Monitoring Relays
True RMS 3-Phase, 3-Phase+N, Multifunction
Types DPC01, PPC01
• TRMS 3-phase over and under voltage,
phase sequence, phase loss, asymmetry and
tolerance monitoring relay
• Detect when all 3 phases are present and have the
correct sequence
• Detect if all the 3-phase-phase or phase-neutral
voltages are within the set limits
• Detect if asymmetry and tolerance are within the set
value
• Separately adjustable setpoints
• Separately adjustable delay functions (0.1 to 30 s)
• Output: 2 x 8 A relay SPDT NE
• For mounting on DIN-rail in accordance with
DIN/EN 50 022 (DPC01) or plug-in module (PPC01)
• 45 mm Euronorm housing (DPC01) or 36 mm plug-in
module (PPC01)
• LED indication for relays, alarm and power supply ON
DPC01
PPC01
Product Description
3-phase or 3-phase+neutral
line voltage monitoring relay
for phase sequence, phase
loss, asymmetry, tolerance,
over and under voltage (sep-
arately adjustable set points)
with built-in time delay func-
tion.
Supply ranges from 100 to
690 VAC covered by three
multivoltage relays.
Ordering key
Housing
Function
Type
Item number
Output
Power Supply
DPC 01 D M48
Type Selection
Mounting Output
DIN-rail
DIN-rail
Plug-in
2 x SPDT
2 x SPDT
2 x SPDT
Frequency
50 - 60 Hz
50 - 400 Hz
50 - 60 Hz
Frequency
50 - 60 Hz
50 - 400 Hz
Supply:
100 to 115 VAC
DPC 01 D M11 400HZ
Supply:
440 to 480 VAC
DPC 01 D M49 400HZ
Supply:
208 to 240 VAC
DPC 01 D M23
DPC 01 D M23 400HZ
PPC 01 D M23
Supply:
380 to 480 VAC
DPC 01 D M48
Supply:
380 to 415 VAC
DPC 01 D M48 400HZ
PPC 01 D M48
Supply:
600 to 690 VAC
DPC 01 D M69
DPC 01 D M69 400HZ
Mounting Output
DIN-rail
DIN-rail
2 x SPDT
2 x SPDT
Input Specifications
Input
L1, L2, L3, N
DPC01:
PPC01:
Terminals L1, L2, L3, N
Terminals 5, 6, 7, 11
Measure their own supply
Ranges
Upper level
Lower level
Asymmetry
Tolerance
85 to 132
∆VAC
177 to 275
∆VAC
323 to 550
∆VAC
323 to 475
∆VAC
323 to 475
∆VAC
375 to 550
∆VAC
510 to 793
∆VAC
+2 to +22%
of the nominal voltage
-22 to -2%
of the nominal voltage
2 to 22%
of the nominal voltage
2 to 22%
of the nominal voltage
Note:
Connect the neutral only
if it is intrinsically at the star
centre
Measuring ranges
M11
M23
M48
DPC01
DPC01 400HZ
PPC01
M49
DPC01
M69
DPC01
Note:
The input voltage must
not exceed the maximum rated
voltage or drop below the
minimum rated voltage
reported above.
Hysteresis
1%
Set points from 2 to 5%
Set points from 5 to 22%
2%
Specifications are subject to change without notice (06.04.10)
1
DPC01, PPC01
Output Specifications
Output
Rated insulation voltage
Contact ratings
(AgSnO
2
)
AC 1
Resistive loads
DC 12
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
2 x SPDT relays N.E.
