Omron D4C-1401 Limit Switch
Omron D4C-1401 is a general-purpose limit switch with a 10 mm stainless steel pin plunger for direct machine position and end-of-travel detection. The straight actuator suits stops, slides, and moving parts that approach the sensing point head-on, 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 IP67 protection for the enclosed switch body. The D4C-1401 belongs to the D4C Series within the pin plunger limit switch range from Omron control products for direct travel, position, and end-point sensing on moving machine parts.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-1401 |
Omron D4C-1401 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Ctuator | Pin plunger 10 dia. Stainless steel plunger |
| 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 |
| 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. |
The Omron D4C-1401 Limit Switch uses a 10 mm stainless steel pin plunger for direct mechanical position and end-of-travel detection. The straight actuator suits targets that approach the sensing point head-on, 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.
Mechanical durability is specified at 10 million operations minimum, while electrical durability reaches 200,000 operations minimum at 5 A, 125 VAC. Initial contact resistance is 300 mΩ maximum. Destructive shock resistance reaches 1,000 m/s² maximum and malfunction shock resistance reaches 500 m/s² maximum. These specifications suit direct plunger applications where a moving stop or slide presses into the actuator rather than passing across a roller. The stainless steel pin plunger is the main mechanical distinction and gives a defined axial contact point for repeated position feedback. For a related D4C model using a cross roller plunger for directional target movement, see the D4C-1403 model.


