Electric fire alarm bell

Size:diameter 300mm(can be customize)

Voltage:220V 

Material: plastic base,Iron chrome plated cover

This product is no spark electric bell, applicable to industrial and mining enterprises, organizations, public schools, and equipment of alternating current 50 hz, circuit of voltage below 220v, make a call or notice signal, can also be applied to other families the doorbell, alarm, etc

1   Height above sea level not exceed 2000m;

2   Ambient humidity is not higher than + 40 degrees and not less than 25 degrees, air relative humidity is not greater than 90% (when the temperature at + 25 degrees)

3   In ambient air no flammable and corrosive gas or conductive dust, no significant shaking and shock and vibration environment to use.

4   It can be work in the rated voltage ±10%,continue to work not exceed 10min. 

5   Pollution levels is level 2, installation category is class II