The Leuze A7-V1-BZ2-S Acoustic Buzzer Element (Official Part Number: 50138151) belongs to the modular A7 – Advanced Series industrial signaling column family designed and manufactured by Leuze electronic (Germany). Engineered to complete multi-sensory factory floor alert architectures (combining visual light indication with auditory alarms), this acoustic module guarantees that operational status changes, critical faults, and emergency stop conditions are instantly perceived by operators, even within high-ambient-noise industrial production bays.

Acoustically, the Leuze 50138151 A7-V1-BZ2-S incorporates a high-efficiency electro-acoustic sound transducer that generates a penetrating continuous tone delivering a maximum sound pressure level of 105 dB at standard measurement distance. This sound level allows alert signals to easily pierce through the background mechanical rumble of stamping presses, compressors, and overhead conveyor tracks. A standout mechanical feature is the built-in 225° rotary potentiometer (Volume Control) situated within the module housing. This allows installation technicians to smoothly tailor sound output to match specific workplace acoustics and satisfy local occupational hearing safety regulations without needing separate external potentiometer circuitry.

The buzzer element features a standardized industrial diameter of Ø70 mm and mounts seamlessly to the top of any A7 modular stacklight column via an ergonomic bayonet twist-lock mechanism (Bayonet System). This design enables rapid installation, stacking, and reconfiguration by hand without tools, fasteners, or hard-wire re-routing. The internal contact PINs are corrosion-resistant and protected against accidental polarity reversal, operating on an industry-standard 24V DC supply voltage (PNP / VCC actuation) while drawing an exceptionally modest operating current of only 30 mA maximum.

The cylindrical enclosure is injection-molded from flame-retardant, UV-stabilized, and chemical-resistant industrial engineering polymer, weighing just 92 grams. When mounted within an A7 stacklight assembly, the module achieves an outstanding ingress protection rating of IP66 per IEC/EN 60529, providing reliable protection against dust ingress and high-pressure water washdowns during equipment sanitization. Fully compliant with international CE and CSA safety directives, the Leuze 50138151 A7-V1-BZ2-S is the premier signaling choice for CNC machine centers, packaging machinery, SMT lines, and automated warehouse transfer shuttles.

• Manufacturer: Leuze electronic GmbH + Co. KG
• Country of Origin: Germany (100% Germany Origin)
• Part Number / Order Code: 50138151
• Model Designation: A7-V1-BZ2-S
• Product Line: A7 – Advanced Series (Tower light element)
• Signaling Modality: Acoustic signaling device
• Tone Profile: Single continuous tone
• Maximum Sound Pressure Level: 105 dB (at standardized measuring distance)
• Number of Tones: 1 piece
• Local Operational Control: 225° rotary potentiometer
• Operational Control Function: Smooth volume control adjustment
• Nominal Operating Voltage (UB): 24 V DC (Permissible ripple tolerance ±10%)
• Maximum Current Consumption: 30 mA
• Electrical Actuation: Activated via contact PINs, PNP positive switching logic (VCC)
• Circuit Safeguards: Protected against accidental pin interchange and reverse polarity
• Mechanical Attachment: Quick-action Bayonet twist-lock system
• Dimensions (Diameter x Length): Ø 70 mm x 50 mm
• Mechanical Geometry: Cylindrical design
• Enclosure Material: High-grade flame-retardant industrial plastic
• Housing Color: Industrial Black / Gray
• Net Product Weight: 92 g
• Ingress Protection Rating: IP 66 (per IEC/EN 60529 when correctly assembled)
• Operating Ambient Temperature: -10°C to +60°C
• Compliance & Safety Approvals: CE, CSA certified
• Customs Tariff Number (HS Code): 85318070