DWB02CM4810A CARLO GAVAZZI Selected parameters OUTPUT SIGNAL 1 relay SETPOINTS 2, adjustable MONITORED VARIA.. View larger
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DWB02CM4810A CARLO GAVAZZI Selected parameters OUTPUT SIGNAL 1 relay SETPOINTS 2, adjustable MONITORED VARIA..





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Selected parameters OUTPUT SIGNAL 1 relay SETPOINTS 2, adjustable MONITORED VARIABLE Power and power factor monitoring Others SIZE 45 mm POWER SUPPLY RANGE 380÷480 VAC MONITORING FUNCTION Active power monitoring MOUTING DIN-rail INPUT RANGE 10 A, 690 VAC DELAY 1, adjustable

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Energy Meters Control Analizers


Monitoring Relays and Measurement Current Transformers

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Monitoring Relays
3-Phase Active power
Types DWB02, PWB02
• 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
50 022 (DWB02) or plug-in module (PWB02)
• 45 mm Euronorm housing (DWB02) or 36 mm plug-in module (PWB02)
• LED indication for relay, alarm and power supply ON
Product Description
Ordering key
DWB 02 C M48 10A
DWB02 and PWB02 are precise TRMS active power monitoring relays for 3- phase balanced systems. They can be used for moni- toring the actual load of asynchronous motors and other symmetrical loads, as well as the power consump- tion by of system.
Start/stop input allowsto use a manual switch to start and stopthe system, with- out the need of an auxiliary
Type Selection
The advantage of using the latch function is that the alarm status can be kept even after the end of the alarm condition. Inhibit func- tion can be used to avoid relay operation when not desired(maintenance, tran- sitions).
The LED's indicate the state of the alarm and the output relay.
Housing Function Type
Item number
Power Supply
MountingOutputSupply: Supply:Supply: Supply:
208 to 240 VAC380 to 415 VAC 380 to 480 VAC600 to 690 VAC
DIN-rail SPDT DWB 02 C M23 10A DWB 02 C M48 10A DWB02 C M69 10A
Plug-in SPDT PWB 02 C M23 10A PWB 02 C M48 10A
Voltage (Own power supply):
3 - phase DWB02: L1, L2, L3
PWB02: 5, 6, 7
M23: 208 to 240 VAC ± 15% DWB02CM48: 380 to 480 VAC ± 15% PWB02CM48: 380 to 415 VAC ± 15% DWB02CM69: 600 to 690 VAC ± 15%
1- phase DWB02CM23: L1, L2
PWB02CM23: 5, 6
208 to 240 VAC ± 15% Current:DWB02: 5A, 10A: I1, I2
MI...:U1, U2
PWB02: 5A, 10A: 11, 10
MI...: 9, 8
Measuring ranges Upper level Lower level
Active power10 to 110 % 10 to 110 %
AACrmsMax. curr. (30s)
Direct input:0.5 to 5A30A
1 to 10A 50A
Standard CT (examples)
TADK2 50 A/5 A5 to 50 A60 A CTD1 150 A/5 A15 to 150 A180 A CTD4 400 A/5 A40 to 400 A480 A TAD12 1000 A/5 A100 to 1000 A1200 A TACO200 6000 A/5 A600 to 6000 A7200 A
MI CT ranges
MI 100 10 to 100 A250 AAC MI 500 50 to 500 A750 AAC
The input voltage cannot raise over 300 VAC with respect to ground (PWB02 only)
Contact input
DWB02 Terminals Z1, U2
PWB02 Terminals 2, 9
Disabled > 10 kΩ Enabled< 500 Ω Pulse width > 500 ms
Hysteresis~ 2% of set value - fixed
Specifications are subject to change without notice (07.06.10)1

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