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Omron E3FBRP21OMI — Photoelectric Sensors

Omron E3FBRP21OMI Retro-Reflective Sensor, PNP, 4m, M12

MPNE3FBRP21OMI

Omron E3FB series retro-reflective photoelectric sensor, PNP output, 4 m sensing range, M12 4-pin connector, IP67/IP69K, 100 mA load, 500 μs response.

$91.76 – $96.58Ref. price · indicative, final on quote
Omron E3FBRP21OMI datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

E3FBRP21OMI — Identification
ParameterValue
SeriesE3FB
Sensor typeRetro-Reflective Sensor
E3FBRP21OMI — Sensing
ParameterValue
Sensing distance, max.4 m
Sensing distance, min.100 mm
Response time500 us
Light typeLED, Red
E3FBRP21OMI — Electrical
ParameterValue
Operating voltage, min.10 V
Operating voltage, max.30 V
E3FBRP21OMI — Output
ParameterValue
Output typePNP
Load current100 mA
Switching typeLight-ON / Dark-ON
E3FBRP21OMI — Connection
ParameterValue
Termination typeConnector, M12, 4-Pin
E3FBRP21OMI — Environmental
ParameterValue
Protection rating (IP)IP67;IP69K
Operating temperature, min.-25 °C
Operating temperature, max.55 °C
E3FBRP21OMI — Mechanical
ParameterValue
Length48 mm

Product details

The Omron E3FBRP21OMI is a retro-reflective photoelectric sensor from the E3FB series. It emits a red LED beam and detects objects that break the path to a reflector, giving a 4 m sensing range. The PNP output switches up to 100 mA, and the response time is 500 μs, fast enough for most conveyor and packaging applications. The M12 4-pin connector mates to standard cordsets, and the IP67/IP69K ratings mean it handles washdown environments without a secondary housing.

Operates on 10–30 VDC. Selectable Light-ON or Dark-ON switching. M12 4-pin connector; 48 mm length.

Frequently asked questions

What is the listed length of the E3FBRP21OMI?

The housing length is 48 mm.

What series does the E3FBRP21OMI belong to?

It is part of the Omron E3FB series.

Will E3FBRP21OMI drop into a panel that was specified around E3FBDP21OMI without rewiring?

Yes, the mechanical footprint and M12 connector are identical, so no rewiring is needed. However, the sensing method changes: the E3FBRP21OMI is retro-reflective (requires a reflector) with a 4 m range, while the E3FBDP21OMI is diffuse reflective with a 100 mm range. Adjust mounting and target accordingly.

What is the closest functional alternative within the same series?

The E3FBDP21OMI is a same-series sibling but it is a diffuse reflective sensor with a 100 mm sensing distance, not retro-reflective. Both are PNP with M12 connector, but they serve different application ranges.

MPN
E3FBRP21OMI