Omron ZE-NA2-2 Limit Switch
Omron ZE-NA2-2 is an enclosed limit switch with a sealed roller arm lever for reliable machine position and travel detection. The booted actuator helps protect the operating mechanism, while the roller arm suits cams, slides, and moving parts that sweep across the switch. Side mounting supports straightforward installation, and the SPDT AC contact arrangement is rated for 15 A at 250 VAC resistive load. Operating speed from 0.02 mm/s to 0.5 m/s supports varied machine movement, while IP65 protection suits factory use. The ZE-NA2-2 belongs to the ZE Series within the sealed enclosed limit switch range from Omron industrial control products for dependable position sensing.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | ZE-NA2-2 |
Omron ZE-NA2-2 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | Sealed (Booted) |
| Ambient Temperature | −10°C to +80°C (with no icing) |
| Ambient Humidity | General-purpose type: 35% to 85%RH Sealed type: 35% to 95%RH |
| Shock Resistance | Destruction: 1,000m/s2 max. Malfunction: 100 m/s2 max. 50 m/s2 max |
| Degree Of Protection | IP65 |
| Durability | Mechanical: 10,000,000 operations min. Electrical: 500,000 operations min., for 15 A, 250 VAC resistive load |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
| Built In Switch | SPDT (AC) |
| Mounting Direction | Side mounting |
| Dielectric Strength | Between terminals of the same polarity: 1,000 VAC, 50/60 Hz for 1 min Between current-carrying metal part and ground: 2,000 VAC, 50/60 Hz for 1 min Between each terminal and non-current-carrying metal part: 2,000 VAC, 50/60 Hz for 1 min |
| Actuator | Sealed roller arm lever |
| Vibration Resistance | Malfunction: 10 to 55 Hz, 1.5-mm double amplitude |
| Operating Speed | 0.02 mm/s to 0.5 m/s |
| Operating Frequency | Mechanical: 120 operations/min Electrical: 20 operations/min |
| Contact Resistance | 15 mΩ max. (initial value) |
| Rated Frequency | 50/60 Hz |
| Weight | Approx. 260 to 280 g |
The Omron ZE-NA2-2 Limit Switch uses a sealed roller arm lever in a booted enclosure for machine position and travel detection. The roller arm suits cams, slides, and moving components that sweep across the actuator, while the booted design helps protect the operating mechanism from dust and moisture. Side mounting supports straightforward installation on industrial equipment. The SPDT AC switching arrangement is rated for 15 A at 250 VAC resistive load, and operating speed ranges from 0.02 mm/s to 0.5 m/s. IP65 protection supports factory use, while the sealed version can operate in environments with relative humidity up to 95%.
Mechanical durability is specified at 10 million operations minimum, while electrical durability reaches 500,000 operations minimum at 15 A, 250 VAC resistive load. Initial contact resistance is 15 mΩ maximum and insulation resistance is 100 MΩ minimum at 500 VDC. The ZE-NA2-2 operates from -10 to 80°C and withstands destructive shock up to 1,000 m/s². Malfunction vibration resistance covers 10 to 55 Hz at 1.5 mm double amplitude. These characteristics support sealed roller-arm position sensing in packaging equipment, machine tools, and other mechanisms requiring high-load AC switching. For a related ZE enclosed switch using a sealed roller plunger instead of a roller arm, see the ZE-N22-2 model.
