Omron E3FA-RP21

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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

Brand-New, Authentic, Factory-Sealed Components At PLCVERSE, every item we offer is guaranteed to be brand-new, original, and delivered in its factory-sealed packaging. Our parts are sourced with strict quality control to ensure you receive genuine automation components that meet top industry reliability and performance standards.

1-Year Warranty Coverage Every new product purchased from PLCVERSE includes a full 1-year warranty. We stand behind the quality and durability of our automation components, providing protection against manufacturing defects under normal use. Our commitment is to ensure you receive dependable, high-performance parts with complete peace of mind.

PLCVERSE is an independent seller of industrial automation equipment. We are not an authorized distributor, partner, or representative of any of the manufacturers featured on this website. All brand names, trademarks, and logos remain the property of their respective owners. PLCVERSE has no association or endorsement from ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other brands mentioned.