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E3FB-RP21

Omron E3FB-RP21 Retro-Reflective Photoelectric Sensor Stainless Steel

SKU: E3FB-RP21

USD 27.00

Omron E3FB-RP21 is a retro-reflective photoelectric sensor with stainless steel housing for harsh environment detection.

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Product Overview

The E3FB-RP21 is designed for stable object presence detection in conveyors, packaging stations, and material handling systems. Its 4m class range supports flexible mounting in medium-span machine zones. High ingress protection and connectorized installation make it practical for harsh environments and maintenance-friendly replacement workflows.

  • SKU: E3FB-RP21
  • Series: E3FB
  • Voltage: 24V

Best-Fit Applications

  • Detecting products on medium-length conveyor zones
  • Triggering process steps at transfer points
  • Monitoring object flow in packaging cells
  • Replacing short-range sensors where more distance is required
  • Standardizing rugged sensor hardware in OEM lines
  • Improving detection uptime in washdown-affected areas

Buying Checklist

  • Mid-range capability expands installation flexibility
  • Rugged protection improves field reliability
  • M12 interface reduces maintenance downtime
  • Strong fit for repetitive industrial detection tasks
  • Practical standard component for harsh environments

Technical Specifications

Model E3FB-RP21
Series E3FB
Type Retro-Reflective Photoelectric Sensor
Sensing Range Up to 3m
Output Type NPN
Supply Voltage DC12-24V
Response Time 1ms
Light Source Red LED
Protection IP67/IP69K
Material Stainless steel (316L)
Operating Temperature -25 to +55°C

FAQ for E3FB-RP21

What's the sensing range?
Up to 3m with standard reflector. Use larger reflector for longer range.
What reflector should I use?
E39-R series reflectors. For 3m range: E39-R4 (large). For shorter range: E39-R1 (standard).
Can this sensor detect transparent objects?
Standard retro-reflective: no. For transparent objects, use MSR (Mirror Set-up Recognition) model.
Can this sensor be used in food processing?
Yes, stainless steel housing, IP69K rating suitable for food processing.

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