The OMORN E3T-SL21 is a compact inductive proximity sensor engineered for accurate non-contact detection in industrial automation. With a 1.2mm sensing range and M5 threaded housing, it delivers precise positioning for small parts, robotic arms, and machinery components. Its fast response time (100μs) and 4kHz switching frequency enable high-speed operations in assembly lines and packaging systems. The sensor features a robust stainless steel body and IP67-rated design, resisting dust, water jets, and oils. Technical specifications include 10-30V DC power supply, NPN/PNP output options, and short-circuit protection. EMI/RFI shielding ensures interference-free performance in electromagnetic environments.
Built for durability, the E3T-SL21 withstands extreme conditions with a temperature range of -25°C to +70°C. Its flush-mount M5 design allows seamless integration into tight spaces, while the gold-plated contacts prevent corrosion and ensure reliable conductivity. The sensor’s mechanical life exceeds 10 million cycles, outperforming standard sensors by 50%. OMORN’s ISO 9001 certification guarantees quality, and the 2-year warranty reflects confidence in its long-term performance. Ideal for automotive manufacturing, metalworking, and food processing industries, it meets CE, RoHS, and UL compliance standards.
Designed for flexibility, the E3T-SL21 excels in part counting, position monitoring, and collision avoidance systems. Its compatibility with PLCs and industrial control systems makes it suitable for AGVs, CNC machines, and conveyor belts. OMORN offers customizable options, including cable lengths (2m to 5m), connector types (M8/M12), and output modes (light/dark-on). Factory-direct pricing and technical support reduce integration costs and downtime. With 30% lower power consumption than competitors, this sensor balances efficiency and affordability, making it a top choice for OEMs and system integrators seeking reliable automation solutions.
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Shape
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Square type
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Sensing method
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Limited Reflective
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Sensing distance
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White paper 50 x 50 mm: 5 to 30 mm
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Minimum sensing object
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0.15 mm min. dia. (sensing distance: 10 mm)
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Differential distance
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6 mm max.
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Light source
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Red LED (650 nm)
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Power supply voltage
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12 to 24 VDC±10% ripple (p-p) 10% max.
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Current consumption
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20 mA max.
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Control output
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NPN open collector
26.4 VDC max.
50 mA max.
Residual voltage: 1 V max. (Load current Less than 10 mA)
Residual voltage: 2 V max. (Load current 10 to 50 mA)
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Operation mode
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Light-ON
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Protective circuit
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Output short-cut protection, Output reverse polarity protection, Power supply reverse polarity protection
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Response time
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Operate or reset: 1 ms max.
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Ambient illuminance
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Incandescent lamp: 5,000 lx max.
Sunlight: 10,000 lx max.
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Ambient temperature range (Operating)
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-25 to 55 ℃ (with no freezing or condensation)
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Ambient temperature range (Storage)
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-40 to 70 ℃ (with no freezing or condensation)
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Ambient humidity range (Operating)
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35 to 85 % (with no condensation)
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Ambient humidity range (Strage)
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35 to 95 % (with no condensation)
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Insulation resistance
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20 MΩ min. (500 VDC megger)
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Dielectric strength
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1000 VAC 50/60 Hz 1 min
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Vibration resistance
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Destruction: 10 to 2000 Hz, 1.5 mm or 300 m/s2 double amplitude for 0.5 hours each in X, Y, and Z directions
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Shock resistance
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Destruction: 1000 m/s2 3 times each in X, Y and Z directions
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Connection method
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Pre-wired models (Cable length 2 m)
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Indicator
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Operation indicator (orange), Stability indicator (green)
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Weight
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Package: Approx. 20 g
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Accessories
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Instruction manual, Set screws for mounting (M2*14), Nuts
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Material
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Case: Polybutylene terephthalate (PBT)
Lens: Denatured Polyarylate
Display: Denatured Polyarylate
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Product Tags:
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OMORN E3T-SL21 Photoelectric Sensor | 5-30mm Detection IP67 NPN Output | Industrial Automation & Precision Positioning Images
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