Specifications are subject to change without notice (19.09.06) 1
Monitoring Relays
Product Description Ordering Key
Housing
Function
Type
Item number
Output
Power supply
Range
TRMS AC/DC over or under current
monitoring relays
Current measuring through external shunt or CT
Selection of measuring range by DIP-switches
Measuring ranges from 6 to 150 mV AC/DC and
0.4 to 4 VpAC(MI or MP range)
Adjustable current on relative scale
Adjustable hysteresis on relative scale
Adjustable delay function (0.1 to 30 s)
Programmable latching or inhibit at set level
Output: 8 A SPDT relay N.D. or N.E. selectable
For mounting on DIN-rail in accordance with
DIN/EN 50 022 (DIB02) or plug-in module (PIB02)
22.5 mm Euronorm housing (DIB02)
or36 mm plug-in module (PIB02)
LED indication for relay, alarm and power supply ON
Galvanically separated power supply
Type Selection
Input (voltage level)
DIB02 Terminals Y1, Y2
PIB02 Terminals 5, 7
Measuring ranges
Direct Internal resis. Max. volt.
Selectable by DIP-switch
6to 60 mV AC/DC 1 k2 V
15 to 150 mV AC/DC 1 k2 V
Max. voltage for 1 s 15 V
0.4 to 4 VpAC 50 k50 V
Max. voltage for 1 s 100 V
MI and MP CT ranges AAC rms Max. curr.
1-ph.: 3-ph.:
MI 5 MP 3005 0.5 to 5 A 20 AAC
MI 20 MP 3020 2 to 20 A 50 AAC
MI 100 MP 3100 10 to 100 A 250 AAC
MI 500 MP 3500 50 to 500 A 750 AAC
Note:
The input voltage cannot
raise over 300 VAC/DC with
respect to ground (PIB02 only)
1-Phase True RMS AC/DC Over or Under Current
Types DIB02, PIB02
Input Specifications
DIB 02 C B23 150mV
DIB02 and PIB02 are precise
TRMS AC/DC over or under
current (selectable by DIP-
switch) monitoring relays.
The current is measured through
an external shunt. 1-phase
and 3-phase current up to
500 AAC can be monitored
connecting MI or MP current
transformers.
Owing to the built-in latch
function, the ON-position of
the relay output can be
maintained. Inhibit function
can be used to avoid relay
operation when not desired
(maintenance, transitions).
The LED's indicate the state
of the alarm and the output
relay.
DIB02 PIB02
Note:
MP3... current transformers
not suitable for under cur-
rent measurement due to
the output signal of the
device (see data sheet)
Contact input
DIB02 Terminals Z1, Y1
PIB02 Terminals 8, 9
Disabled > 10 k
Enabled < 500
Latch disable >500 ms
Mounting Output Supply: 24 VDC Supply: 48 VDC Supply: 24/48 VAC Supply: 115/230 VAC
DIN-rail SPDT DIB 02 C 724 150MV DIB 02 C 748 150MV DIB 02 C B48 150MV DIB 02 C B23 150MV
Plug-in SPDT PIB 02 C 724 150MV PIB 02 C 748 150MV PIB 02 C B48 150MV PIB 02 C B23 150MV
2Specifications are subject to change without notice (19.09.06)
DIB02, PIB02
Mode of Operation
DIB02 and PIB02 monitor
both AC and DC over or
under current through an
external shunt.
When connected with MI or
MP current transformer (using
the 0.4 to 4 Vprange) they
can monitor 1-phase or 3-
phase AC current up to 500 A.
Example 1
(connection between termi-
nals Z1, Y1 or 8, 9 - latching
function enabled)
The relay operates and latch-
es in operating position
when the measured value
exceeds (or drops below) the
set level for morethan the
set delay time.
Provided that the current has
dropped below (or has
exceeded) the set point (see
hysteresis setting), the relay
releases when the intercon-
nection between terminals
Z1, Y1 or 8, 9 is interrupted
or the power supply is inter-
rupted as well.
The red LED flashes until the
delay time has expired or the
measured value comes back
to a non-alarm value (see
hysteresis setting).
