Siemens 3VA1 100 A Manual page 334

Accessories
4.8 Residual current devices
Description of front panel view
Display elements
"Ready" signals, communication status and alarms
● "Ready" signal of the residual current device:
The LED labeled "ACT"
operate.
● Communication status:
The LED labeled "COM"
communication status of the residual current device.
● Pre-alarms:
The Advanced RCD820 has two LEDs labeled "AL1" (ALARM 1)
2)
shutdown of the installation due to residual current.
334
①
②
③
which light up successively or simultaneously to promptly indicate potential
stands for ACTIVE and lights up when the device is ready to
stands for COMMUNICATION and indicates the
③
and "AL2" (ALARM
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02