Omron D4C-1220 Limit Switch
Omron D4C-1220 is a general-purpose limit switch with an R38 roller lever and a 17.5 mm × 7 mm sintered stainless steel roller for machine position detection. The lever actuator provides a wider approach path than a direct plunger, making it suitable for cams, slides, conveyors, and moving machine parts. Its SPDT contact form supports changeover switching for general loads, with ratings of 5 A at 250 VAC and 4 A at 30 VDC. IP67 protection supports demanding factory environments. The D4C-1220 belongs to the D4C Series within the R38 roller lever limit switch range from Omron industrial automation products for dependable travel and end-position sensing.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-1220 |
Omron D4C-1220 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-1220 Limit Switch uses an R38 roller lever with a 17.5 mm × 7 mm sintered stainless steel roller for machine position and travel detection. The lever arrangement provides a wider actuation path than a direct plunger, making it suitable for cams, slides, conveyors, and moving machine parts that sweep across the actuator. Its SPDT contact form supports changeover switching for general loads, with ratings of 5 A at 250 VAC and 4 A at 30 VDC. Inrush current capability reaches 20 A maximum on the NC side and 10 A maximum on the NO side. IP67 protection supports demanding factory installations.
The D4C-1220 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 position sensing where general-load switching, sealed protection, and a wider target approach path are important. The R38 lever geometry supports smooth actuation from moving machine components. For a related D4C model using an R38 roller lever with closely matched general-load characteristics, see the D4C-1620 model.
