LEUZE LSS 46B-S12 THROUGH-BEAM PHOTOELECTRIC SENSOR TRANSMITTER (PART NUMBER: 50108526)

PRODUCT OVERVIEW
The Leuze LSS 46B-S12 (Order Part Number: 50108526) is a premium-tier through-beam photoelectric sensing component belonging to the high-performance 46B Series ecosystem engineered by the automation pioneer Leuze electronic (Germany). This specialized device functions exclusively as the light transmitter (Transmitter - TX) within a through-beam photoelectric configuration. Departing from conventional diffuse or retro-reflective sensors that incorporate the optical path inside a single housing, a through-beam array separates the optical cycle into two independent units facing each other: the LSS 46B-S12 transmitter continuously projects a highly stable light beam across the physical gap, while a corresponding matching receiver unit (such as the LSER 46B/66-S12 or other 46B Series receiver variants) captures the signal. Due to this physical separation design, the LSS 46B-S12 delivers extraordinary operational reliability, completely neutralizing measurement errors caused by object color variations or irregular material properties, providing an ideal sensing solution for heavy-duty automation over ultra-wide distances.

DIRECT THROUGH-BEAM PRINCIPLE & MATERIAL-INDEPENDENT TRACKING
The sensor system operates strictly on the direct through-beam principle. Once supplied with standard 10-30 VDC electrical power, the LSS 46B-S12 transmitter continuously emits a visible red LED beam modulated at a wavelength of 620 nm in a pulsed light pattern aimed directly at the receiver lens window.
- Under normal, clear, and unobstructed conditions, the receiver continuously registers the full amplitude of the light energy, maintaining a steady logical system state.
- The precise moment any target object passes through the optical path and blocks the direct beam, the light transmission cycle is broken. The receiver instantly detects this beam interruption and triggers its digital ON/OFF control output to notify the master PLC.
Because the light beam travels directly from the emitter array straight to the receiver without relying on target surface remission or reflectivity, the system achieves absolute tracking stability regardless of target color, transparency, glossiness, or substrate profile. It seamlessly tracks challenging targets like matte black tires, dark sand-blasted casting housings, dark grey transport boxes, or highly irregular packaging shapes.

BREAKTHROUGH SMALL LIGHT SPOT (S) TECHNOLOGY & MASSIVE 50M SENSING DISTANCE
- Small Light Spot Technology (Suffix "S"): The light profile projected from the LSS 46B-S12 is converged through a specialized internal optical lens array into a highly concentrated, sharp rectangular beam spot that resists fading, blurriness, or geometric distortion over distance. This crisp boundary line allows field maintenance crews to complete visual target alignment effortlessly with the naked eye during initial physical setup. Furthermore, it empowers the system to profile ultra-small objects or configure tight limiting margins requiring millimetric tracking tolerances.
- Industrial Ultra-Wide Range Capacity: Securely delivers a guaranteed operational tracking distance spanning from 0 meters up to 50 meters, with a typical maximum sensing limit reaching 60 meters. This high performance index makes it perfect for deployment at opposite ends of massive linear conveyor routes, master gate controls of automated multi-tier warehouses, and outdoor automated vehicle checkpoints.

ELECTRICAL TRANSMITTER PRINCIPLE & STANDARD M12 INTERFACE
Because the LSS 46B-S12 serves as a pure transmitter component, it does not incorporate digital switching transistor output channels (no NPN/PNP output leads are present inside the shell). The device requires simple positive and negative power supply rails to energize its internal pulsed LED cluster; all control logic and data wiring are processed at the matching receiver end. The underlying hardware possesses a synchronized 500 Hz frequency response and a rapid system initialization startup delay of 300 ms, ensuring the optical path is operational the moment the production line powers up. The electrical interface utilizes an industrial standard M12 male connector featuring a 4-pin layout with A-Coded mechanical alignment molded from premium engineering polymers, optimizing resistance against heavy structural machinery vibrations and streamlining component replacement cycles.

HEAVY-DUTY PC-ABS STRUCTURAL HOUSING & WASH-DOWN RESISTANCE
- Ruggedized PC-ABS Enclosure: The sensor casing is molded from a high-grade PC-ABS engineering polymer alloy, ensuring superior mechanical impact absorption, resistance to structural cracking, and excellent resilience against mild industrial chemical exposures. The lens window is crafted from high-transmittance optical plastic. Its compact 18.5 × 76.9 × 43.4 mm geometric profile weighing only 50 g supports secure through-hole bolt fastening directly into machine frames.
- Extreme IP67 and IP69K Ingress Protection: Fully certified to resist fine dust ingress and absolute hot water submersion under intensive high-pressure sanitation washdowns. Backed by ECOLAB material compatibility certification and an extended operating temperature range spanning from severe freezing zones at -40°C up to high-heat conditions of +60°C, the Leuze LSS 46B-S12 delivers long-term reliable service across food processing clean rooms, cold chain hubs, micro-component electronic automated lines, and automated distribution hubs.

OPTICAL DATA & EMITTER PERFORMANCE
- Device Classification: Transmitter (TX) of a through-beam photoelectric sensor system
- Product Series: 46B Series
- Light Emitting Source: Red LED (Visible pulsed light configuration)
- Optical Wavelength: 620 nm
- Beam Profile Shape: Rectangular beam pattern
- Special Optical Mode: Small Light Spot (S - Highly concentrated focal point)
- Guaranteed Operating Range: 0 meters to 50 meters
- Maximum Typical Sensing Limit: 0 meters to 60 meters

ELECTRICAL DATA & RESPONSE TIMES
- Supply Operating Voltage: 10 ... 30 VDC (Includes integrated reverse polarity protection)
- Residual Voltage Ripple Allowed: 0 ... 15%
- Open-Circuit Current Consumption: ≤ 30 mA
- System Response Frequency: 500 Hz
- Initialization System Delay (Delay before availability): 300 ms
- Output Configuration: No switching outputs present (Control output logic resides exclusively on the matching Receiver unit)

CONNECTION INTERFACE & WIRING DETAILS
- Electrical Connection Type: M12 Standard Quick Disconnect Plug (Male Connector)
- Number of Contact Pins: 4-pin layout
- Mechanical Connector Alignment: A-Coded industrial specification
- Connector Shell Material: Specialized high-insulation engineering polymer
- Standard Power Rail Pin Assignment:
  + Pin 1: Positive Supply Input Rail (+24VDC)
  + Pin 3: Negative Supply Input Rail (0V)
  + Pin 2: Not used / Open lead
  + Pin 4: Not used / Open lead

MECHANICAL PROPERTIES & MATERIAL COMPOSITION
- Physical Housing Dimensions (W × H × L): 18.5 mm × 76.9 mm × 43.4 mm
- Net Device Weight: 50 g
- Enclosure Material: Heavy-duty PC-ABS engineering plastic alloy (Signature Leuze Red)
- Optical Window Lens Material: High-transmission technical grade Plastic
- Fixing Assembly Method: Rigid through-hole structural bolt mounting

ENVIRONMENTAL RATING & COMPLIANCE
- Ingress Protection Rating: IP67 and IP69K (High-pressure industrial washdown certified)
- Ambient Operating Temperature Range: -40°C to +60°C
- Ambient Storage Temperature Range: -40°C to +70°C
- Quality & System Standards: cULus certified, IEC 60947-5-2 compliant
- Chemical Sanitation Certification: Fully certified under rigid ECOLAB Material Compatibility guidelines.