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.
Global industrial sourcing · Houston, Texas info@mropartsrfq.com
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Omron
E3RA-TN21
Omron E3RA-TN21 E3FA-E3FB
The Omron E3RA-TN21 is a cylindrical radial through-beam photoelectric sensor belonging to the E3FA-E3FB product family, featuring a 15000 mm sensing distance and polarity-free red light. Constructed with an M18 thread size and an ABS housing rated to IP67/IP69K, this unit operates on a 10-30 V power supply voltage and utilizes an M12 connector. It incorporates manual adjustment, an NPN output type with selectable Dark-ON or Light-ON operation modes, and a 0.5 ms response time. Submit the exact part number, quantity, and application requirements to request a quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
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
- E3RA-TN21
- Product series
- E3FA-E3FB
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to E3RA-TN21.
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
- E3FA-E3FB
- Shape
- Cylindrical radial
- Sensing method
- Through-beam
- Sensing distance
- 15000 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
- ABS
- Thread size
- M18
- Type of light
- Polarity free red light
- Power supply voltage
- 10-30 V
- 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 E3RA-TN21. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.