Omron D5B-1511 Limit Switch
Omron D5B-1511 is an M10 mechanical touch switch with a short-spring wobble stick actuator for flexible contact detection in compact machinery. The spring actuator can respond to light mechanical contact without requiring rigid target alignment, while slow-action SPST-NC switching supports microloads from 1 mA at 5 VDC to 10 mA at 30 VDC. A 1 m oil-resistant cable simplifies connection in compact equipment, and IP67 protection supports dusty, wet, or oily factory conditions. The D5B-1511 belongs to the D5B Series within the wobble stick touch switch range from Omron sensing products for machine presence and position detection in compact automation systems.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D5B-1511 |
Omron D5B-1511 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Type | M10 |
| Shape Structure | Touch switches |
| Contact Configuration | SPST-NC |
| Electrical Ratings | 1 mA at 5 VDC to 10 mA at 30 VDC |
| Load | Resistive load |
| Actuator Detail | Short spring |
| Repeat Accuracy | Short spring |
| Material Housing | Metal |
| Ambient Temperature | Operating: -10 to 70 ℃ (with no icing) |
| Ambient Humidity | 35 to 95 % |
| Shock Resistance | Destruction: 1,000 m/s2 max. Malfunction: 50 m/s2 max. |
| Degree Of Protection | IP67 |
| Durability | Electrical: 5,000,000 operations min. (30 mA at 30 VDC) Mechanical: 10 million operations min. |
| Cable Specifications | Oil-resistant cable |
| Insulation Resistance | Between each terminal and non-live-metallic part: 100 MΩ min. (at 250 VDC) |
| Cable Length | 1 m |
| Dielectric Strength | Between each terminal of the same polarities: 250 VAC 50/60Hz 1 min (TTP) Between each terminal and non-live-metallic part: 1,000 VAC 50/60 Hz 1 min |
| Actuator | Wobble stick |
| Vibration Resistance | Malfunction: 16.7 Hz, 1-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-1511 Limit Switch is an M10 mechanical touch switch with a short-spring wobble stick actuator for flexible contact detection in compact machinery. The spring actuator can respond to light mechanical contact without requiring rigid target alignment, while the slow-action SPST-NC contact supports resistive microloads from 1 mA at 5 VDC to 10 mA at 30 VDC. Operating speed ranges from 5 to 500 mm/s. A 1 m oil-resistant cable supports compact machine wiring, while the metal body and IP67 protection help the switch operate around dust, water, oil, and other industrial contaminants.
Mechanical durability is specified at 10 million operations minimum, while electrical durability reaches 5 million operations minimum. Contact resistance is 700 mΩ maximum, and insulation resistance is 100 MΩ minimum at 250 VDC between each terminal and non-live metallic parts. The D5B-1511 operates from -10 to 70°C with 35 to 95% relative humidity. Destructive shock resistance reaches 1,000 m/s² maximum, while malfunction shock resistance is 50 m/s² maximum. Malfunction vibration resistance is specified at 16.7 Hz with 1 mm double amplitude. These characteristics suit light-contact sensing where flexible actuation, compact M10 mounting, and a short prewired cable are required. For a related D5B short-spring wobble stick model with a longer 5 m cable, see the D5B-1515 model.


