Omron D4C-6320 Limit Switch
Omron D4C-6320 combines an R38 roller lever, microload switching, and a 5 m prewired cable in one D4C configuration. The actuator uses a 17.5 mm × 7 mm sintered stainless steel roller, while the electrical rating is 0.1 A at 30 VDC. SPDT contacts, IP67 protection, and 10 million minimum mechanical operations are also specified. The D4C-6320 sits in the D4C Series within the microload roller lever switch range from Omron switching products. Its R38 lever and 5 m VCTF oil-resistant cable distinguish it from shorter-cable roller lever versions.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-6320 |
Omron D4C-6320 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 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-6320 Limit Switch uses an R38 roller lever carrying a 17.5 mm × 7 mm sintered stainless steel roller. The lever format allows the target to operate the switch by sweeping across an arc, which is mechanically different from the direct action of a roller plunger. Its SPDT contacts are specified for a microload of 0.1 A at 30 VDC. Wiring is provided through a four-core, 5 m VCTF oil-resistant cable with 0.75 mm² nominal conductor area and a 7.6 mm diameter. IP67 protection and an operating range of -10 to 70°C with 35 to 95% relative humidity are listed.
The source specifies 10 million minimum mechanical operations and 400 mΩ maximum contact resistance. Destructive shock resistance is 1,000 m/s² maximum, while malfunction shock resistance is 500 m/s² maximum. For model selection, the defining features are the R38 lever, low-current DC rating, and longer 5 m cable. These details differentiate the D4C-6320 from microload plunger versions and from similar lever models with shorter cables. If a 3 m connection is sufficient while retaining the same R38 lever concept, see the D4C-6220 model.


