Omron D4C-1620 Limit Switch
Omron D4C-1620 is a general-purpose limit switch with an R38 roller lever and stainless steel roller for machine position detection. The lever design provides a wider actuation path than a direct plunger, making it suitable for cams, slides, conveyors, and moving machine parts. Its SPDT contact form supports changeover control, with ratings of 5 A at 250 VAC and 4 A at 30 VDC for standard industrial loads. IP67 protection supports demanding factory environments. The D4C-1620 belongs to the D4C Series within the R38 roller lever limit switch range from Omron industrial automation products for dependable machine travel and end-position sensing.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-1620 |
Omron D4C-1620 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 | 5 A at 250 VAC/ 4 A at 30 VDC |
| Frequency | 50/60 Hz |
| Load | General load |
| Inrush Current | NC: 20 A max. NO: 10 A max. |
| Ambient Temperature | Operating: -10 to 70 ℃ (with no icing) |
| Ambient Humidity | 35 to 95% RH |
| Pollution Degree | 3 (EN60947-5-1) |
| Shock Resistance | Destruction: 1,000 m/s 2 max. Malfunction: 500 m/s 2 max. |
| Classification Of Protection Against Electric Shock | Class I (with earth wire) |
| Degree Of Protection | IP67 |
The Omron D4C-1620 Limit Switch uses an R38 roller lever with a 17.5 mm × 7 mm sintered stainless steel roller for mechanical position detection. The lever arrangement provides a wider approach path than a direct plunger, making it suitable for cams, conveyors, slides, and moving machine parts that sweep across the actuator. Its SPDT contact form provides changeover switching for general loads. Electrical ratings include 5 A at 250 VAC and 4 A at 30 VDC, with inrush capability up to 20 A on the NC side and 10 A on the NO side. IP67 protection supports demanding factory installations.
The D4C-1620 operates from -10 to 70°C with 35 to 95% relative humidity and is specified for pollution degree 3 under EN60947-5-1. It is a Class I device with an earth wire for grounded machine installations. Destructive shock resistance reaches 1,000 m/s² maximum, while malfunction shock resistance reaches 500 m/s² maximum. These characteristics make the model suitable for repeated roller-lever travel and end-position sensing where general-load switching, sealed protection, and robust actuator construction are important. The R38 lever geometry is also a useful model-selection point within the D4C family. For another D4C model using an R38 roller lever, see the D4C-3320 model.
