Omron ZE-Q21-2 Limit Switch
The Omron ZE-Q21-2 Limit Switch offers Crossroller plunger actuator, General purpose shape, Side mounting mounting. Manufactured by Omron under the Omron Limit Switch category, this model belongs to the ZE Series.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | ZE-Q21-2 |
Omron ZE-Q21-2 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General purpose |
| 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 | Crossroller plunger |
| Vibration Resistance | Malfunction: 10 to 55 Hz, 1.5-mm double amplitude |
| Operating Speed | 0.01 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-Q21-2 is a compact enclosed switch built for general-purpose industrial use. It features a crossroller plunger actuator and SPDT contacts, offering precise detection and long-lasting performance in control systems. Designed for side mounting, it supports a wide range of motion speeds from 0.01 mm/s to 0.5 m/s and operates reliably at up to 120 mechanical operations per minute.
This model is rated for 15 A at 250 VAC (resistive load) and delivers up to 500,000 electrical operations, with a mechanical life exceeding 10 million cycles. It maintains low contact resistance (15 mΩ max.), high insulation resistance (100 MΩ min. at 500 VDC), and withstands harsh testing conditions including 1,000 m/s² shock and 10–55 Hz vibration.
The ZE-Q21-2 performs in environments from −10°C to 80°C and 35% to 95% humidity, and its sealed housing ensures dust and water resistance with IP65 protection.
