Omron D5B-8011 Limit Switch
Omron D5B-8011 is an M8 mechanical touch switch with a hemispheric actuator for direct tactile detection in compact machine systems. The rounded actuator provides a smooth contact surface for moving parts, while the slow-action mechanism supports resistive microloads from 1 mA at 5 VDC to 30 mA at 30 VDC. Its 1 m oil-resistant cable suits short wiring runs near the sensing point, and IP67 protection supports installations exposed to dust, water, or oil. The D5B-8011 belongs to the D5B Series within the M8 mechanical touch switch range from Omron sensing products for accurate contact, presence, and position feedback in space-limited machine assemblies.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D5B-8011 |
Omron D5B-8011 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Type | M8 |
| Shape Structure | Touch switches |
| Electrical Ratings | 1 mA at 5 VDC to 30 mA at 30 VDC |
| Load | Resistive load |
| Actuator Detail | Plunger |
| Repeat Accuracy | Plunger |
| Material Housing | Metal |
| Ambient Temperature | Operating: –10°C to 70°C (with no icing) |
| Ambient Humidity | Operating: 95% max. |
| Shock Resistance | Mechanical: 1,000 m/s2 min. Malfunction: 300 m/s2 min. |
| Degree Of Protection | IP67 |
| Cable Specifications | Oil-resistant cable |
| Insulation Resistance | 100 MΩ min. at 250 VDC between each terminal and ground |
| Cable Length | 1 m |
| Dielectric Strength | 250 VAC, 50/60 Hz for 1 min between terminals of same polarity (TTP) 1,000 VAC, 50/60 Hz for 1 min between current-carrying metal parts and ground (600 VAC for M5 model) |
| Actuator | Hemispheric |
| Vibration Resistance | Malfunction: 10 to 55 Hz, 1.5-mm double amplitude |
| Operating Mechanism | Slow action |
| Operating Speed | 5 to 500 mm/s |
| Operating Frequency | Mechanical: 120 operations/min. Electrical: 60 operations/min |
| Contact Resistance | 700 mΩ max. |
The Omron D5B-8011 Limit Switch is an M8 mechanical touch switch with a hemispheric actuator for direct tactile position detection. The rounded plunger provides a smooth contact surface for moving parts, while the slow-action mechanism supports resistive microloads from 1 mA at 5 VDC to 30 mA at 30 VDC. Operating speed ranges from 5 to 500 mm/s, allowing use with controlled mechanical movement. A 1 m oil-resistant cable provides compact prewired connection, while the metal body and IP67 protection support installations exposed to dust, water, or oil.
Insulation resistance is 100 MΩ minimum at 250 VDC between each terminal and ground, while contact resistance is 700 mΩ maximum. The D5B-8011 operates from -10 to 70°C with relative humidity up to 95%. Mechanical shock resistance is specified at 1,000 m/s² minimum, with malfunction shock resistance of 300 m/s² minimum. Malfunction vibration resistance covers 10 to 55 Hz at 1.5 mm double amplitude. The switch supports up to 120 mechanical and 60 electrical operations per minute. These characteristics suit M8 installations where a rounded actuator and short cable are preferred for reliable tactile position feedback. For the same M8 hemispheric actuator with a 3 m cable, see the D5B-8013 model.


