The Omron D4F1021R is a roller-plunger limit switch from the D4F series, built for position sensing in automated machinery. Its 1NO/1NC slow-action contacts switch AC loads up to 750 mA at 240 V and DC loads up to 270 mA at 250 V, with an insulation voltage rated at 500 VDC. The IP67 seal and 1 m cable make it a fit for washdown zones or dusty environments where a standard limit switch would fail early.
Omron D4F1021R Limit Switch, Roller Plunger, 1NO/1NC, IP67
MPND4F1021R
Omron D4F Series, Limit Switch, Roller Plunger Actuator, 1NO/1NC Slow-Action Contacts, 1 m Cable, IP67.
$49.91Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | D4F |
| Actuation | Roller Plunger |
| Operating force | 12 N |
| Termination type | Cable, 1 m |
| IP rating | IP67 |
| Insulation voltage | 500 VDC |
| Contact element type | Slow-Action |
| Contact configuration | 1NO;1NC |
| Switching current - AC | 750 mA |
| Switching current - DC | 270 mA |
| Switching voltage - AC | 240 V |
| Switching voltage - DC | 250 V |
Product details
Frequently asked questions
What are the key electrical ratings for the D4F1021R?
It switches AC loads up to 750 mA at 240 V and DC loads up to 270 mA at 250 V, with an insulation voltage of 500 VDC. The contact configuration is 1NO/1NC slow-action.
What actuator type and protection rating does the D4F1021R have?
It uses a roller plunger actuator and carries an IP67 protection rating, making it suitable for wet or dusty environments. Termination is via a 1 m cable.
MPN
D4F1021R