Retro-reflective photoelectric sensor switch

Retro-reflective photoelectric sensor switch is an industrial optical sensor designed to detect objects by bouncing an infrared or visible light beam off a matching reflector plate.

Key Technical Specifications

• Operating Voltage: 12 to 24V DC or wide-range 24–240V AC/DC (depending on the specific sub-model variant).
• Sensing Range: Typically, up to 4 metres when used with a standard target reflector.
• Output Configuration: Single Pole Double Throw (SPDT) dry contact internal relay output.
• Switching Capacity: Built-in mechanical relay rated up to 3A at 250V AC.

Control and Indicators

• Sensitivity Dial (SENS): An integrated adjustment potentiometer used to increase or decrease the optical detection distance threshold.
• LED Status Indicator: On-board light indicator that illuminates to provide a visual cue when an object enters the detection beam or breaks the alignment.
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Wire Colour Functions (Standard Pinout)

The sensor uses a 5-wire layout split into dedicated power supply lines and dry relay contacts:

Power Lines:

• Red (RE) / Brown: V+ Power Input.
• Black (BK) / Blue: V- Power Input / Neutral.