250 VAC
µ
8 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
≥
30 x 10
6
operations
≥
10
5
operations
(at 8 A, 250 V, cos
ϕ
= 1)
≤
7200 operations/h
Supply Specifications
Power supply
Rated operational voltage
through terminals:
L1, L2, L3, N (DPC01)
5, 6, 7, 11 (PPC01)
M11 - Delta Voltage:
M23 - Delta Voltage:
DPC01 M48 - Delta Voltage:
DPC01 M48 - Star Voltage:
PPC01 M48 - Delta Voltage:
PPC01 M48 - Star Voltage:
M48 400HZ - Delta Voltage:
M48 400 HZ- Star Voltage:
M49 400HZ - Delta Voltage:
M49 400 HZ- Star Voltage:
M69 - Delta Voltage:
M69 - Star Voltage:
M69 400HZ- Delta Voltage:
M69 400HZ- Star Voltage:
Rated operational power
M11
M23
M48
M69
Overvoltage cat. III
(IEC 60664, IEC 60038)
Operating frequency
Dielectric strength
Dielectric voltage
≥
2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
100 to 115VAC ±15%; 45 to 65Hz
208 to 240VAC ±15%; 45 to 65Hz
380 to 480VAC ±15%;45 to 65Hz
220 to 277VAC ±15%;45 to 65Hz
380 to 415VAC ±15%;45 to 65Hz
220 to 240VAC ±15%;45 to 65Hz
380 to 415VAC ±15%;45 to 440Hz
220 to 240VAC ±15%;45 to 440Hz
440 to 480VAC ±15%;45 to 440Hz
254 to 277VAC ±15%;45 to 440Hz
600 to 690VAC ±15%;45 to 65Hz
347 to 400VAC ±15%;45 to 65Hz
600 to 690VAC ±15%;45 to 440Hz
347 to 400VAC ±15%;45 to 440Hz
8 VA @
∆115
VAC, 50 Hz
9 VA @
∆230
VAC, 50 Hz
13 VA @
∆400
VAC, 50 Hz
21 VA @
∆600
VAC, 50 Hz
Supplied by L2 and L3 for
the DIN-rail versions and
by L1 and L2 for the Plug-in
versions
General Specifications
Power ON delay
Accuracy
Temperature drift
Delay ON alarm
Repeatability
Reaction time
Incorrect phase sequence
or total phase loss
Voltage level
Asymmetry level
Alarm ON delay:
Alarm OFF delay:
Indication for
Power supply ON
Alarm ON
Output relays ON
Environment
Degree of protection
Pollution degree
Operating temperature
@ Max. voltage, 50 Hz
@ Max. voltage, 60 Hz
Storage temperature
1 s ± 0.5 s or 6 s ± 0.5 s
(15 min warm-up time)
± 1000 ppm/°C
± 10% on set value ± 50 ms
± 0.5% on full-scale
Housing
Dimensions
Material
Weight
Screw terminals
Tightening torque
Product standard
Approvals
DPC01
PPC01
45 x 80 x 99.5 mm
36 x 80 x 94 mm
PA66 or Noryl
Approx. 220 g
(DPC01)
Max. 0.5 Nm
acc. to IEC 60947
EN 60255-6
UL, CSA
GL (DPC01 only, except
400Hz, M11)
L.V. Directive 2006/95/EC
EMC Directive 2004/108/EC
According to EN 60255-26
According to EN 61000-6-2
According to EN 60255-26
According to EN 61000-6-3
< 200 ms
(input signal variation from
-20% to +20% or from
+20% to -20% of set value)
< 200 ms (delay < 0.1 s)
< 200 ms (delay < 0.1 s)
LED, green
LED, red (flashing 2 Hz
during delay time)
2 x LED, yellow
(EN 60529)
IP 20
3 (DPC01), 2 (PPC01)
-20 to +60°C, R.H. < 95%
-20 to +50°C, R.H. < 95%
-30 to +80°C, R.H. < 95%
CE Marking
EMC
Immunity
Emissions
2
Specifications are subject to change without notice (06.04.10)
DPC01, PPC01
Mode of Operation
Asymmetry definition.
Asymmetry is an indicator of
the mains quality and it is
defined as the absolute val-
ue of the maximum devia-
tion among the mains volt-
ages, divided by the nominal
voltage of the 3-phase sys-
tem. The definition changes
according to the voltage ref-
erence:
1) in case of measuring
phase-phase voltages:
max |∆V
PH-PH
|
V
∆NOM
Tolerance definition.
Tolerance is another indicator
of the mains quality and it is
definied as the absolute val-
ue of the maximum deviation
of the mains voltages from
the nominal voltage, divided
by the nominal voltage of the
3-phase system. The defini-
tion changes according to
the voltage reference:
1) in case of measuring
phase-phase voltages:
max |V
∆NOM
- V
PH-PH
|
V
∆NOM
Connected to the 3 phases
(and neutral) DPC01 and
PPC01 operate when all 3
phases are present at the
same time and the phase
sequence is correct. It can
be decided whether to mon-
itor upper and lower voltage
level of each phase or their
asymmetry and tolerance.
Voltage level monitoring:
if one or more phase-phase
or phase-neutral voltage
exceed the upper set level
or drop below the lower set
level, the red LED starts
flashing 2 Hz and the
output
relay
respective
releases after the set time
period.
Asymmetry and tolerance
monitoring:
if one or more phase-phase
or phase-neutral voltage
exceed the set levels the red
LED starts flashing 2 Hz and
the respective output relay
releases after the set time
period.
Note:
For both functions, if
the phase sequence is
wrong or one phase is lost,
both output relays release
immediately. Only 200 ms
delay occurs. The failure is
indicated by the red LED
flashing 5 Hz during the
alarm condition.
Example 1
(Mains monitoring - over and
under phase-phase voltage)
The relay monitors over and
under voltage, phase loss
and
correct
phase
sequence.
