Technical support: www.real-el.com
5
User's Manual
ENG
VR-101F
6. CONNECTION
VR-101F voltage relay is connected to a standard socket of 230 V / 50 Hz power
supply network. The socket must be rated at the current 16 A. The power supply
line of the socket must be protected by an automatic circuit breaker with current
not more than 16 A to protect against short circuit and overload. The circuit
breaker must be located in an electric service cabinet. Protected devices are
connected to the output socket of VR-101F. The long consumption current of
devices being connected to the relay must not exceed 2/3 of the maximum load
current indicated in its speci
fi
cation.
The voltage relay is designed for operation indoor only. The device operation is
inadmissible in places with high humidity and where ingress of liquid on its case
is possible. Ambient temperature during the voltage relay operation must be in
the range +10 to +35 °
С
.
7. PREPARATION TO OPERATION
VR-101F voltage relay has
fi
xed settings and does not need programming or
additional settings.
8. OPERATION
The voltage relay has the following operation modes:
•
normal operation;
•
protection mode;
•
turn-on delay mode.
The voltage relay is in normal operation, when the active voltage of the power
supply network is within 185-255 V limit and the turn-on delay time is over. In
this mode the protected equipment connected to the relay is de-energized, the
indicator
lights continuously.
If the voltage exceeds the set thresholds, the relay enters the protection mode.
In this mode the equipment connected to the relay is de-energized and one of
protection indicators starts to light:
when high voltage protection is actuated
or
when low voltage protection is actuated. The voltage relay will be in this
