Instruction manual - rev 1.1
EN0546 is a device for the control of under and over voltage protection and for the visualization of the output voltage for alternators.
The ability to select the working voltage (230V three-phase, 230V single phase, 400V three-phase) EN0546 allows a wide range of applications.
The device has 3 LEDs and a button on the front, two trimmers and a switch on the back, and finally a trimmer positioned behind the front
panel.
The operation of the device in case of exceeding the maximum or minimum voltage limits must stop the supply voltage of the generator. This is
usually performed in two ways: by short-circuiting or interrupting the excitation of the alternator through a relay contact.
In the start-up phase, it is necessary to exclude the control dell'EN0546 pressing the button on the front panel to move from the stopped state of
the machine to a state of rotation.
The device notifies you via the 3-color LED's on the front if the output voltage of the generator is correct.
Specifications
Rated voltage
400V | 230V Trifase | 230V Monofase
Time for action
From 0,1 to 10 seconds
Frequency
50 - 60 Hz ± 5%
Maximum power consumption 3,0 VA
Temperature of use
From -10 to +50°C (non-condensing)
Storage temperature
From -10 to +80°C (non-condensing)
Relay contact
Contact in exchange
Maximum switching voltage
250V (ac)
Current Rating
10A
Calibration undervoltage
-20% (-10% set up)
Setting the maximum v20% (+10% set up)
Degree of protection
IP55
Container size
96x48x76 mm
Cut - out
92x45 mm
Weight
260g
Description keyboard
Button Start:
Button change the state of the output relè (4-5-
6);
pressing the button:
Exit 5-6 passes from NC to NO
Exit 4-5 passes from NO to NC
LED:
LED V minimum: color yellow
LED V nominal : color green
LED V maxim: color red
EN0546
1
rev 1.1
LED red “MAX”
440V
360V
210V
START
400V
245V
set alarm range
in the rear
230V
set working voltage
in the rear
LED yellow “MIN”
LED green “NOM”
