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Omron E3JK-RR12-C Retro-Reflective Photoelectric Sensor 4m Relay AC/DC NPN/PNP — front view

Omron E3JK-RR12-C Retro-Reflective Photoelectric Sensor 4m Relay AC/DC NPN/PNP

SKU: E3JK-RR12-C

USD 16.00

Omron E3JK-RR12-C is a retro-reflective photoelectric sensor with 4m range, relay output with NPN/PNP selectable, AC/DC free voltage.

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Product Overview

The E3JK-RR12-C provides reliable object presence detection using reflector-based optical sensing. It is commonly selected for conveyor detection, package flow monitoring, and part transfer stations where easy alignment and durable operation matter.

Retro-Reflective Detection Principle

The sensor emits light toward a reflector and monitors returned signal changes when an object interrupts the beam path. This method offers practical setup for many line-of-sight detection tasks.

Rugged Daily-Use Performance

Its industrial body and sealed construction support deployment in packaging, assembly, and material handling equipment where dust and vibration are routine.

Simple Integration with PLC Inputs

Output wiring is designed for standard digital input architectures, enabling fast replacement and predictable commissioning in control panels.

Key Features

  • Sensing Range: 0.1-4m
  • Output Type: Relay + NPN/PNP
  • Supply Voltage: AC/DC 24-240V
  • Response Time: 20ms
  • Light Source: Red LED
  • Cable Length: 2m
  • SKU: E3JK-RR12-C
  • Series: E3JK
  • Voltage: 24-240V

Best-Fit Applications

  • Triggers machine sequence when product arrives
  • Detects gaps between moving objects
  • Improves repeatability versus mechanical flags
  • Supports non-contact monitoring in dusty zones
  • Enables faster cycles with stable sensing
  • Reduces maintenance from contact wear devices

Buying Checklist

  • Flexible retro-reflective sensing for many setups
  • Industrial durability for continuous operation
  • Easy PLC integration and replacement workflow
  • Good fit for conveyor and packaging tasks
  • Omron sensor ecosystem compatibility

Technical Specifications

Model E3JK-RR12-C
Series E3JK
Sensing Range 0.1-4m
Output Type Relay + NPN/PNP
Supply Voltage AC/DC 24-240V
Response Time 20ms
Light Source Red LED
Cable Length 2m
Protection IP64
Relay Capacity 5A at 250VAC

FAQ for E3JK-RR12-C

Output configuration?
Relay output with NPN/PNP selectable for flexible integration.
Supply voltage?
AC/DC 24-240V free voltage.
Sensing range?
Up to 4m.
Relay capacity?
5A at 250VAC.

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