Autonics B2PB-B1D Buzzer
Autonics B2PB-B1D Piezo Buzzer (12–24 VDC, Panel Mount)
Autonics B2PB-B1D is a compact piezo buzzer with loud audible output up to 98 dB, supporting continuous and intermittent sound operation for industrial alarm and indication applications.
The Autonics B2PB-B1D is a piezoelectric buzzer designed for reliable audible alerts in industrial control panels and machinery. It provides clear and loud sound output up to 98 dB, ensuring alarms are easily noticeable in noisy factory environments.
The buzzer supports continuous and intermittent sound modes, selectable by power connection direction, and is suitable for Ø22 / Ø25 mm panel mounting, making it easy to integrate into standard control panels.
Key Features
Loud sound output up to 98 ± 8 dB (at 0.1 m)
Continuous or intermittent sound operation
12–24 V DC power supply
Compact panel-mount design
Ø22 / Ø25 mm mounting hole compatibility
Built-in operation indicator (Green)
Low power consumption
IP65 protection (front side, IEC standard)
Reliable piezoelectric sound generation
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | B2PB-B1D |
| Product Type | Piezo Buzzer |
| Power Supply | 12–24 V DC |
| Permissible Voltage Range | 90–110% of rated voltage |
| Power Consumption | ≤ 0.6 W |
| Current Consumption | ≤ 25 mA |
| Sound Pressure Level | 98 8 dB (at 0.1 m) |
| Sound Frequency | Approx. 2.5 kHz |
| Sound Type | Continuous / Intermittent |
| Mounting Hole | Ø22 / Ø25 mm |
| Operation Indicator | Green LED |
| Protection Structure | IP65 (front side) |
| Operating Temperature | −15 to +55 °C |
| Material | Cap: PC, Body: PA6 (G15%) |
Applications
Industrial control panels
Machine alarm indication
Fault & status alert systems
Automation panels
Process equipment warning systems
Electrical panels & MCCs
What’s in the Box?
Autonics B2PB-B1D Piezo Buzzer
Instruction manual
FAQ
Q1. What sound modes does B2PB-B1D support?
It supports continuous and intermittent sound, selectable by power connection direction.
Q2. What is the operating voltage?
12–24 V DC.
Q3. Is this buzzer suitable for outdoor use?
No. It is designed for indoor industrial use only.
Q4. What panel cut-out size is required?
Compatible with Ø22 mm and Ø25 mm panel cut-outs.
Q5. Does it have an indicator LED?
Yes, it has a green operation indicator.