Specifications are subject to change without notice (16.10.06)
1
Monitoring Relays
Product Description
Ordering Key
Housing
Function
Type
Item number
Output
Power supply
TRMS 3-phase over and under voltage,
phase sequence and phase loss monitoring relays
Detect when all 3 phases are present and have the
correct phase sequence (except for N versions)
Available versions (W4) supplied between phase and
neutral
Detect if all the 3-phase-phase or phase-neutral volt-
ages are within the set limits
Upper and lower limits separately adjustable
Measure on own power supply
Selection of measuring range by DIP-switches
Adjustable voltage on relative scale
Adjustable delay function (0.1 to 30 s)
Output: 8 A SPDT relay N.E.
For mounting on DIN-rail in accordance with
DIN/EN 50 022 (DPB01) or plug-in module (PPB01)
22.5 mm Euronorm housing (DPB01)
or 36 mm plug-in module (PPB01)
LED indication for relay, alarm and power supply ON
Type Selection
Mounting
Phase sequence Output
Supply:
Supply:
Supply:
detection
208 to 240 VAC
380 to 415 VAC
380 to 480 VAC
DIN-rail
yes
SPDT
DPB 01 C M23
DPB 01 C M48 W4
DPB 01 C M48
Plug-in
yes
SPDT
PPB 01 C M23
PPB 01 C M48 W4
Plug-in
yes
SPDT
PPB 01 C M48
DIN-rail
no
SPDT
DPB 01 C M23 N
DPB 01 C M48 N W4
DPB 01 C M48 N
Plug-in
no
SPDT
PPB 01 C M23 N
PPB 01 C M48 N W4
Plug-in
no
SPDT
PPB 01 C M48 N
Input
L1, L2, L3, N
DPB01: Terminals L1, L2, L3, N
PPB01: Terminals 5, 6, 7, 11
Measure on own supply
Note: Connect the neutral only
if it is intrinsically at the star
centre
Measuring ranges
208 to 240 VAC
177 to 275 V
L-L
AC
M23 versions
380 to 415 VAC
323 to 475 V
L-L
AC
PPB01CM48
PPB01CM48N
D/P PB01CM48W4
D/P PB01CM48NW4
380 to 480 VAC
323 to 550 V
L-L
AC
DPB01CM48
DPB01CM48N
True RMS 3-Phase, 3-Phase+N, Multi-function
Types DPB01, PPB01
Input Specifications
DPB 01 C M23
3-phase or 3-phase+neutral
line voltage monitoring relay
for phase sequence, phase
loss, over and under voltage
(separately adjustable set
points) with built-in time
delay function.
Supply ranges from 208 to
480 VAC covered by two
multivoltage relays.
DPB01
PPB01
Ranges
Upper level
+2 to +22%
of the nominal voltage
Lower level
-22 to -2%
of the nominal voltage
Note: The input voltage
must not exceed the maximum
rated voltage or drop below
the minumum rated voltage
reported above.
Hysteresis
Set points from 2 to 5%
1%
Set points from 5 to 22%
2%
2
Specifications are subject to change without notice (16.10.06)
DPB01, PPB01
Mode of Operation
Connected to the 3 phases
(and neutral) DPB01 and
PPB01 operate when all 3
phases are present at the
same time, the phase
sequence is correct (not N
versions) 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. In any case if
phase-neutral measurement
is selected both phase-
phase and phase-neutral
voltages are monitored. 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.
In case of N versions, the
relay monitors over and
under voltage.
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.
Power supply
Overvoltage cat. III
Rated operational voltage
(IEC 60664, IEC 60038)
through terminals:
L1, L2, L3, N
(DPB01)
5, 6, 7, 11
(PPB01)
D/P PB01CM23,
208 to 240 V
L-L
AC 15%
D/P PB01CM23N
45 to 65 Hz
D/P PB01CM48W4,
380 to 415 V
L-L
AC 15%
D/P PB01CM48NW4,
(220 to 240 V
L-N
AC 15%)
PPB01CM48, PPB01CM48N 45 to 65 Hz
DPB01CM48, DPB01CM48N
380 to 480 V
L-L
AC 15%
(220 to 277 V
L-N
AC 15%)
45 to 65 Hz
Rated operational power
DPB01CM23x, PPB01CM23x
13 VA @ 230
VAC, 50 Hz
DPB01CM48x, PPB01CM48x
13 VA @ 400
VAC, 50 Hz
Supplied by L1 and L2
DPB01CM48xW4
DPB01CM48xW4
13 VA @ 400
VAC, 50 Hz
Supplied by L1 and N
Supply Specifications
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
Environment
Degree of protection
IP 20
Pollution degree
3 (DPB01), 2 (PPB01)
Operating temperature
@ Max. voltage, 50 Hz
-20 to 60C, R.H. < 95%
@ Max. voltage, 60 Hz
-20 to 50C, R.H. < 95%
Storage temperature
-30 to 80C, R.H. < 95%
Housing
Dimensions
DPB01
22.5 x 80 x 99.5 mm
PPB01
36 x 80 x 94 mm
Weight
Approx. 120 g
Screw terminals
Tightening torque
Max. 0.5 Nm
according to IEC 60947
Approvals
UL, CSA
(except for W4 versions)
CE Marking
Yes
EMC
Electromagnetic Compatibility
Immunity
According to EN 61000-6-2
Emissions
According to EN 61000-6-3
General Specifications
Output
SPDT relay
Rated insulation voltage
250 VAC
Contact ratings (AgSnO
2
)
Resistive loads
AC 1
8 A @ 250 VAC
DC 12
5 A @ 24 VDC
Small inductive loads AC 15
2.5 A @ 250 VAC
DC 13
2.5 A @ 24 VDC
Mechanical life
30 x 10
6
operations
Electrical life
10
5
operations
(at 8 A, 250 V, cos
= 1)
Operating frequency
7200 operations/h
Dielectric strength
Dielectric voltage
2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 s)
Output Specifications
Specifications are subject to change without notice (16.10.06)
3
DPB01, PPB01
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
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
DPB01CM48,
DPB01CM48N
only
M48 Ph-N
220 VAC 230 VAC 240 VAC
277 VAC
Voltage
DPB01CM48,
DPB01CM48N
only
Operation Diagrams
4
Specifications are subject to change without notice (16.10.06)
Operation Diagrams (cont.)
(*)
N versions don't detect incorrect phase sequence.
DPB01, PPB01
(*)
Wiring Diagrams
DPB01
PPB01
Specifications are subject to change without notice (16.10.06)
5
Dimensions
22.5
8
0
8
3
.
5
99.5
6
3
28.5
DIN-rail
Note
When DPB01 or PPB01 is used with phase indicator lamps (see examples in the following diagrams), the lamp H1 or H2
might be dimly lit when there is a phase loss in L1 or L2. This might happen if the lamps used are the typical low power indi-
cator lamps, and there are no other loads present.
This fact can be avoided by using W4 models. Note that the neutral must be always connected to the device.
L2 L3
L1
L1
L2
L3
L1
L2
m<3
m
15
16
18
N
N
U
H1
H2
H3
DPB01
L1
L2
L3
N
6 7
5
L1
L2
m<3
1
4
3
U
11
m
H1
H2
H3
PPB01
36
8
0
94
28.5
6
3
90
Plug-in
DPB01, PPB01
PDF 
ZIP