Omron E3FA-RP21 | Retro-Reflective Sensor

Omron E3FA-RP21 | Compact Retro-Reflective Sensor for General Industrial Use

Overview

The Omron E3FA-RP21 is a retro-reflective photoelectric sensor offering a sensing distance of up to 4 meters with a PNP transistor output, ideal for detecting objects in standard industrial environments. With a compact cylindrical design and a 10–30 VDC power supply, it's easy to install in space-constrained applications.

Key Features

• Sensing Method: Retro-reflective (requires reflector)

• Sensing Distance: Up to 4 meters with E39-R1 reflector

• Output Type: PNP (Light ON/Dark ON selectable)

• Power Supply: 10–30 VDC

• Housing Shape: Cylindrical M18 body

• LED Indicators: Power and operation status

• High EMC Resistance: Stable performance in noisy environments

• Compact and Lightweight: Easy to mount in tight spaces

• Enclosure Rating: IP67 for moisture and dust protection

Technical Specifications

• Model: E3FA-RP21

• Sensing Distance: 4 m (with E39-R1 reflector)

• Light Source: Red LED

• Output Type: PNP open collector

• Power Supply: 10–30 VDC

• Current Consumption: ≤ 30 mA

• Response Time: ≤ 1 ms

• Enclosure Rating: IP67

• Ambient Operating Temperature: –25°C to +55°C

• Housing Material: PBT plastic

• Lens Material: PMMA

• Mounting: M18 threaded or bracket mount

• Dimensions: Ø18 × 34 mm (approx.)

• Weight: Approx. 50 g

Applications

• Packaging Machines

• Automated Lines

• Material Handling Systems

• Small Part Detection

• Conveyor Object Sensing

Why Choose Omron E3FA-RP21?

• Compact and cylindrical design fits most setups

• Stable detection with 4 m range using reflector

• Quick installation with M18 threaded mounting

• IP67-rated durability for demanding industrial environments

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply