Split Phase stacks two
modules together with
180° phase shifting.
Two 120V legs stacked
together with this
method produce 240V
(leg-leg).
Two Phase stacks two modules
together with 120° phase shifting.
Two 120V legs stacked together
with 120° phase shifting produce
208V (leg-leg). This is also used in
the Two Phase 480V configuration
by stacking two 277V modules.
Module #1
Module #2
Common
Neutral
Common
Neutral
Module #1
Module #2
Module #3
Three Phase stacks three
modules with 120° phase shifting.
Three 120V legs stacked together
with 120° phase shifting produces
a true
120/208 Wye configuration.
This can also be used in a Three
Phase 277/480 configuration.
Module #1
Module #2
Common
Neutral
1.3 Phase Configurations
The LM/LMOPT Central Inverter System is a modular design which can
produce many different configurations of voltages. Since all of the modules
AC outputs have a common neutral point, modules can be arranged in a
split-phase (180° phasing) with two modules, two phase (120° phasing) with
two modules, and three phase (120° phasing) with three modules.
Split Phase
Two Phase
Three Phase
4 | INSTALLATION / OPERATION MANUAL
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