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In general all Original P1, Revised P1 and P2 panels that fit the standard 5.75" deep x 20" wide enclosures are interchangeable within the same height of enclosure and can use the same Type 1 fronts.
If original installation fit a 44" high enclosure - any P1 or P2 interior that fits a 44" high enclosure will fit same enclosure.
Example 1:- Existing Original P1 interior is in a 5.75"x20"x44" enclosure - this includes the subfeed space:
ref: P1C42FX250ATS
Options for replacement:
a) RP1 interior with subfeed space that fits the same 44" high enclosure - P1C42FX250ATST - may be able to use UPB interior and move branch breakers to new interior.- Main Breaker or MLO kit cannot be re-used.
b) RP1 interior without subfeed space that fits the same 44" high enclosure - P1C54FX250ATSN - 12 ADDITIONAL CIRCUITS - NO SUBFEED SPACE - Factory assembled only - Branch Breakers could be moved over if ordered with provisions.
C) P2 panel that once configured fits the same 44" high enclosure. Factory assembled only - Branch Breakers could be moved over if ordered with provisions.
Example 2:- Existing Revised P1 interior is in a 5.75"x20"x44" enclosure - this includes the subfeed space:
ref: P1C42FX250ATST
Options for replacement:
a) RP1 interior with subfeed space that fits the same 44" high enclosure - P1C42FX250ATST - same as original
b) RP1 interior without subfeed space that fits the same 44" high enclosure - P1C54FX250ATSN - 12 ADDITIONAL CIRCUITS - NO SUBFEED SPACE
c) P2 panel that once configured fits the same 44" high enclosure.
Example 3:- Existing P2 interior is in a 5.75"x20"x44" enclosure - this includes the subfeed space:
ref: P2C42QR250ATS
Options for replacement:
a) RP1 interior with subfeed space that fits the same 44" high enclosure - P1C42QR225ATST
b) RP1 interior without subfeed space that fits the same 44" high enclosure - P1C54FX250ATSN - 12 ADDITIONAL CIRCUITS - NO SUBFEED SPACE
C) P2 panel that once configured fits the same 44" high enclosure.
