Omron ZC-N2255 Limit Switch
Omron ZC-N2255 is a compact limit switch with a sealed 9.5 mm × 4.7 mm stainless sintered alloy roller plunger for repeatable machine position detection. The sealed roller actuator supports smooth contact with cams, slides, and moving targets while helping protect the mechanism from industrial contaminants. Its SPDT contact form provides changeover switching for general control loads, and IP67 protection supports dusty or wet factory environments. Operation from -10 to 80°C and long service life suit repeated automation cycles. The ZC-N2255 belongs to the ZC-55 Series within the sealed roller plunger switch range from Omron industrial sensing products for reliable position and end-of-travel detection.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | ZC-N2255 |
Omron ZC-N2255 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Ctuator | Sealed roller plunger 9.5 dia. x 4.7 Stainless sintered alloy roller |
| Contact Form | SPDT |
| Frequency | 50/60 Hz |
| Load | General load |
| Ambient Temperature | Operating: -10 to 80 ℃ |
| Ambient Humidity | 35 to 95% RH |
| Pollution Degree | 3 (IEC947-5-1) |
| Shock Resistance | Destruction: 1000 m/s 2 |
| Degree Of Protection | IP67 |
| Contact Resistance Initial Value | 15 mΩ max. |
| Durability | Electrical: 500,000 operations min. Mechanical: 10 million operations min. |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
The Omron ZC-N2255 Limit Switch uses a sealed 9.5 mm × 4.7 mm stainless sintered alloy roller plunger for repeatable machine position detection. The rolling actuator provides smooth contact with cams, slides, and moving workpieces, while the sealed construction helps protect the operating mechanism from factory contaminants. Its SPDT contact form supports changeover switching for general control loads at 50/60 Hz. IP67 protection supports demanding environments exposed to dust or moisture, and the -10 to 80°C operating range suits a broad range of automated equipment. The compact roller-plunger design is useful where targets move across the sensing point during machine travel.
The ZC-N2255 is specified for at least 10 million mechanical operations and 500,000 electrical operations, supporting frequent switching over a long service life. Initial contact resistance is 15 mΩ maximum, while insulation resistance is 100 MΩ minimum at 500 VDC. Relative humidity can range from 35 to 95%, and the switch is specified for pollution degree 3 under IEC947-5-1. Destructive shock resistance is rated at 1,000 m/s². These characteristics support sealed roller-plunger position sensing where compact construction, SPDT switching, and environmental protection are important. For a related ZC-55 model using a sealed cross roller plunger for directional target approach, see the ZC-N2155 model.
