DPA55CM44
Mode of Operation
DPA55 monitors its own 3- phase power supply. The relay operates when all the phases are present, the phase
sequence is correct, and each phase-phase voltage is within the desired tolerance ( 10% or 15%).
The relay releases in case of incorrect phase sequence or when the voltage is out of the set limits.
Range setting
Select the proper nominal voltage level using DIP-switches as shown below.
Voltage window
ON:
15 %
OFF: 10 %
Measuring range
SW2
SW3
OFF
OFF
ON
SW4
OFF
ON
208 VAC
220 VAC
230 VAC
240 VAC
380 VAC
400 VAC
415 VAC
480 VAC
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
ON
OFF
ON
ON
ON
OFF
ON
ON
ON
Operation Diagrams
L2
L1
L3
L3
L2
L1
L1
L2
L3
L1
L2
L3
Relay ON
L1 - L2
Voltage
window
L2 - L3
L3 - L1
Set level
Power supply
Relay ON
Dimensions
Wiring Diagrams
17.5
67.2
18.7
ꢁ
NIC [ NIC-COMPONENTS CORP. ]
