M12 Inductive Proximity Sensor, 8mm Detection, NPN Output, Shielded, DC 3-Wire

Omron E2B-M12KN08-WZ-C2 Industrial Proximity Sensor - Comprehensive Product Overview

The Omron E2B-M12KN08-WZ-C2 represents the pinnacle of industrial sensing technology, offering unmatched reliability in metallic object detection for automation systems worldwide. This cylindrical inductive proximity sensor from Omron's premium E2B series combines advanced electromagnetic field technology with rugged construction to deliver consistent, maintenance-free operation in the most demanding manufacturing environments. Engineered specifically for industrial automation applications, the sensor provides precise non-contact detection of both ferrous and non-ferrous metals with an 8mm standardized sensing distance, eliminating mechanical wear while ensuring long-term operational reliability.

Key Features and Technical Advantages

• Precision Sensing Performance: 8 mm (±10%) standardized sensing distance (Sn) according to IEC 60947-5-2 specifications, with ≤3% repeatability variance for consistent detection accuracy of steel targets (12×12×1mm)
• Industrial-Grade Construction: Heavy-duty nickel-plated brass housing (electroless nickel plating ≥15μm) provides exceptional resistance to corrosion, mechanical impacts, cutting fluids, and industrial chemicals
• Advanced Output Configuration: NPN normally open (NO) transistor output with ≤2.5V voltage drop at 100mA load current, compatible with PLCs and industrial control systems from all major manufacturers
• Wide Operating Voltage: 10-30 VDC (±10%) power supply range with reverse polarity protection, accommodating both 12V and 24V industrial control systems
• Energy Efficient Operation: Low current consumption (≤13mA at 24VDC) reduces overall system power requirements while maintaining excellent noise immunity (1,500Vp-p noise resistance)
• Environmental Protection: IP67-rated enclosure (IEC 60529) ensures reliable operation when exposed to dust, oil, coolant splashes, or temporary immersion (up to 1m for 30 minutes)
• Extended Temperature Range: Certified operation from -25°C to +70°C (EN 60947-5-2) with storage capability from -30°C to +80°C for challenging industrial environments
• High-Speed Response: 500Hz switching frequency (0.5ms response time) enables detection of fast-moving targets on high-speed production lines
• Durable Cable Assembly: 2-meter 3-core PVC cable (0.18mm² conductor) with color-coded wiring (brown: +V, blue: 0V, black: output) and 30N pull-out resistance
• Omron Quality Assurance: Backed by Omron's standard 1-year manufacturer warranty against defects in materials and workmanship

Industrial Applications and Implementation Scenarios

The Omron E2B-M12KN08-WZ-C2 inductive proximity sensor is engineered for precision detection across multiple industrial automation sectors:

• Automated Manufacturing: Position verification of metal components in CNC machining centers, stamping presses, and robotic welding cells
• Material Handling Systems: Detection of metal pallets, containers, and product carriers in AS/RS and conveyor networks
• Packaging Automation: Metal can/cap detection in filling lines and presence verification in case packing systems
• Automotive Production: Engine component positioning, chassis assembly verification, and robotic tooling confirmation
• Metalworking: Tool breakage detection, workpiece positioning, and end-of-stroke confirmation in presses and forming machines
• Food Processing Equipment: Stainless steel container detection in hygienic production environments (sensor meets FDA compliance for incidental contact)
• Electronics Manufacturing: Precision placement verification of metal components in SMT and PCB assembly systems

Complete Technical Specifications

Parameter	Detailed Specification
Manufacturer Part Number	E2B-M12KN08-WZ-C2 (Omron factory designation)
Sensing Principle	High-frequency oscillation type (electromagnetic field) with built-in temperature compensation
Target Materials	Ferrous metals (mild steel, stainless steel) and non-ferrous metals (aluminum, brass, copper) with reduction factors applied (1.0 for steel, 0.45 for stainless steel, 0.4 for brass, 0.3 for aluminum)
Standardized Sensing Distance	8 mm (for standard iron target 12×12×1mm per IEC 60947-5-2)
Effective Sensing Range	0-6.4 mm (80% of Sn) with hysteresis ≤15% of sensing distance
Output Configuration	3-wire NPN NO (normally open) with short-circuit and reverse polarity protection
Electrical Connections	2m PVC cable (brown: +V, blue: 0V, black: output), UL/CSA approved
Supply Voltage Range	10-30 VDC (±10%) with ≤10% ripple voltage
Current Consumption	≤13 mA (typical at 24 VDC, including load current)
Residual Voltage	≤2.5 V at 100 mA load current (transistor saturation voltage)
Switching Frequency	500 Hz maximum (0.5 ms response time for both on/off states)
Housing Material	Nickel-plated brass (CuZn39Pb3) with ≥15μm nickel coating thickness
Mechanical Dimensions	Ø12 mm × 40 mm body length (excluding cable), M12×1 threaded barrel
Mounting	Flush or non-flush mounting capability with recommended 2×Sn clearance from adjacent metal
Environmental Protection	IP67 per IEC 60529 (dust tight and protected against temporary immersion up to 1m)
Operating Temperature	-25°C to +70°C (functional), -30°C to +80°C (storage)
Mechanical Durability	Shock resistance: 1,000 m/s² (≈100G) per IEC 60068-2-27, vibration resistance: 10-55Hz at 1.5mm amplitude per IEC 60068-2-6
Compliance Standards	CE, UL, CSA, RoHS compliant; meets EN 60947-5-2, IEC 60947-5-2
Warranty Coverage	1-year limited warranty from date of purchase (Omron standard terms apply)

Installation Guidelines and Operational Recommendations

For optimal performance of the Omron E2B-M12KN08-WZ-C2 proximity sensor, install with the sensing face parallel to the target surface. Maintain a minimum clearance of 16mm (2×Sn) from surrounding metal objects when flush mounting. The nickel-plated brass housing permits installation in environments with exposure to cutting fluids, coolants, or mild chemical vapors. When detecting non-ferrous metals, apply appropriate reduction factors (0.3-0.45) to the effective sensing distance. The 2-meter PVC cable (rated for 30V 0.3A) provides sufficient length for most industrial installations while maintaining flexibility in cable routing. For fixed installations, use cable glands or strain relief to prevent mechanical stress on the cable entry point.