Omron D4C-1432 Limit Switch
Omron D4C-1432 is a general-purpose limit switch with a sealed roller plunger using a 12 mm × 4.4 mm sintered stainless steel roller for repeatable position detection. The sealed rolling actuator suits cams, slides, and moving parts 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-1432 belongs to the D4C Series within the sealed roller plunger switch range from Omron control products for machine position, travel, and end-point sensing with rolling actuator contact.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-1432 |
Omron D4C-1432 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Ctuator | Sealed 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 |
| 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-1432 Limit Switch uses a sealed roller plunger with a 12 mm × 4.4 mm sintered stainless steel roller for repeatable mechanical position detection. The rolling actuator suits cams, slides, and moving targets that pass across the sensing point, while the sealed actuator arrangement keeps the plunger mechanism enclosed. Its 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.
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. The D4C-1432 operates from -10 to 70°C with 35 to 95% relative humidity. Destructive shock resistance reaches 1,000 m/s² maximum and malfunction shock resistance reaches 500 m/s² maximum. These characteristics suit repeated roller-plunger sensing where the target passes across the actuator rather than making a direct axial push. The sealed roller plunger is the primary actuator feature to compare with other D4C configurations. For another D4C model using a sealed roller plunger with a 5 m VCTF cable, see the D4C-1532 model.


