ABB EntelliGuard AKD-5 Installation Manual page 12

spring loaded sliding "picture frame". These are draw out letter code "B" i.e. AKR-4B-30 which will be
replaced by an EntelliGuard R with a catalog # beginning with R5.
AKD-8—AKR30H/AKR30L/AKR50H/AKRT50H
The 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.
AKD-10—WPS-08, WPH-08, WPX-08, WPS-16, WPH-16, WPS-20
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 Switchboard plants initially shipped "WS" style breakers and later
shifted to "WE" style breakers to be consistent with Switchgear from Burlington, Iowa.
10 EntelliGuard R Circuit Breaker Retrofill AKD-5 Installation Manual DEH-41547