The FMB-628 Panel Mount Piezo Buzzer is a robust self-driven audible signalling device designed for industrial control systems, machinery, automation equipment, alarm panels, security installations, and commercial electronic applications. Rated for 24V DC operation with a wide 4V to 28V DC operating voltage range, this buzzer produces a distinctive dual-tone audible signal at 2900Hz, making it ideal for warning, fault indication, and equipment status notifications.
Its 43.5mm round panel-mount housing provides a secure and professional installation in electrical enclosures, operator panels, and industrial control cabinets. The convenient screw terminal (plate) connections allow for quick, reliable wiring and easy maintenance without soldering.
The integrated oscillator enables direct operation from a DC power supply, eliminating the need for an external drive circuit and simplifying system design. Built using durable piezoelectric technology, the FMB-628 offers dependable long-term performance, low power consumption, and maintenance-free operation in demanding industrial environments.
The dual-tone output provides enhanced audibility and helps distinguish alarm conditions from standard operating notifications, making it suitable for safety-critical applications.
Features
Self-driven piezoelectric buzzer
Rated for 24V DC operation
Wide operating voltage range: 4V to 28V DC
Distinctive dual-tone audible output
Operating frequency of 2900Hz
Round panel-mount design
Screw terminal connections for easy installation
Built-in oscillator for direct DC operation
Durable construction for industrial use
Reliable long-life, maintenance-free operation
Specifications
Part Number: FMB-628
Product Type: Piezoelectric Buzzer
Drive Type: Self-Driven
Shape: Round
Mounting Type: Panel Mount
Rated Voltage: 24V DC
Operating Voltage Range: 4V - 28V DC
Voltage Type: DC
Frequency: 2900Hz
Tone Type: Dual Tone
Termination: Screw Terminal (Plate)
Face Diameter: 43.5mm
Height: 34.5mm
Applications
Industrial control panels
Machine fault indication
Alarm and warning systems
Security and access control systems
Factory automation equipment
Electrical switchboards
Process control systems
OEM electronic equipment
Emergency notification systems
Commercial and industrial electronic projects
What's in the box
1 x FMB-628 24V Panel Mount Piezo Buzzer Dual Tone Screw Terminal 43.5mm
