Omron D5B-5011 Limit Switch
Omron D5B-5011 is an M5 mechanical touch switch with a hemispheric actuator for sensitive contact detection in compact automation equipment. The rounded actuator suits small moving parts that make direct tactile contact with the switch, while slow-action operation supports controlled low-current switching. A 1 m oil-resistant cable simplifies installation in confined equipment, and IP67 protection supports environments exposed to dust, water, or oil. The D5B-5011 belongs to the D5B Series within the precision mechanical touch switch range from Omron sensing products for accurate machine contact, presence, and position detection.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D5B-5011 |
Omron D5B-5011 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Type | M5 |
| 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-5011 Limit Switch is an M5 mechanical touch switch with a hemispheric actuator for sensitive contact detection in compact automation equipment. The rounded actuator suits small moving parts that make direct tactile contact with the switch, while slow-action operation provides controlled switching. The model handles resistive microloads from 1 mA at 5 VDC to 30 mA at 30 VDC and operates at speeds from 5 to 500 mm/s. A 1 m oil-resistant cable provides a prewired connection for compact installations, while the metal body and IP67 protection support use around dust, water, and factory contaminants.
Insulation resistance is 100 MΩ minimum at 250 VDC between each terminal and ground, while contact resistance is 700 mΩ maximum. The D5B-5011 operates from -10 to 70°C with 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 precise low-current contact detection where small size, oil-resistant wiring, and environmental sealing are important. For a related D5B M5 hemispheric touch switch with a longer cable configuration, see the D5B-5015 model.


