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 a ility 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 utton on the front, two trimmers and a switch on the ack, and finally a trimmer positioned ehind 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: y 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 utton 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
Cali ration undervoltage -20% (-10% set up)
Setting the maximum voltage +20% (+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 utton:
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”
360V
210V
START
400V
in the rear
set working voltage
in the rear
LED yellow “MIN”
LED green “NOM”
