Omron SHL-D55 Limit Switch
Omron SHL-D55 is a compact limit switch with a 7.8 mm stainless steel plunger for direct mechanical position detection in industrial machinery. The straight plunger actuator suits stops, slides, jigs, and moving parts that approach the switch head-on, while the SPDT contact form provides changeover switching for general loads. IP67 protection and operation from -10 to 80°C support environments exposed to dust, water, and normal factory contaminants. Long mechanical durability makes the switch suitable for repeated machine travel and end-position sensing. The SHL-D55 belongs to the SHL Series within the industrial plunger limit switch range from Omron control components for reliable machine position detection.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | SHL-D55 |
Omron SHL-D55 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Ctuator | 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 (EN60947-5-1) |
| Shock Resistance | Destruction: 1000 m/s 2 Malfunction: 300 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 SHL-D55 Limit Switch uses a 7.8 mm stainless steel plunger for direct mechanical position detection in industrial machinery. The straight plunger actuator is suited to stops, slides, jigs, and moving parts that approach the switch head-on, providing a defined switching point for travel and end-position sensing. Its SPDT contact form provides changeover switching for general loads at 50/60 Hz. IP67 protection helps protect the switch from dust, water, and common factory contaminants, while the compact plunger arrangement supports installation where direct target contact is preferred over roller or lever actuation.
The SHL-D55 is specified for at least 10 million mechanical operations and 500,000 electrical operations, supporting repeated actuation in automated equipment. Initial contact resistance is 15 mΩ maximum, and insulation resistance is 100 MΩ minimum at 500 VDC. The switch operates from -10 to 80°C with 35 to 95% relative humidity and is specified for pollution degree 3 under EN60947-5-1. Destructive shock resistance is 1,000 m/s², with malfunction shock resistance of 300 m/s². These characteristics suit direct plunger position sensing in compact industrial machines. The stainless steel plunger also supports durable direct contact with moving machine components during repeated cycles. For a closely related SHL plunger model intended for microload circuits, see the SHL-D55-01 model.
