Omron D4V-8104Z Limit Switch
Omron D4V-8104Z is a compact enclosed limit switch with a roller lever for machine position and end-of-travel detection. The lever actuator suits cams, conveyors, slides, presses, and moving mechanisms that sweep across the switch, while operation from 5 mm/s to 0.5 m/s supports varied machine speeds. Its 5 A at 250 VAC resistive-load capability suits standard control circuits, and IP65 protection supports normal factory environments. The D4V-8104Z belongs to the D4V Series within the compact roller lever limit switch range from Omron industrial control products for reliable machine travel and position sensing.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4V-8104Z |
Omron D4V-8104Z Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Ambient Temperature | −20°C to 60°C (with no icing) |
| Ambient Humidity | 90% max |
| Shock Resistance | Destruction: 1,000 m/s2 (free position) min. Malfunction: 300 m/s2 (operation limit position) min. |
| Degree Of Protection | IP65 |
| Durability | Mechanical: 10,000,000 operations min. Electrical: 300,000 operations min. (5 A at 250 VAC, resistive load) |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
| Dielectric Strength | Between terminals of the same polarity: 1,000 VAC, 50/60 Hz for 1 min Between currentcarrying metal parts and ground: 1,500 VAC, 50/60 Hz for 1 min |
| Actuator | Roller lever |
| Vibration Resistance | Malfunction: 10 to 55 Hz, 1.5-mm double amplitude |
| Operating Speed | 5 mm to 0.5 m/s |
| Operating Frequency | Mechanical: 120 operations/min Electrical: 30 operations/min |
| Contact Resistance | 25 mΩ max. (initial value) |
| Rated Insulation Voltage Ui | 250 V |
| Weight | Approx. 130 to 190 g |
The Omron D4V-8104Z Limit Switch uses a roller lever actuator for mechanical position and end-of-travel detection in industrial machinery. The lever arrangement suits cams, conveyors, slides, presses, and moving machine parts that sweep across the actuator over a defined travel path. Operating speed ranges from 5 mm/s to 0.5 m/s, with up to 120 mechanical operations and 30 electrical operations per minute. The switch is specified for 5 A at 250 VAC resistive-load operation and provides IP65 protection for normal factory environments. Its compact construction supports installation where space around the moving mechanism is limited.
Mechanical durability is specified at 10 million operations minimum, while electrical durability reaches 300,000 operations minimum at 5 A, 250 VAC. Initial contact resistance is 25 mΩ maximum, and insulation resistance is 100 MΩ minimum at 500 VDC. The D4V-8104Z operates from -20 to 60°C and withstands destructive shock of at least 1,000 m/s² and malfunction shock of at least 300 m/s². Malfunction vibration resistance covers 10 to 55 Hz at 1.5 mm double amplitude. These characteristics support high-cycle roller-lever position sensing in compact automated machinery. For a related D4V model using a roller plunger actuator for more direct target contact, see the D4V-8112Z model.


