Omron D5B-1531 Limit Switch
Omron D5B-1531 is an M10 mechanical touch switch with a long-spring wobble stick actuator for light-contact detection where target alignment can vary. Its slow-action design supports resistive microloads from 1 mA at 5 VDC to 30 mA at 30 VDC, while the 5 to 500 mm/s operating-speed range suits controlled machine movement. A 1 m oil-resistant cable simplifies connection near the sensing point, and IP67 protection supports use around dust, water, or oil. The D5B-1531 belongs to the D5B Series within the mechanical touch switch range from Omron sensing products for precise contact, presence, and position detection in compact machine assemblies.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D5B-1531 |
Omron D5B-1531 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Type | M10 |
| Shape Structure | Touch switches |
| Electrical Ratings | 1 mA at 5 VDC to 30 mA at 30 VDC |
| Load | Resistive load |
| Actuator Detail | Long spring |
| Repeat Accuracy | Long spring |
| 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 | Wobble stick |
| 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-1531 Limit Switch uses a long-spring wobble stick actuator for light-contact detection where the target does not always approach from one fixed direction. Its M10 metal body supports compact threaded mounting, while the slow-action mechanism provides controlled switching for resistive microloads from 1 mA at 5 VDC to 30 mA at 30 VDC. Operating speed ranges from 5 to 500 mm/s, making the switch suitable for slow or moderate mechanical movement. A 1 m oil-resistant cable provides a prewired connection close to the sensing point, and IP67 protection supports 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-1531 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 compact contact-sensing applications where spring flexibility and short cable routing are important. For a related D5B wobble stick model using a short spring and 1 m cable, see the D5B-1511 model.