Example 2 (MI CT)
(no connection between ter-
minals Z1, Y1 or 8, 9 - latch
function disabled)
The relay operates when the
current flowing in the CT
exceeds (or drops below) the
set level for morethan the
set delay time.
It releases when the current
drops below (or exceeds) the
set level (see hysteresis set-
ting) or when power supply
is interrupted.
Example 3 (MP CT)
(no connection between ter-
minals Z1, Y1 or 8, 9 - latch
function disabled - over cur-
rent measurement)
The relay operates when the
maximum current flowing in
the CT exceeds the set level
for more than the set delay
time.
It releases when the maxi-
mum current drops below
the set level (see hysteresis
setting) or when power sup-
ply is interrupted.
Note
When the inhibit contact is
opened, if the input signal is
already in alarm position, the
delay time needs to elapse
before relay activation.
Power supply Overvoltage cat. III
Rated operational voltage (IEC 60664, IEC 60038)
through terminals:
A1, A2 or A3, A2 (DIB02)
2, 10 or 11, 10 (PIB02)
724: 24 VDC ± 20%, insulated
748: 48 VDC ± 20%, insulated
B48: 24/48 VAC ± 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 4kV 4kV
Input to output 4kV 4 kV
Rated operational power
AC 4 VA
DC 3 W
Supply Specifications
Power ON delay 1s± 0.5 s or 6 s ± 0.5 s
Reaction time (input signal variation from
-20% to +20% or from
+20% to -20% of set value)
Alarm ON delay < 100 ms
Alarm OFF delay < 100 ms
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 (EN 60529)
Degree of protection IP 20
Pollution degree 3 (DIB02), 2 (PIB02)
Operating temperature -20 to 60°C, R.H. < 95%
Storage temperature -30 to 80°C, R.H. < 95%
Housing
Dimensions DIB02 22.5 x 80 x 99.5 mm
PIB02 36 x 80 x 94 mm
Weight Approx. 150 g
Screw terminals
Tightening torque Max. 0.5 Nm
acc. to IEC 60947
Approvals UL, CSA (except 748)
CE Marking Yes
EMC
Electromagnetic Compatibillity
Immunity According to EN 61000-6-2
Emission According to EN 61000-6-3
General Specifications
Output SPDT relay
Rated insulation voltage 250 VAC
Contact ratings (AgSnO2
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 106operations
Electrical life 105operations
(at 8 A, 250 V, cos ϕ=1)
Operating frequency 7200 operations/h
Dielectric strength
Dielectric voltage
2kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
Output Specifications
Specifications are subject to change without notice (19.09.06) 3
DIB02, PIB02
Function/Range/Level and Time Delay Setting
Adjust the measuring range set-
ting the DIP switches 1 and 2
and select the desired function
setting the DIP switches 3 to 6
as shown below.
T
oaccess the DIP switches
open the grey plastic cover as
shown below.
Selection of level and time
delay:
Upper knob:
Setting of hysteresis on rela-
tive scale: 0 to 30% on set
value.
Centre knob:
Current level setting on rela-
tive scale: 10 to 110% on full
scale.
Lower knob:
Setting of delay on alarm time
on absolute scale (0.1 to 30 s).
Measuring range
ON ON: 6 to 60 mV AC/DC
OFF ON: 15 to 150 mV AC/DC
ON OFF: 0.4 to 4 Vp
Relay working mode
ON: Normally De-Energized
OFF: Normally Energized
Power ON delay
ON: 6 s ± 0.5 s
OFF: 1 s ± 0.5 s
Contact input
ON: Latch function enable
OFF: Inhibit function enable
Monitoring function
ON: Over current
OFF: Under current
Operation Diagrams
Over current - N.D. relay
Under current - N.D. relay
Under current - Latch function - N.D. relay
Over current - Inhibit function - N.D. relay
4Specifications are subject to change without notice (19.09.06)
DIB02, PIB02
36
80
94
28.5
63
90
22.5
80
83.5
99.5
63
28.5
Dimensions
DIN-rail Plug-in
Wiring Diagrams
DIB02 PIB02