Phase monitoring relay DUW-C12 | Safety and emergency lighting
The lighting also includes safety and emergency lighting systems, they can be found in almost all public or commercial buildings and are prescribed by a standard. In the event of a fire or power failure, they should enable people to leave the building safely and provide orientation for people and the fire brigade.
Task
If the general lighting fails due to a power failure or undervoltage, the safety and emergency lighting must be switched on.
Solution
The phase monitoring relay DUW-C12 monitors the general power supply for undervoltage. If the voltage in one of the three phases falls below the fixed threshold value of 85% of the nominal voltage, a relay contact switches on the safety and emergency lighting.
Advantages
- for emergency lighting systems according to DIN VDE 0108-100
- integrated test button
use in three- and one-phase networks