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EntelliGuard R Circuit Breaker Retrofill AKD-8 Installation Manual DEH41549 R05
The AKR-75/100 breakers used in AKD-6 have a shallow 1” steel front escutcheon and vertical primary
fingers. They are drawout letter code”C” i.e. AKR-4C-75 and will be replaced by EntelliGuard R with catalog
number beginning with R2
AKD-8—AKR-30/30H/30L, AKR-50/50H/T50H, AKR-75/75H, AKR-100, AKR125
AKD-8 was manufactured in Salisbury, NC from 1980 to 1984 and in Burlington, Iowa from 1984 to 1999. It
was mostly replaced by AKD-10 in 1999 to 2000 but was available thru 2015. Model 1 and 2 have extruded
vertical bus. Model 2 was introduced in 1983 to accommodate revised wire harness routing. Model 3 was
introduced in 1991, using a flat bar vertical bus. AKR breakers use MicroVersaTrip 9, MVT RMS9, EPIC, MVT
Plus, MVT PM, or EntelliGuard TU trip units. Aluminum bus was removed from the design in 1996 in favor of
the standard tin-plated copper bus (silver plated optional).
The AKR-30/50/50H/T50 breakers used in AKD8 have 5” deep plastic front escutcheon& spring loaded sliding
“picture frame”. They are drawout letter code “D” i.e. AKR-7D-30. In AKD-8, most 800-2000A breakers are
“feeder” breakers with vertical lower stud & primary disconnect fingers clusters, but 800-2000A breakers
designated as “Main” breakers, have horizontal lower finger clusters, which is the same as “D” letter code
breakers sold to OEM’s. A lower stud rejection bracket differentiates between lower stud orientations.
EntelliGuard R breakers with a catalog number beginning with
R3
replace an AKR-30/50/50H/T50 breaker
with vertical lower stud & fingers. EntelliGuard R breakers with a catalog number beginning with
R6
replace
an AKR-30/50/50H/T50 breaker with horizontal lower stud & fingers.
AKR-75/100/125 circuit breakers used in AKD-8 switchgear have a 5” deep plastic front escutcheon & spring
loaded sliding “picture frame” similar to the small frame breakers. The positions DISC/TEST/CONN are shown
on the side of the front escutcheon by position of the sliding “picture frame”. The GE AKD-8 breakers have a
drawout letter code “D”. OEM versions are drawout letter code “B” and GE Switchboard versions are drawout
letter code “F”. “B” & “F” breakers only differed by appearance items. All Primary disconnect stabs are
vertically oriented. The AKR-125 is a 5000A breaker that had cooling fan. It was release in 1995. None of the
retrofill breakers utilize fans.
EntelliGuard R breakers with a catalog number beginning with
R3
replace and AKR-75/100/125 breakers in
AKD-8 switchgear. EntelliGuard R breakers with a catalog number beginning with
R6
replace and AKR-
75/100/125 breakers in OEM switchgear or switchboards or GE Switchboard which all utilize an OEM
substructure mounted on a shelf. The
R6
breakers will require a different door with a “bump inward” as the
original compartment depth is 1.4” greater than AKD-8.
AKD-10—WPS-08, WPH-08, WPX-08, WPS-16, WPH-16, WPS-20, WPS-32, WPH-32 WPX-32,
WPS-40, WPX-40, WPS-50, WPX-50
AKD-10 was manufactured in Burlington, IA from 1999 thru 2015. The switchgear compartment sizes and
main & vertical bus arrangements are the same as AKD-8 Model 3. The compartments have pull-out rails.
AKD-10 uses WavePro * drawout-only style breakers. All breakers have 4 rollers which align with the
compartment rails. The secondary control wiring for all functions is connected thru either one or two 36
point secondary disconnects with gold plated contacts. Secondary control wiring terminates at fixed
standard locations on the 36 point disconnects. Each breaker has a pump style manual charging handle and
manual push OPEN and Push CLOSE buttons. The front escutcheon is 5” deep with a sliding picture frame,
but is wide enough so the trip unit and new style bell alarm are visible thru the front door of the switchgear.
EntelliGuard R breakers with a catalog number beginning with
R7
will replace a WavePro breaker with a
catalog number beginning with WE or W1. EntelliGuard R breaker with a catalog number beginning with
R8
will replace a WavePro breaker with a catalog number beginning with WS or W2. Note GE Switchboard
plants initially shipped “WS” style breakers and later shifted to “WE” style breakers to be consistent with GE
Switchgear from Burlington, Iowa. The 5000A breaker had cooling fans. None of the retrofill breakers utilize
fans.
