Photo Sensor 3m Sensing Distance, Relay Output - BX3M-PFR-T

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500.00 Grams


Autonics Universal AC/DC Photoelectric Sensor, BX3M-PFR-T

Relay contact output, Terminal block type connection, Retroreflective

The Autonics photoelectric sensor BX3M-PFR-T is Polarized retroreflective sensing type, comes in a rectangular shape, sensing distance of 3m, Response time of Max. 20ms and rectangular installation. The standard rectangular photo sensor can be used in diverse applications requiring non-contact detection of Opaque material.

As a quick report, this photoelectric sensor provides:

  • Retroreflective (built-in polarizing filter) sensing type
  • 3m sensing distance
  • Opaque material of min. Ø60mm sensing target
  • Red LED (660nm) Light source
  • 24-240 VAC ~ ±10% 50/60 Hz, 24-240 VDC ±10% (ripple P-P: max. 10%) power supply
  • Relay contact output
  • Operation mode: Light ON/Dark ON (set by switch)
  • Sensitivity adjuster
  • IP65 ingress protection structure according to IEC standards
  • Terminal type connection
  • Max. 3VA Current consumption


This Autonics photoelectric sensor's case and lens cover is made of Polycarbonate, its Sensing part is Acrylic made.

The BX3M-PFR-T features IP65 ingress protection.


The Autonics sensor BX3M-PFR-T features terminal block connection.

Sensing specifications

The sensing target for this photoelectric sensor is Opaque material of min. Ø60mm. The maximum distance that this sensor can detect its standard sensing target is 3m. This so-called sensing distance differs from one sensing target to another, based on their material.

Control output

The BX3M-PFR-T features Relay contact output control output


There are limitations in temperature and humidity in which BX3M-PFR-T photoelectric sensor is used:

  • Storage temperature: -25 … 70°C
  • Storage humidity: 35 to 85%RH
  • Ambient temperature: -20 … 55°C
  • Ambient humidity: 35 to 85%RH

Environment resistance is rated at no freezing or condensation.

Industries / Applications

  • Parking Tower Entry/Exit


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

Series Information

BX Series

Universal AC/DC Photoelectric Sensors (Wire Terminal Type)

The Autonics BX series photoelectric sensors with built-in amplifiers are available in universal AC/DC types and DC types. The terminal type sensors also feature timer function to change between ON delay, OFF delay, and One-shot delay. Light ON/Dark ON operation mode switch and sensitivity adjusters are also available for easy configuration and set up. The universal AC/DC types feature a wide power supply range of 24-240 VAC / 24-240 VDC.

BX Series Main features:

  • Universal AC/DC models (relay contact output) available
  • Output types: relay contact (AC/DC type), NPN/PNP open collector (DC type)
  • Sensitivity adjuster
  • Timer function (built-in timer models): ON delay, OFF delay, One-shot delay
  • Self-diagnosis function (green LED ON indicates stable operation)
  • Built-in reverse polarity protection circuit, output short-circuit (overcurrent) protection circuit
  • IP65 protection structure (IEC standard)

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 BX3M-PFR-T datasheet.
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Warranty Information

One Year Warranty
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Additional Information

Sensing type:
Retroreflective type(built-in polarizing filter)
Sensing distance:
Sensing target:
Opaque material of min. Ø60mm
Light source:
Red LED(660nm)
Response time:
Max. 20ms
Power supply:
24-240VAC~ ±10% 50/60Hz, 24-240VDC ±10%(ripple P-P: max. 10%)
Current consumption:
Max. 3VA
Sensitivity adjustment:
Sensitivity adjuster
Operation mode:
Light ON/Dark ON(set by switch)
Control output:
Timer function:
Timer Function
Connection type:
Terminal block type
Environment_Ambient illumination:
Sunlight: Max. 11,000lx, Incandescent lamp: Max. 3,000lx (received illumination)
Environment_Ambient temperature:
-20 to 55℃, storage: -25 to 70℃
Protection structure:
IP66 Approval
Environment_Ambient humidity:
35 to 85% RH, storage: 35 to 85% RH
Case, Lens cover: Polycarbonate, Sensing part: Acrylic, Bracket: Steel plate cold commercial,
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