- Brand: East Portland Electrical
- Model: 3-inch DC12V
With a range
This product is no spark bells, suitable for industrial and mining enterprises, organizations, schools and public places equipment supporting voltage DC12V the following circuit, for call or notification signal, the other is also applicable to the family as a doorbell, alarm and other uses.
Second, the normal working conditions:
1. not more than 2000 meters above sea level
2. The ambient medium humidity no higher than +40 degrees and no less than --25 degrees air relative humidity less than 90% (when the temperature is + 25 degrees)
3. No ambient air flammable and corrosive gas or conductive dust and no significant shake and shock vibration environments.
4. able to work properly when the rated voltage ± 10%, no more than 10 minutes continuously.
5. Pollution levels for 2, installation category II class