Omron SHL-W255-01 Limit Switch
Omron SHL-W255-01 is an enclosed microload limit switch with a short hinge roller lever, SPDT contacts, and snap-action operation. It supports non-inductive loads of 0.1 A at 125 VAC and 0.1 A at 8, 14, or 30 VDC. The zinc construction is specified with IP67 protection, 15 mΩ maximum contact resistance, and 100 MΩ minimum insulation resistance. The SHL-W255-01 belongs to the SHL Series within the short hinge roller limit switch range from Omron limit switch products. Its short roller lever and microload rating are important selection details.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | SHL-W255-01 |
Omron SHL-W255-01 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | Enclosed Limit switches |
| Contact Form | SPDT |
| Electrical Ratings | Non-Inductive load (AC): 0.1 A at 125 VAC Non-Inductive load (DC): 0.1 A at 8 VDC/0.1 A at 14 VDC/0.1 A at 30 VDC |
| Load | Micro load |
| Material Housing | Zinc |
| Ambient Temperature | Operating: -10 to 80 ℃ (with no icing) |
| Ambient Humidity | 35 to 95 % |
| Shock Resistance | Destruction: 1,000 m/s2 max. Malfunction: 300 m/s2 max. |
| Degree Of Protection | IP67 |
| Durability | Electrical: 500,000 operations min. Mechanical: 10 million operations min. |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
| Dielectric Strength | Between each terminal of the same polarities: 1,000 VAC 50/60 Hz 1 min Between each terminal and non-live-metallic part: 2,000 VAC 50/60 Hz 1 min |
| Actuator | Short hinge roller lever |
| Vibration Resistance | Malfunction: 10 to 55 Hz, 1.5 mm double amplitude |
| Operating Mechanism | Snap action |
| Contact Resistance | 15 mΩ max. |
| Rated Frequency | 50/60 Hz |
The Omron SHL-W255-01 Limit Switch uses a short hinge roller lever with SPDT contacts and snap-action operation. It is classified as an enclosed microload switch and supports non-inductive loads of 0.1 A at 125 VAC and 0.1 A at 8, 14, or 30 VDC. Zinc construction is listed together with IP67 protection. Contact resistance is 15 mΩ maximum, while insulation resistance is 100 MΩ minimum at 500 VDC. The operating range is -10 to 80°C with 35 to 95% relative humidity. Mechanical durability reaches ten million operations minimum and electrical durability reaches 500,000 operations minimum.
Malfunction vibration resistance is specified from 10 to 55 Hz at 1.5 mm double amplitude. The source lists shock values of 1,000 m/s² maximum for destruction and 300 m/s² maximum for malfunction. Dielectric strength is 1,000 VAC for one minute between terminals of the same polarity and 2,000 VAC between terminals and non-live metallic parts. The short roller lever is the primary actuator distinction. For another SHL model using a unidirectional stainless-steel roller lever, see the SHL-W355.
