The E3JK-R4M1 Photoelectric Sensor is a reliable industrial infrared sensor designed for non-contact object detection in automation and control systems. Using a retro-reflective (mirror feedback) sensing method, the sensor transmits an infrared beam that reflects from a dedicated reflector back to the receiver. When an object interrupts the beam, the sensor triggers its output signal.

With a sensing distance of up to 4 meters, relay output capability, and a robust industrial housing, this sensor is ideal for conveyor systems, packaging machines, industrial automation, and safety detection systems.

Features

• Retro-reflective infrared photoelectric sensor
• Detection range up to 4 meters
• Integrated transmitter and receiver in one housing
• Includes reflector panel for mirror feedback operation
• Relay output (SPDT) for direct control of loads
• Adjustable sensitivity for precise detection
• Light-ON / Dark-ON operation modes
• LED indicator for detection status
• Industrial IP65 protection rating
• Durable ABS housing for harsh environments

Specifications

• Model: E3JK-R4M1
• Sensor Type: Retro-reflective photoelectric sensor
• Detection Distance: 0 – 4 m
• Light Source: Red LED (~660 nm)
• Operating Voltage: 12 – 24 VDC (some versions support wider AC/DC ranges)
• Output Type: Relay SPDT
• Max Load Current: 3 A (250VAC / 240VDC)
• Response Time: ≤ 30 ms
• Directional Angle:
  • Sensor: 1–5°
  • Reflector: ≥ 40°
• Protection Rating: IP65
• Operating Temperature: –25°C to +55°C
• Cable Length: ~1.2 m
• Dimensions: Approx. 50 × 50 × 20 mm
• Included Accessories: Reflector plate and mounting bracket

Applications

• Conveyor belt object detection
• Automatic packaging machines
• Industrial automation systems
• Safety detection for gates and doors
• Position detection in manufacturing lines
• Counting systems in production lines
• Warehouse and logistics automation