Omron D4C-1220-P Limit Switch
Omron D4C-1220-P 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 suits cams, conveyors, and moving parts that sweep across the roller, while the SPDT contact form provides changeover switching for general loads. Electrical ratings of 5 A at 250 VAC and 4 A at 30 VDC support common control circuits, with high inrush capability on the NC and NO paths. IP67 protection supports enclosed installations. The D4C-1220-P belongs to the D4C Series within the roller lever limit switch range from Omron control components for machine travel and end-position sensing.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-1220-P |
Omron D4C-1220-P 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-P 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 actuator provides a wider approach path than a direct plunger and suits cams, conveyors, and moving parts that sweep across the roller. 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 enclosed machine installations.
The D4C-1220-P 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. Destructive shock resistance reaches 1,000 m/s² maximum, while malfunction shock resistance reaches 500 m/s² maximum. These characteristics suit roller-lever position sensing where general-load switching, rolling contact, and a wider target approach path are important. The R38 lever geometry is useful when the moving target needs to contact the actuator over an arc rather than press directly into a plunger. For a related D4C model using the same general-load concept with an adjustable stainless steel rod lever, see the D4C-1229-P model.
