2 Specifications are subject to change without notice (22.01.13)
Range - Level Setting
Adjust the measuring range
setting the DIP switches 1 to
4 as shown below.
To access the DIP switches
open the grey plastic cover
using a screwdriver as
shown below.
Centre knob:
Setting of voltage on relative
scale: from 10 to 110% of
the full-scale value.
Hysteresis:
Approx. 4% of set value, it
can be extended by insert-
ing a resistor between termi-
nals Z1, Y1 or 8, 9.
Approx. resistor values:
10%: 180 kΩ
25%: 47 kΩ
50%: 22 kΩ
75%: 15 kΩ
Latch: < 500 Ω
DUA01, PUA01
Mode of Operation
DUA01 and PUA01 monitor
both AC and DC over volt-
age. When connected with
MI or MP current trans-
former (using the 0.4 - 4 V
p
range) they can monitor 1-
phase or 3-phase AC cur-
rents up to 500 A.
Example 1
(connection between termi-
nals Z1, Y1 or 8, 9 - latch
function enabled)
The relay operates and
latches in operating position
when the measured value
exceeds the set level. Pro-
vided that the voltage has
dropped min. 4% below the
set point (see hysteresis),
the relay releases when the
interconnection between ter-
minals Z1, Y1 or 8, 9 is inter-
rupted or the power supply
is interrupted as well.
Example 2 (MI CT)
(no connection between ter-
minals Z1, Y1 or 8, 9)
The relay operates when the
current flowing through the
CT exceeds the set level. It
releases when the current
drops min. 4% below the set
level (see hysteresis) or
when power supply is inter-
rupted.
Example 3 (MP CT)
(no connection between ter-
minals Z1, Y1 or 8, 9 - latch
function disabled)
The relay operates when the
maximum current flowing
through the CT exceeds the
set level. It releases when
the maximum current drops
min. 4% below the set level
(see hysteresis) or when
power supply is interrupted.
Power supply
Overvoltage cat. III
Rated operational voltage (IEC 60664, IEC 60038)
through terminals:
A1, A2 or A3, A2 (DUA01)
2, 10 or 11, 10 (PUA01)
D48: 24 to 48 VAC/DC ± 15%
45 to 65 Hz, insulated
B23: 115/230 VAC ± 15%
45 to 65 Hz, insulated
Dielectric voltage DC supply AC supply
Supply to input 2 kV 4 kV
Supply to output 4 kV 4 kV
Input to output 4 kV 4 kV
Rated operational power
AC 4 VA
DC 2 W
Supply Specifications
Accuracy (15 min warm-up time)
Temperature drift ± 1000 ppm/°C
Repeatability ± 0.5% on full-scale
Indication for
Power supply ON LED, green
Output relay ON LED, red
Environment (EN 60529)
Degree of protection IP 20
Pollution degree 3 (DUA01), 2 (PUA01)
Operating temperature -20 to 60°C, R.H. < 95%
Storage temperature -30 to 80°C, R.H. < 95%
Housing
Dimensions DUA01 22.5 x 80 x 99.5 mm
PUA01 36 x 80 x 94 mm
Material PA66 or Noryl
Weight Approx. 150 g
Screw terminals
Tightening torque Max. 0.5 Nm
acc. to IEC 60947
Product standard EN 60255-6
Approvals UL, CSA
CE Marking L.V. Directive 2006/95/EC
EMC Directive 2004/108/EC
EMC
Immunity According to EN 60255-26
According to EN 61000-6-2
Emissions According to EN 60255-26
According to EN 61000-6-3
General Specifications (cont.)
Measuring range
OFF ON OFF OFF 0.4 to 4 V
p
ON OFF OFF OFF 2 to 20 VAC/DC
OFF OFF OFF OFF 5 to 50 VAC/DC
ON OFF ON OFF 20 to 200 VAC/DC
ON OFF OFF ON 50 to 500 VAC/DC
Reaction time
Alarm ON delay < 100 ms
(voltage rising from
-20% to +20% set value)
Alarm OFF delay < 300 ms
(voltage decreasing from
+20% to -20% set value)
General Specifications
