Omron D4C-3332 Limit Switch
Omron D4C-3332 is a general-purpose limit switch with a sealed stainless steel roller plunger for accurate position detection on industrial machinery. The rolling actuator supports smooth contact with cams, slides, and moving workpieces, while the sealed construction helps protect the switching mechanism from factory contaminants. Its SPDT contact form provides changeover switching for general loads, with a 4 A at 30 VDC rating. IP67 protection supports demanding automation environments. The D4C-3332 belongs to the D4C Series within the sealed industrial roller switch range from Omron machine automation products for reliable travel and end-position detection.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4C-3332 |
Omron D4C-3332 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 | 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 |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
The Omron D4C-3332 Limit Switch uses a sealed 12 mm × 4.4 mm roller plunger with a sintered stainless steel roller for accurate machine position detection. The sealed roller design supports smooth contact with cams, slides, conveyors, and workpieces while helping protect the actuator mechanism from factory contaminants. Its SPDT contact form provides changeover switching for general loads, with a 4 A at 30 VDC rating. Inrush current capability reaches 20 A maximum on the NC side and 10 A maximum on the NO side. IP67 protection supports installation around dust, water, and demanding industrial conditions.
The D4C-3332 operates from -10 to 70°C with 35 to 95% relative humidity and is specified for pollution degree 3 under EN60947-5-1. Insulation resistance is 100 MΩ minimum at 500 VDC. The switch is Class I with an earth wire, supporting 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 travel and end-position detection where sealed roller actuation, SPDT switching, and industrial environmental protection are important. Its stainless steel roller supports durable contact with frequently moving machine targets. For a related D4C sealed roller-plunger model with ratings of 5 A at 250 VAC and 4 A at 30 VDC, see the D4C-1332 model.
