Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
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Omron
E3FC-BN21
Omron E3FC-BN21 E3FC
The Omron E3FC-BN21 is a cylindrical axial coaxial retro-reflective sensor featuring an M18 stainless steel housing with a length of 48 mm and an IP67/IP69K degree of protection. Operating on a 10-30 V power supply, this component utilizes a polarity-free red light to provide a sensing distance of 100 mm to 500 mm with a 0.5 ms response time, manual adjustment, an M12 connector, and an NPN output supporting both Dark-ON and Light-ON operation modes alongside transparent detection and P-opaquing functions. Submit the exact part number, quantity, and application requirements for a quote.
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Request a QuoteWhy no listed price?
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Omron references — within one business day.
- Manufacturer
- Omron
- Part number
- E3FC-BN21
- Product series
- E3FC
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to E3FC-BN21.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Product Family
- E3FC
- Shape
- Cylindrical axial
- Sensing method
- Coaxial retro-reflective
- Sensing distance
- 500 mm
- Sensing distance (min.)
- 100 mm
- Setting method
- Manual adjustment
- Connection method
- Connector M12
- Output type
- NPN
- Operation mode
- Dark-ON, Light-ON
- Response time
- 0.5 ms
- Material housing
- Stainless steel
- Thread size
- M18
- Product Length (unpacked)
- 48 mm
- Type of light
- Polarity free red light
- Power supply voltage
- 10-30 V
- Features
- P-opaquing function, Transparent detection
- Degree of protection (IP)
- IP67/IP69K
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Omron E3FC-BN21. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.