Example 2
(Motor monitoring - starting
and operating load -asym-
metry and tolerance of
phase-neutral voltage)
DPC01 and PPC01 ensure
correct starting and operat-
ing conditions. They monitor
the voltage level, phase
sequence (correct direction
of the motor rotation) and
asymmetry.
Frequent failures are fuse
blowing and incorrect volt-
age level. In case of fuse
blowing the motor regener-
ates a voltage in the inter-
rupted phase. The relay
detects the failure and reacts
due to excessive imbalance
among the phases.
x 100
x 100
2) in case of measuring
phase-neutral voltages:
max |∆V
PH-N
|
V
NOM
2) in case of measuring
phase-neutral voltages:
max |V
V
NOM
NOM
x 100
- V
PH-N
|
x 100
Example: phase-neutral monitoring
Y
L1
V
NOM
= V
L1-N
= V
L2-N
=V
L3-N
L1
L1’
N
V’
L3-N
L3
N’
V’
L2-N
L2
L3
L3’
N
L2’
L2
max
|D
V
PH-N
|
=
|
V’
L3-N
-V’
L2-N
|
max
|
V
NOM
-V
PH-N
|
=
|
V
NOM
-V’
L3-N
|
Y
Y
max
|D
V
PH-N
|
= 0
Þ
ASY = 0
max
|
V
NOM
-V
PH-N
|
=
|
V
NOM
-V’
L1-N
|
=
|
V
NOM
-V’
L2-N
|
=
|
V
NOM
-V’
L3-N
|
Y
Y
Y
Y
Example: phase-phase monitoring
Function/Range/Level/Time Setting
Adjust the input range set-
ting the DIP-switches 3 and
4. Select the desired func-
tion setting the DIP-switches
5 and 6 as shown below. To
access the DIP-switches
open the plastic cover using
a screwdriver as shown
below.
Centre knobs:
Setting of upper ( ) and low-
er ( ) level or setting of
asymmetry (ASY) and toler-
ance ( ) on relative scale.
Lower knobs:
Setting of delay on alarm
times (DELAY 1, DELAY 2)
on absolute scale:
0.1 to 30 s.
DPC01
DPC01
3-phase monitoring relay
10
6
2
AL
PPC01
PPC01
3-phase monitoring relay
14
18
6
10
14
18
22%
1
10 0.3
30s 0.1
3
DPC01 400 HZ
DPC01
3-phase monitoring relay
10
6
2
AL
14
18
6
10
14
18
22%
10
6
2
1
AL
14
18
6
10
14
18
22%
22% 2
1
3
22% 2
1
3
10 0.3
30s 0.1
1
3
22% 2
3
10 0.3
30s 0.1
1
3
/
10
30s
/
10
30s
/
10
30s
0.3
0.1
0.3
0.1
0.3
0.1
DELAY 1
DELAY 2
DELAY 1
DELAY 2
DELAY 1
DELAY 2
Specifications are subject to change without notice (06.04.10)
3
DPC01, PPC01
Function/Range/Level/Time Setting (cont.)
Power-ON delay
ON: 6 s ± 0.5 s
OFF: 1 s ± 0.5 s
Monitoring
ON: Phase-Neutral voltages
OFF: Phase-Phase voltages
Measuring range
SW3
SW4
M11 Ph-Ph
Voltage
M23 Ph-Ph
Voltage
M48 Ph-Ph
Voltage
M48 Ph-N
Voltage
M49 Ph-Ph
Voltage
M49 Ph-N
Voltage
DPC01DM69
Ph-Ph Volt.
DPC01DM69
Ph-N Volt.
ON
ON
OFF
ON
OFF
ON
100 VAC 100 VAC 115 VAC
208 VAC 220 VAC 230 VAC
380 VAC 400 VAC 415 VAC
OFF
OFF
115 VAC
240 VAC
480 VAC
DPC01 only
220 VAC 230 VAC 240 VAC 277 VAC
DPC01 only
440 VAC 440 VAC 480 VAC 480 VAC
254 VAC 254 VAC 277 VAC
600 VAC 600 VAC 690 VAC
347 VAC 347 VAC 400 VAC
277 VAC
690 VAC
400 VAC
Output
ON: 2 x SPDT relays
OFF: 1 x DPDT relay
Function
ON: Asymmetry and tolerance monitoring
OFF: Over and undervoltage monitoring
Operation Diagrams
Over and undervoltage monitoring (2 x SPDT relays)
4
Specifications are subject to change without notice (06.04.10)
DPC01, PPC01
Operation Diagrams (cont.)
Asymmetry and tolerance monitoring (2 x SPDT relays)
Phase sequence, total phase loss
Specifications are subject to change without notice (06.04.10)
5
