Electric School Bell 12 Inch

The wall-mounted design, crisp and bright sound, very saved the power consumption,which is the non-sparking electric bell. working on and below ac 380v circuits, used in factories, schools, railways, public and indoor place as an audio signal reminder and alarm function use scop : 1. the ambient temperature is not higher than +40 ° c, not lower than -40 ° c; 2. the relative humidity of the air is not more than 85%; 3. continuous operation for 10 minutes, the temperature rise does not exceed 80 °c; 4. the power supply voltage fluctuates within ±10% of the rated voltage range and can still work normally;