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E3T-SR43 Safety Light Curtain | F3SJ Series Industrial Safety Sensor

The Omron E3T-SR43 is a miniature retro-reflective photoelectric sensor with built-in amplifier, designed for ultra-compact installation in industrial automation systems where space is limited.

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Technical Specifications Parameter Specification Model Number E3T-SR43 Manufacturer Omron Series E3T Product Type Photoelectric Sensor Sensing Method Retro-reflective (no MSR function) Sensing Distance 30–200 mm (with E39-R4 reflector) / 10–100 mm (with E39-R37-CA) Standard Detectable Object Opaque object ≥ Ø27 mm Minimum Detectable Object Ø2 mm (at 100 mm distance) Light Source Red LED (650 nm) Output Type PNP open collector Output Mode Light-ON Supply Voltage 12–24 VDC ±10% Current Consumption ≤ 20 mA Control Output 26.4 VDC max, 50 mA max Residual Voltage ≤ 1 V (≤10 mA load), ≤ 2 V (10–50 mA load) Response Time ≤ 1 ms Connection Type Pre-wired cable (2 m or 5 m variants) Mounting Type M2 screw mounting Protection Rating IP67 Housing Material PBT (polybutylene terephthalate) Lens Material Methacrylate resin Indicator Orange operation LED, Green stability LED Operating Temperature -25°C to +55°C Storage Temperature -40°C to +70°C Humidity Range 35%–85% RH (non-condensing) Insulation Resistance ≥ 20 MΩ (500 VDC) Dielectric Strength 1000 VAC for 1 minute Vibration Resistance 10–2000 Hz, 1.5 mm amplitude Shock Resistance 1000 m/s²