The Leuze ISS 112MM/4NO-8N0-M12 (Part Number: 50136020) is an extended-range non-contact inductive proximity switch belonging to Leuze electronic's standardized Series 112 (Germany). Built with an M12 cylindrical nickel-plated brass body and offering an extended scanning range of 8 mm, this sensor delivers outstanding precision, mechanical durability, and impact-resistant clearance for industrial machine automation lines.

KEY PRODUCT FEATURES AND OPERATIONAL ADVANTAGES:
1. Extended 8 mm Operating Range (Long Sensing Distance):
Compared to standard M12 sensors that typically offer only 2 mm to 4 mm, the ISS 112MM/4NO-8N0 provides a nominal sensing distance Sn of 8 mm (assured operating range Sa: 0 to 6.4 mm). This increased standoff distance allows installation safely away from moving mechanical parts, preventing physical collision and sensing face damage.
2. Non-Embedded / Non-Flush Mounting Design:
The omnidirectional electromagnetic field pattern enables rapid and sensitive detection of metallic targets entering from lateral angles or off-center trajectories.
3. High Switching Frequency 2,000 Hz (2 kHz) & Instant Response:
Operating at a fast switching rate of 2,000 operations per second, it is ideally suited for high-speed gear tooth counting, camshaft rotation monitoring, conveyor parts indexing, and high-frequency pulse generation without missing counts.
4. Nickel-Plated Brass Shell with PBT Sensing Face:
The precision-machined M12x1 mm threaded barrel is crafted from rugged nickel-plated brass paired with a wear- and chemical-resistant Polybutylene (PBT) sensing cap. Rated IP67 for water and dust ingress protection, it operates reliably across -25 °C to +70 °C.
5. Standard Industrial M12 4-Pin Connector (-M12):
Features an integrated 4-pin M12 male connector (A-coded) at the rear, allowing rapid, error-free plug-and-play wiring, eliminating internal wire stress and minimizing machine downtime during routine maintenance.
6. Comprehensive Protective Electronics & Yellow Status LED:
Equipped with built-in output short-circuit protection, reverse power polarity protection, and inductive transient suppression. A bright yellow status LED at the rear delivers clear visual confirmation of switching output states during alignment and diagnostics.

TYPICAL INDUSTRIAL APPLICATIONS:
• CNC Machine Tools & Precision Mechanics: Axis travel limit sensing, chuck indexing, and metallic workpiece position confirmation.
• Automated Conveyor & Packaging Lines: Aluminum can counting, metallic bottle cap sensing, and high-speed component carrier tracking.
• Automotive Manufacturing & Robotic Welding: Fixture clamping verification, robot arm end-position sensing, and chassis alignment on assembly lines.
• Stamping Presses & Plastic Injection Molding: Die open/close limit monitoring and pneumatic/hydraulic cylinder stroke tracking.

• Manufacturer: Leuze electronic
• Part Number / Model: ISS 112MM/4NO-8N0-M12
• Order Number (Part no.): 50136020
• Series: Series 112 (Standard Cylindrical M12)
• Brand Origin: Germany
• Sensor Type: Inductive proximity switch
• Housing Design: Cylindrical threaded
• Dimensions (Diameter x Length): Ø 12 mm x 55 mm
• Thread Size: M12 x 1 mm
• Installation Type: Non-embedded / Non-flush
• Nominal Operating Range Limit (Sn): 8 mm
• Assured Operating Range (Sa): 0 ... 6.4 mm
• Standard Target Plate: 24 x 24 mm², Fe360 steel
• Material Correction Factors:
  - Fe360 Steel: 1.0
  - Stainless Steel: 0.7
  - Brass: 0.5
  - Aluminum: 0.4
  - Copper: 0.4
• Switching Hysteresis: 10 %
• Repeatability: Max. 5 % (at Ta = 23 °C ± 5 °C)
• Temperature Drift: Max. 10 % (over entire operating span)
• Max. Switching Frequency: 2,000 Hz (2 kHz)
• Readiness Delay: 60 ms
• Supply Voltage (UB): 10 ... 30 V DC (Residual ripple 0 ... 20%)
• Open-Circuit Current: 0 ... 10 mA
• Digital Switching Outputs: 1 output
• Switching Element: Transistor PNP
• Switching Principle: NO (Normally Open)
• Max. Switching Current: 200 mA
• Voltage Drop: ≤ 2 V DC
• Residual Current: Max. 0.1 mA
• Protective Circuitry: Polarity reversal protection, short-circuit protection, inductive kickback protection
• Status Indicator: 1 yellow LED indicating switching output state
• Connection Type: Integrated M12 connector, 4-pin male (A-coded)
• Housing Material: Nickel-plated brass
• Sensing Face Material: Polybutylene terephthalate (PBT)
• Housing Colors: Silver / Red RAL 3000
• Net Weight: 26 g
• Degree of Protection: IP 67 (Water and dust tight)
• Protection Class: Class II
• Reliability (MTTF): 900 years
• Ambient Operating Temperature: -25 °C ... +70 °C
• Storage Temperature: -25 °C ... +70 °C
• EMC Standards: IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4
• Product Standards & Approvals: IEC 60947-5-2, cULus Listed