UPS for emergency call set, pure white, glossy Features: Uninterruptible power supply for the Gira emergency call set. If the mains input voltage drops or is lost, the connected load continues to be supplied without interruption by the battery. If the mains input voltage increases or is present again, the battery is disconnected from the load and recharged in normal mains operation. The operating states 'UPS active' or 'battery defective' can be signaled via the signal contact (M). Notes: For installations in accordance with DIN VDE 0834. DIN VDE 0834 specifies the replacement of components with a limited service life (battery) once a year. Please observe the regulations for the disposal of used batteries.