2
Specifications are subject to change without notice (23.10.06)
Adjust the input range set-
ting the DIP switches 3 and
4 as shown below.
Select the desired function
setting the DIP switches 1
and 2 as shown below.
To access the DIP swiches
open the grey plastic cover
as shown below.
Selection of level and time
delay:
Upper knob:
Setting of lower level on rel-
ative scale.
Centre knob:
Setting of upper level on rel-
ative scale.
Lower knob:
Setting of delay on alarm
time on absolute scale (0.1
to 30 s).
Function/Range/Level and Time Delay Setting
DPB71
Mode of Operation
Connected to the 3 phases
(and neutral) DPB71 oper-
ates when all 3 phases are
present at the same time,
the phase sequence is cor-
rect and the phase-phase (or
phase-neutral) voltage levels
are within set limits.
If one or more phase-phase
or
phase-neutral
voltages
exceeds the upper set level
or drops below the lower set
level, the red LED starts
flashing 2 Hz and the output
relay releases after the set
time period. If the phase
sequence is wrong or one
phase is lost, the output
relay releases immediately.
Only 200 ms delay occurs.
The failure is indicated by
the red LED flashing 5 Hz
during the alarm condition.
Example 1
(mains network monitoring)
The relay monitors over and
under voltage, phase loss
and
correct
phase
sequence.
Example 2
(load monitoring)
The relay releases in case of
interruption of one or more
phases, when one or more
voltages
drop
below
the
lower set level or exceed the
upper set level.
Environment
Degree of protection
IP 20
Pollution degree
3
Operating temperature
-20 to 60°C, R.H. < 95%
Storage temperature
-30 to 80°C, R.H. < 95%
Housing
Dimensions
35.5 x 81 x 67.2 mm
Material
PA66
Weight
Approx. 100 g
Screw terminals
Tightening torque
Max. 0.5 Nm
according to IEC 60947
Approvals
UL, CSA
CE Marking
Yes
EMC
Electromagnetic Compatibility
Immunity
According to EN 61000-6-2
Emissions
According to EN 61000-6-3
Power ON delay
1 s ± 0.5 s or 6 s ± 0.5 s
Reaction time
Incorrect phase sequence or
total phase loss
< 200 ms
Voltage level
(input signal variation from
-20% to +20% or from
+20% to -20% of set value)
Alarm ON delay
< 200 ms (delay < 0.1 s)
Alarm OFF delay
< 200 ms (delay < 0.1 s)
Accuracy
(15 min warm-up time)
Temperature drift
± 1000 ppm/°C
Delay ON alarm
± 10% on set value ± 50 ms
Repeatability
± 0.5% on full-scale
Indication for
Power supply ON
LED, green
Alarm ON
LED, red (flashing 2 Hz
during delay time)
Output relay ON
LED, yellow
General Specifications
Power ON delay
ON: 6 s ± 0.5 s
OFF: 1 s ± 0.5 s
Monitored voltage
ON: Phase-Neutral
OFF: Phase-Phase
Measuring range
SW3
ON
ON
OFF
OFF
SW4
ON
OFF
ON
OFF
M23 Ph-Ph
208 VAC 220 VAC 230 VAC
240 VAC
Voltage
M48 Ph-Ph
380 VAC 400 VAC 415 VAC
480 VAC
Voltage
M48 Ph-N
220 VAC 230 VAC 240 VAC
277 VAC
Voltage
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