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HRF-10
Fmax
Fmin
25-28
15-18
OVER LED
UNDER LED
LED
t
t
t
Warning
Technical parameters
Device is constructed for connection in 1-phase main alternating current voltage and
must be installed according to norms valid in the state of application. Connection
according to the details in this direction. Installation, connection, setting and servicing
should be installed by qualifi ed electrician staff only, who has learnt these instruction
and functions of the device. This device contains protection against overvoltage
peaks and disturbancies in supply. For correct function of the protection of this device
there must be suitable protections of higher degree (A, B, C) installed in front of them.
According to standards elimination of disturbancies must be ensured. Before installation
the main switch must be in position “OFF” and the device should be de-energized.
Don´t install the device to sources of excessive electro-magnetic interference. By correct
installation ensure ideal air circulation so in case of permanent operation and higher
ambient temperature the maximal operating temperature of the device is not exceeded.
For installation and setting use screw-driver cca 2 mm. The device is fully-electronic -
installation should be carried out according to this fact. Non-problematic function
depends also on the way of transportation, storing and handling. In case of any signs
of destruction, deformation, nonfunction or missing part, don´t install and claim at your
seller.
Function
Supply and monitoring terminals:
Supply voltage:
Rated frequency Fn:
Burden (max):
Overload capacity
- continuous:
- max. 10 s:
Frequency Fmax:
Frequency Fmin:
Diff erence:
Delay (until failure):
Opening level (Uopen):
Output relay - contact:
AC contact capacity:
DC contact capacity:
Mechanical life:
Other information
Operating temperature:
Storage temperature:
Electrical strenght
(supply - relay contact):
Protection degree:
Pollution degree:
Protection degree:
Max. cable size (mm
2
):
Dimensions:
Weight:
Standards:
L, N
161 - 346 V
50 / 60 / 400 Hz
1.7 VA / 1.1 W
346 V
416 V
adjustable 80 - 120 % Fn
adjustable 80 - 120 % Fn
adjustable 0.5 - 5 % Fn
adjustable 0.5 - 10 s
161 V
2x changeover / SPDT (AgNi) gilded
250 V / 8 A, max. 2000 VA
30 V / 8 A
3x10
6
at rated load
-20 °C to 55 °C (-4 °F to 131 °F)
-30 °C to 70 °C (-22 °F to 158 °F)
4 kV / 1 min.
III.
2
IP40 from font panel / IP20 terminals
max. 2x 1.5 / 1x 2.5 (AWG 12)
90 x 52 x 64 mm (3.5 x 2 x 2.6˝)
125 g (4.4 oz.)
EN 60255-6, EN 60255-27, EN 61000-6-2, EN 61000-6-4
After the supply (monitored) voltage is connected, the green LED is on.
If the value of the monitored frequency falls within the range between the two set levels
Fmin - Fmax no red LED is on. The relay UNDER is triggered (contacts 15-16-18) and the
relay OVER is disconnected (contacts 25-26-28).
If the monitored frequency exceeds the set level Fmax, the relay OVER is triggered after
the set delay timing elapses and the red LED OVER goes on. The red LED fl ashes during
the timing.
If the monitored frequency drops below Fmax - diff erence, the relay is activated without
delay and the red LED OVER goes off .
If the monitored frequency drops below the set level Fmin, the relay UNDER is
disconnected after the set delay timing elapses and the red LED UNDER goes on. The red
LED fl ashes during the timing. If the monitored frequency exceeds the level Fmin + the
diff erence, the relay is triggered without delay and the red LED UNDER goes off .
If the monitored voltage is lower than the opening level Uopen both the relays are
disconnected and both the red LED (UNDER and OVER) start fl ashing slowly - indicating
insuffi
cient supply voltage.
diff erence
diff erence
