Specifications

L2234
L2778
L4681
L5179
Emax
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Doc. No
Model
Apparatus
Scale
Page No
1SDH000460R0002
L5439
13.5.3.1. Measurements Menu table
Protection Parameter / Function Values Notes
Historicals Trips
Events
Measurements
I Max
Reset measurements
Last trip (20)
Events log (80 events max.)
Current
Peak factor
Contact wear Percentage of wear on CB contacts
13.5.4. Settings Menu
1/5
Protections settings
Measurements
Protections
Menu
Settings
The configuration parameters in the Settings menu are password protected. Among the most
significant values you can select, note the neutral threshold (values 50%, 100%, 150%, 200%),
the external toroid size (values 100A, 250A, 400A, 800A), the mains frequency at the installation
(values 50Hz, 60Hz). For a more detailed description of the settings for the modules, refer to the
documentation on the modules (ch. 15).
1/8
Circuit breaker settings
Main Frequency
Modules
Circuit Breaker
Settings
2/3
Neutral settings
Neutral Protection
Unit installation
Ground protection
Circuit Breaker
On
Neutral threshold
Enable
Neutral protection
21/2
Enter 
Enter  + PWD
13.5.4.1. Settings Menu table
Parameter / Function Values Notes
Circuit breaker (*) Neutral protection
Enable ON/OFF
Neutral threshold 50%-100%-150%-200%
Ground protection Said protection is provided only in the
event of an external toroid being used
External toroidal transformer Absent, SGR, Rc
Toroid size SGR
Mains frequency 50 Hz - 60Hz
Modules Module
PR120/V - Measuring if any see par. 13.5.4.4.1
PR120/D-M - COM if any see par. 13.5.4.4.2
PR120/K - Signalling if any see par. 13.5.4.4.3
Local Bus unit Absent - Present
Data logger Enable ON/OFF
Sampling frequency
Stop event
Stopping delay
Restart
Stop
Measurement
interval
from 5 to 120 min,
step 5 min
Harmonic
distortion
ON/OFF The warning indicates that the distor-
tion exceeds factor 2,1
Sistem Date
Time
Language English/Italiano/Francais/
Deutsch/Español
New password
Display Contrast
* With the three-pole circuit breaker, the “3P+N” option is displayed and must be enabled if the outside neutral is installed.
The summary table relates to the surfing of the pages dedicated to the PR120/K module (see par. 15.3) and to the PR021/K unit
(see par. 16.1).