The Omron D4A0005N is a limit switch head from the D4A series, configured with a side-mounted roller lever plunger and a maintained action. The steel arm is fixed at a 0.59 in depth and the actuator returns to its original position after the roller is released — no latching, no momentary contact. The head is rated IP67, meaning the housing and plunger seal withstand directed water jets and temporary submersion, so it holds up on washdown lines or outdoor conveyor stations. CSA and UL listings confirm acceptance for North American panel builds.
Omron D4A0005N Limit Switch Head, Roller Lever Plunger, IP67
MPND4A0005N
Omron D4A Series, Limit Switch Head, Roller Lever Plunger, Side Actuator, Maintained Action, IP67, CSA, UL Listed.
$66.04 – $104.22Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | D4A |
| Compatible with series | D4A |
| IP rating | IP67 |
| NEMA enclosure rating | 1; 2; 3; 4X; 5; 6P; 12; 13 |
| Operating temperature - maximum | 212 °F |
| Operating temperature - minimum | -40 °F |
| Arm depth | 0.59 in |
| Arm material | Steel |
| Standards | CSA; UL Listed |
| Action | Maintained |
| Overtravel | 20° |
| Display qty | 1 |
All specifications
| Parameter | Value |
|---|---|
| Actuator style | Roller Lever Plunger |
| Display sell UOM | EA |
| Operating torque | 3.45 in-lb |
| Actuator location | Side |
| Arm adjustability | Fixed |
| Differential travel | 30° |
| Directional movement | Linear |
| Plunger adjustability | Fixed |
| Compatible with manufacturer model number | D4A1105N |
Product details
Frequently asked questions
What is the closest alternative to the D4A0005N in the D4A family?
The manufacturer lists D4A1105N as a compatible model — same head platform, different actuator style (straight plunger vs roller lever). For the roller lever configuration, the D4A0005N is the direct fit.
What does the maintained action mean on this limit switch head?
Maintained action means the switch contacts stay in their operated position only while the actuator is held — they return to the normal state when the roller is released. No latching.
MPN
D4A0005N