Omron ZC-Q55 Limit Switch
Omron ZC-Q55 is a panel-mount limit switch with a 7.8 mm stainless steel plunger for direct mechanical position detection in compact industrial equipment. The panel-mount construction supports installation through a machine surface, while the straight plunger suits targets that approach the sensing point head-on. Its SPDT contact form provides changeover switching for general control loads, and IP67 protection supports factory environments exposed to dust or moisture. Operation from -10 to 80°C and long service life suit repeated machine cycles. The ZC-Q55 belongs to the ZC-55 Series within the panel-mount plunger switch range from Omron machine control products for accurate position and travel detection.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | ZC-Q55 |
Omron ZC-Q55 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Ctuator | Panel mount plunger 7.8 dia. Stainless steel plunger |
| 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-Q55 Limit Switch uses a 7.8 mm stainless steel panel-mount plunger for direct position detection in compact industrial equipment. The panel-mount format allows the actuator to project through a machine surface while the switch body remains secured behind the mounting area. Its straight plunger suits stops, slides, jigs, and moving parts that approach the sensing point head-on. The SPDT contact form provides changeover switching for general control loads at 50/60 Hz. IP67 protection supports factory environments exposed to dust or moisture, while the -10 to 80°C operating range covers a broad range of machine conditions.
The ZC-Q55 is specified for at least 10 million mechanical operations and 500,000 electrical operations, supporting frequent switching in automated machinery. Initial contact resistance is 15 mΩ maximum, and 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 make the model useful where panel mounting, direct plunger actuation, SPDT switching, and sealed industrial protection are required together. The panel-mount construction is its main installation distinction within the ZC-55 plunger family. For a related ZC-55 model using a conventional stainless steel plunger arrangement, see the ZC-D55 model.
