molded case circuit breakers - Eaton Canada

206
STARTERS (MEDIUM VOLTAGE)
SJ Vacuum AMPGARD Assemblies, Retrofit Kits
and Renewal Parts
PRODUCT DESCRIPTION
Originally a Westinghouse Product
The SJ Vacuum Contactor was designed
and engineered specifically for use in
AMPGARD starters. The contactor is a
low-chop design that permits application
matching of the starter to the motor for
2200V - 7200V and ratings of 400A and
800A. The 400A contactor is available in
both slide-out and roll-out configurations.
The 800A contactor is available in the rollout
design only. The SJ AMPGARD is a
horsepower specific starter design that
uses the component-to-component circuitry
concept. The full-voltage 400A rating
in a NEMA 1 enclosure is 36 inches
wide x 30 inches deep x 90 inches high.
These 400A starters are mounted one or
two high per structure. The 800A rating in
an enclosure is 40 inches wide x 30 inches
REPLACEMENT CAPABILITIES
Renewal and Replacement Parts for
SJ Design Starters
Refer to RPD 8855V or RP.48J.01.T.E for
identifying the parts needed. Refer to Price
List/Style Number Index 8855 for prices by
style number and old style number-to-new
style number cross-reference information.
deep x 90 inches high in a one-high
construction for a full voltage starter.
Ratings (max.)
400A, 800A
3000 HP @ 2500V; 5500 HP @ 5000V;
8000 HP @ 7200V
Chronology
The SJ vacuum design AMPGARD starter
was introduced in 1982 with the 400A
rating. The 800A rating followed in 1987.
With the introduction of the vacuum
contactor, the air break starter has been
gradually phased out and is rarely specified
in an assembly. The starters are built
in Asheville, NC.
Synchronous Control Retrofit Using
Mark V Solid-State Control
Replace existing relay type synchronous
control with state-of-the-art solid-state
Mark V control. Refer to pages 186-189,
192 of this publication for synchronous
motor field control panels.
TECHNOLOGY UPGRADES
Vacuum Starter Retrofits IQ Retrofit Kits
400A Vacuum Starter Retrofit Kit
IQ 1000 II and Data Plus II Retrofit Kit
Complete full-voltage, non-reversing, This kit includes parts necessary to retrofit
induction, vacuum AMPGARD motor starter, IQ products into AMPGARD starters very
400A, 7200V max., for mounting in exist- easily. The IQ devices are included and are
ing 36-inch wide enclosure. Includes main pre-wired to terminal blocks on the
contactor, isolation switch three power drawout panel.
fuses, IQ 1000 II motor protection without
RTD module, three current transformers,
vertical bus, high- and low-voltage doors,
and welded cell assembly for mounting in
existing 36-inch wide customer enclosure.
Refer to RPD 8855C for more details.
Included: Typical starter schematics, 400A
Low-voltage door with three
device panels
Works-in-a-drawer panel with
terminal blocks
IQ 1000 II (without RTD)
Style No. 2147A95G01 (Slideout)
IQ Data Plus II (with MWH
Style No. 2147A95G02 (Rollout)
counter)
Style No. 2147A95G37
Low Resolution Photo
Current Transformer Shorting
Terminal Blocks (When Specified)
Routing of Control Wire in Wire Channel
Interposing Control Relay
DIN – Rail Mounted
Wiring is Protected Between Low Voltage
Panel and Hinged Low Voltage Door
Low Voltage Panel Completely Extended
IQ 1000 II/Data Plus II Retrofit
Add-on Vacuum Starter Structures
New add-on vacuum structures as an
extension to the SJ type structure may be
connected directly to the main bus without
a transition section. Contact your local
Cutler-Hammer Field Sales Office.
Replacement Vacuum Contactors
New replacement vacuum break contactors
are available for all SJ model ratings.
IQ Surface Mounted Enclosure
For mounting IQ family products. Includes
drilling for one IQ device and three 30mm
devices. Supplied with or without IQ and
PB devices. Refer to RPD 8855C for more
details.
IQ Floor Mounted Enclosure
For mounting IQ family products. Includes
standard AMPGARD structure construction
to be used as a line-up extension. Each
12-inch wide x 90-inch high x 30-inch deep
section comes with two doors, each with a
works-in-a-drawer drawout panel. Each
door has three standard IQ cutouts with
device panels. Supplied with or without IQ
and PB devices. Refer to RPD 8855C for
more details.
Rear of 1/4 Turn Fastener
Predrilled Holes for
Additional Control Devices
IQ-1000 Rear View
Indicating Lights and
Pushbuttons Rear View
Blank Device Panel
NOTE: Low Voltage Door is
Hinged to Slide Out Control Panel
March 2001