Panel Buzzer Industrial Grade Electromagnetic Alarm Buzzer

The HRB-PS30 panel buzzer is an industrial-grade, 80dB electromagnetic alarm typically featuring a 220V AC (50Hz) or 24V DC input. Constructed from grey fireproof PC material, it offers continuous or intermittent sound modes and is designed for high-power audible alerts in control panels.
 
Key Technical Specifications:
Model: HRB-PS30
Operating Voltage: 220V AC (most common), also 12V-24V DC variants.
Sound Level: 80 dB (decibels).
Frequency: 50 Hz.
Current Consumption: Approx. 25mA.
Sound Type: Continuous and/or intermittent (selectable).
Material: Fire-retardant PC (Polycarbonate).
Mounting: Panel mount / Wall mount.
Operating Temperature: -40°C to 105°C.
Weight: ~70g. 

The device is commonly used as an industrial doorbell, security system alert, or machine failure warning buzzer.