Omron D4C-3220 Limit Switch
Omron D4C-3220 is a general-load limit switch with an R38 roller lever using a 17.5 mm dia. × 7 mm sintered stainless-steel roller. It has SPDT contacts and a listed rating of 4 A at 30 VDC. A 3 m VCTF oil-resistant four-core cable and IP67 protection are specified. Mechanical durability is ten million operations minimum. The D4C-3220 R38 Lever Cable Switch belongs to the D4C Series within the Omron Cable Type Limit Switch Range from Omron Industrial Switching Range. Its R38 lever, stainless-steel roller, 30 VDC rating, 3 m cable, and IP67 protection define this model.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-3220 |
Omron D4C-3220 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 | 4 A at 30 VDC |
| Load | General 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-3220 Limit Switch uses an R38 roller lever with a 17.5 mm dia. × 7 mm sintered stainless-steel roller and an SPDT contact form. It is classified for general load and has a listed rating of 4 A at 30 VDC. Maximum contact resistance is 300 mΩ. Electrical durability is 200,000 operations minimum under the source-stated 5 A at 125 VAC test condition, while mechanical durability is ten million operations minimum. A VCTF oil-resistant four-core cable is specified with a 3 m length, nominal sectional area of 0.75 mm², and 7.6 mm diameter.
Operating temperature ranges from -10 to 70°C with no icing, and relative humidity is 35 to 95%. Destructive shock resistance is 1,000 m/s² maximum and malfunction shock resistance is 500 m/s² maximum. IP67 protection is specified. The electrical-durability test condition is kept separate from the listed 4 A at 30 VDC rating rather than being treated as another normal load rating. The structured source does not include an LED field or insulation-resistance value for this row, so those claims from the older meta text are omitted. The strongest model terms remain R38 roller lever, stainless-steel roller, SPDT, general load, 30 VDC rating, 3 m oil-resistant cable, and IP67 protection. For another D4C R38 roller-lever model, see D4C-1420.
