Photo Sensor 300mm Sensing Distance, Relay Contact Output - BEN300-DFR

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195.00 Grams


Autonics Universal AC/DC Photoelectric Sensor - BEN300-DFR

Cable type connection, Sensitivity adjuster, Diffuse reflective


The Autonics photoelectric sensor BEN300-DFR with built-in IC photo diode can sense objects without the ambient light and electrical noise affecting the process. This sensor which is diffuse reflective, comes in a rectangular shape, sensing distance of 300mm and Rectangular installation. The standard rectangular photo sensor can be used in diverse applications requiring non-contact detection of Opaque, translucent material.

As a quick report, this photoelectric sensor provides:

  • 300mm sensing distance
  • AC/DC power, relay conctact output
  • Infrared LED (940nm) Light source
  • Small and power supply built-in type.
  • Easy installation with indicators on product.
  • Light ON/Dark ON mode selectable by switch.
  • IP50 ingress protection structure according to IEC standards
  • Status and output indication.
  • Built-in IC photo diode for disturbing light and electrical noise.
  • ≤ 20 m Response time
  • Reverse power protection circuit, output short overcurrent protection circuit


This Autonics photoelectric sensor's case and case cover are made of heat resistant ABS, its sensing part is made of PC.

The BEN300-DFR features IP50 ingress protection.


The Autonics sensor BEN300-DFR features standard cable type connection. This cable covers the sensors 5 wires is 5 mm in diameter and 2 meters in length.

Sensing specifications

The sensing target for this photoelectric sensor is Opaque, translucent material. The maximum distance that this sensor can detect its standard sensing target is from 300 mm.

Control output

The BEN300-DFR features AC/DC power, relay conctact output.


There are limitations in temperature and humidity in which BEN300-DFR photoelectric sensor is used:

  • Storage temperature: -20 … 70°C
  • Storage humidity: 35 to 85%RH
  • Ambient temperature: -20 … 65°C
  • Ambient humidity: 35 to 85%RH

Environment resistance is rated at no freezing or condensation.

Industries / applications

  • Automated Automotive Manufacturing Process
  • Application example of automation system: elevator, escalator, and parking system, …
  • Parking Tower Entry/Exit


Still want to know more? Click here to find out about Autonics Photoelectric Sensors working principles.

Series Information

BEN Series

Universal AC/DC Photoelectric Sensors

The Autonics BEN series photoelectric sensors with built-in amplifiers are available in universal AC/DC types and DC types. Light ON/Dark ON operation mode switch and sensitivity adjusters are available for easy configuration and set up (except through-beam types). The specialized sensor IC provides high performance in various user applications.

BEN Series Main features

  • Universal AC/DC models (relay contact output) available
  • Light ON/Dark ON operation mode switch
  • Sensitivity adjuster (except through-beam types)
  • Stability indicator (green LED) and operation indicator (red LED)
  • Specialized, high-performance sensor IC
  • Output types: relay contact (AC/DC type), NPN/PNP open collector (DC type)

About Autonics Photoelectric Sensors

"Autonics" is a leading provider of automation solutions from South Korea. Autonics products are trusted and adopted by engineers in various industrial applications and their technology is widely applied in day-to-day automation devices. This company represents 21 Photoelectric Sensors series:

  • BRQ Series: Cylindrical Photoelectric Sensors
  • BJ SeriesCompact High Performance Photoelectric Sensors
  • BJX Series: Compact Long Distance Photoelectric Sensors
  • BR(NARROW BEAM REFLECTIVE) Series: Cylindrical Photoelectric Sensors (Narrow Beam Reflective Type)
  • BTF Series: Ultra-Compact, Thin Type Photoelectric Sensors
  • BTS Series: Ultra-Compact, Slim Type Photoelectric Sensors
  • BL Series: Liquid Level Photoelectric Sensors
  • BJR Series: Oil-Resistant/Oil-Proof Photoelectric Sensors
  • BYD Series: Compact Photoelectric Sensors
  • BM Series: Economical General-Purpose Photoelectric Sensors
  • BH Series: Front/Side Mount Photoelectric Sensors
  • BJP Series: Photoelectric Sensors for PCB Detection
  • BUM Series: 4-Channel U-Shaped Photoelectric Sensors
  • BA Series: Diffuse Reflective Photoelectric Sensors with Long Sensing Distance
  • BMS Series: Side Sensing Type Photoelectric Sensors
  • BX Series: Universal AC/DC Photoelectric Sensors (Wire Terminal Type)
  • BUP Series: U-Shaped Photoelectric Sensors
  • BEN Series: Universal AC/DC Photoelectric Sensors
  • BPS Series: Flat Type Photoelectric Sensors
  • BY Series: Compact Photoelectric Sensors with Synchronous Detection
  • BC Series: Color Mark Sensors

Autonics Photoelectric Sensors are mainly used in:

  • Automotive industry
  • Packaging industry
  • Elevator Industry
  • Semiconductor/Display Industry
  • Machine Tools Industry
  • Plastics/Rubber Industry
  • Food/beverage Manufacturing
  • Logistics Industry


You may be interested to see this product's catalog. If so, please click to view the BEN300-DFR datasheet.
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Warranty Information

One Year Warranty
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Additional Information

Sensing type:
Diffuse reflective type
Sensing distance:
Sensing target:
Opaque, Translucent material
Light source:
Infrared LED(940nm)
Response time:
Max. 20ms
Power supply:
24-240VAC~ ±10% 50/60Hz, 24-240VDC ±10%(ripple P-P: max. 10%)
Operation mode:
Light ON/Dark ON(set by switch)
Control output:
AC/DC power, relay conctact output
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