67 protection helps the switch operate around dust, water, oil, and common factory contaminants, while the compact D4C format suits restricted machine spaces.
The D4C-6331 operates from -10 to 70°C with 35 to 95% relative humidity. Mechanical durability is specified at 10 million operations minimum, while electrical durability reaches 200,000 operations minimum. Contact resistance is 400 mΩ maximum. Destructive shock resistance reaches 1,000 m/s² maximum, and malfunction shock resistance reaches 500 m/s² maximum. These specifications make the model useful where low-level switching, direct plunger actuation, sealed construction, and a longer prewired cable are needed together. The 5 m oil-resistant cable also supports routing through machine areas where exposure to lubricants may occur. For a related D4C model using a stainless steel pin plunger for general-load position detection, see the D4C-3201 model.


