Omron D4C-1603 Limit Switch
Omron D4C-1603 is a general-purpose limit switch with a 12 mm × 4.4 mm cross roller plunger using a sintered stainless steel roller for directional machine position detection. The cross-roller actuator suits moving targets that pass across the sensing point, 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, and IP67 protection covers the enclosed switch body. The D4C-1603 belongs to the D4C Series within the cross roller plunger switch range from Omron control products for directional travel and position sensing where rolling contact is preferred over a straight pin plunger.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-1603 |
Omron D4C-1603 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Ctuator | Cross roller plunger 12 dia. x 4.4 Sintered stainless steel roller |
| Contact Form | SPDT |
| Electrical Ratings | 5 A at 250 VAC/ 4 A at 30 VDC |
| 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 |
| Permissible Operating Speed | Electrical: 30 operations / 1 minute max. Mechanical: 120 operations / 1 minute max. |
The Omron D4C-1603 Limit Switch uses a 12 mm × 4.4 mm cross roller plunger with a sintered stainless steel roller for directional mechanical position detection. The rolling actuator suits targets that pass across the sensing point, while the SPDT contact form provides changeover switching for general loads. Electrical ratings are 5 A at 250 VAC and 4 A at 30 VDC, with inrush capability of 20 A maximum on the NC side and 10 A maximum on the NO side. IP67 protection covers the enclosed switch body. The model operates from -10 to 70°C with 35 to 95% relative humidity.
The D4C-1603 is specified for up to 120 mechanical operations and 30 electrical operations per minute. It is listed for pollution degree 3 under EN60947-5-1 and as Class I 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 directional position sensing where the target moves across the actuator rather than directly into a pin plunger. The cross roller is the main actuator feature when comparing this model with direct-plunger versions. For a related D4C cross roller plunger model with a specified operating-speed range of 0.1 mm/s to 0.5 m/s, see the D4C-1633 model.
