YASKAWA Solectria PVI 25TL-208 Installation And Operation Manual page 58

Installation and Operation Guide SOLECTRIA® PVI 25TL-208, PVI 50TL-480 and PVI 60TL-480
When bonding the inverter/mount to a metallic structure is required, use a OT type terminal to connect the
ground conductor to the external bonding point at the bottom of the wiring box. The bonding point is located at
the bottom of the Wire Box as shown in Figure 3-37.
Order of Connection Conductors: Always connect the Equipment Grounding Conductor (EGC) before
terminating any of the AC conductors.
When the output of the inverter is connected to the grid, an external AC circuit breaker is required to be installed
to safely disconnect the inverter from the grid should an overcurrent event occur.
Table 3-13. Selecting a breaker of another size may either result in nuisance tripping or rejection from the AHJ.
INVERTER
SOLECTRIA PVI 25TL-208
SOLECTRIA PVI 50TL-480
SOLECTRIA PVI 60TL-480
The AC terminals in the SOLECTRIA PVI 25TL-208, PVI 50TL-480, and PVI 60TL-480 are dual rated by UL for use with
copper and aluminum conductors. When using aluminum conductors it is important to prepare the conductors
properly to prevent oxidation and overheating. Always use industry approved best practices to install these
conductors. Suggested steps to prepare and terminate the aluminum conductors are listed below.
a) Strip insulation from the aluminum conductor.
DOCR-071030-A (10/7/2022)
Figure 3-37 Bottom of Wiring Box: External Grounding Point Location
Table 3-12 Specification of AC Breaker Selection
MINIMUM AC OCPD
Use of Aluminum Conductors
NOTICE!
MAXIMUM AC OCPD
90A
50KVA= 80A
55KVA= 90A
100A
125A
110A, suggested
153A, actual
125A, suggested
152A, actual
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