Siemens SENTRON 3VL series - Overcurrent trip units with LCD display

Displays and operator controls
8.2 Overcurrent trip unit with LCD display
3VL IEC molded case circuit breakers
114 System Manual, 11/2013, 110 0110 - 02 DS 03
8.2
Overcurrent trip unit with LCD display
The electronic trip units with LCD display have the following operating features:
● No auxiliary voltage is necessary for the tripping system.
● Current display
● Correct microprocessor operation is displayed.
● Overload status (I > 1.05 x I
R
) is indicated by "overload" on the LCD display
● Direct, user-friendly, menu-driven setting of the absolute values of the protection
parameters in absolute ampere values via buttons
● Integrated self-test function
● Plug-in socket for tester
● Communication link to PROFIBUS DP and MODBUS RTU possible
Note
Signal output to the COM20 / COM21
Communication
preparation (1 auxiliary switch and 1 alarm switch) is already integrated
into the left accessory compartment for all LCD
-ETUs and wired to the LCD-ETU. The
COM20
/ COM21 cable is included in the scope of supply.