CARLO GAVAZZI DWB03 Quick Start Manual

Monitoring Relays
DWB03, PWB03
3-Phase Active power direction
Types DWB03, PWB03
DWB03
Product Description
DWB03 and PWB03 are
precise TRMS active
power monitoring relays for
3-phase balanced systems.
They can be used for mon-
itoring the actual load of
asynchronous motors and
other symmetrical loads, as
well as to see if the power
flows in the correct direc-
tion.
Start/stop input allows to
Type Selection
Mounting Output
DIN-rail SPDT
Plug-in SPDT
Input Specifications
Input
Voltage (own power supply):
3 - phase DWB03:
PWB03:
M23:
DWB03CM48:
PWB03CM48:
DWB03CM69:
1- phase DWB03CM23:
PWB03CM23:
Current: DWB03:
PWB03:
Measuring ranges
Active power
Direct input:
Specifications are subject to change without notice (09.06.2021)
PWB03
use a manual switch to start
and stop the system, with-
out the need of an auxiliary
device.
The advantage of using the
latch function is that the
alarm status can be kept
even after the end of the
alarm condition.
The LED's indicate the state
of the alarm and the output
relay.
Supply:
208 to 240 VAC
DWB 03 C M23 10A
PWB 03 C M23 10A
L1, L2, L3
5, 6, 7
208 to 240 VAC ± 15%
380 to 480 VAC ± 15%
380 to 415 VAC ± 15%
600 to 690 VAC ± 15%
L1, L2
5, 6
208 to 240 VAC ± 15%
5A, 10A: I1, I2
MI...:U1, U2
5A, 10A: 11, 10
MI...: 9, 8
Upper level Lower level
-100 to 100 % -100 to 100 %
AACrms Max. curr.
(30s)
0.5 to 5A 30A
1 to 10A 50A
• TRMS active power relays for three phase
balanced applications
• Measuring if active power is within set limits
• Measure their own power supply
• Measuring ranges: 5A, 10A, MI current transformers
• Power ON delay 1 to 30 s knob selectable
• Separately adjustable upper/lower level on relative
scale
• Programmable latching or inhibit at set level
• Automatic and manual start and stop of the system
• Output: 8 A SPDT relay N.D. or N.E. selectable
• For mounting on DIN-rail in accordance with DIN/EN/
EC 60715 (DWB03) or plug-in module (PWB03)
• 45 mm Euronorm housing (DWB03) or 36 mm plug-in
module (PWB03)
• LED indication for relay, alarm and power supply ON
Ordering key
Housing
Function
Type
Item number
Output
Power Supply
Range
Supply: Supply:
380 to 415 VAC 380 to 480 VAC
DWB 03 C M48 10A
PWB 03 C M48 10A
Standard CT (examples)
TADK2 50 A/5 A
CTD1 150 A/5 A
CTD4 400 A/5 A
TAD12 1000 A/5 A
TACO200 6000 A/5 A
MI CT ranges
MI 100
MI 500
Note:
The input voltage cannot
raise over 300 VAC with
respect to ground (PWB03
only)
Contact input
DWB03
PWB03
Disabled
Enabled
Pulse width
Hysteresis
DWB 03 C M48 10A
Supply:
600 to 690 VAC
DWB03 C M69 10A
5 to 50 A 60 A
15 to 150 A 180 A
40 to 400 A 480 A
100 to 1000 A 1200 A
600 to 6000 A 7200 A
10 to 100 A 250 AAC
50 to 500 A 750 AAC
Terminals Z1, U2
Terminals 2, 9
> 10 kW
< 500 W
> 500 ms
~ 2% of set value - fixed
1