ComAp MainsPro - Wiring; Star Connection; Delta Connection

MainsPro, SW version 1.4, ©ComAp – January 2013
MainsPro Installation and Operation Guide
1-7
Wiring
“Star” connection
If used for rated voltage 230 VAC ph-ground, set the setpoint Basic: Uin is to 230/400V, for systems
with rated voltage 120VAC ph-ground, set the setpoint Basic: Uin is to 120V. No additional setting is
necessary for indication of “Star” connection - MainsPro provides automatic detection of phase-ground
voltage measurement. MainsPro provides over-range to 130% of the rated voltage, i.e. 300 VAC for
230 V system and 156 V for 120 V system with no change of measurement accuracy.
L1
L3
L2
N
“Delta” connection
In this arrangement, MainsPro is rated for 400 VAC ph-ph with over-range to 130% = 520 VAC with no
change of measurement accuracy. Setpoint Basic: Uin is to be set to 230/400V, no additional setting is
necessary for indication of “Delta” connection. MainsPro provides automatic detection of phase-phase
voltage measurement.
L1
L3
L2