Basic Installation and Operation Guide
JK Series 720 Controllers
TOSHIBA
B. Vacuum Contactor
The Type HCV-6KAU vacuum contactor (Fig. 25) used in Toshiba
JK 720 ampere controllers is a compact, fix-mounted device. It is
mounted to the floor of the controller compartment, beneath the
isolation switch.
Switching occurs entirely within vacuum bottles, which results in
long life with virtually no maintenance. The contactor is
mechanically interlocked with the isolation switch so that the switch
may not be opened or closed unless the contacts of the vacuum
contactor are open.
Fig. 25 Type HCV-6KAU Vacuum
Contactor (Note: Clear Cover Not
Included In Assembled Gear)
C. Outgoing Load Connections
Connections for outgoing load cables are located at the left side of
each controller compartment (Fig. 26). Cables may enter the
controller from either the top or bottom of the enclosure, at the points
indicated on the outline drawings furnished with the equipment.
Up to two 500MCM shielded or non-shielded cables per phase can
be accommodated entering either from the top or bottom of the
enclosure. Space is provided for installation of termination kits
(stress cones) and user-supplied one- or two-hole compression type
connectors.
Fig. 26 Load Cable Connections
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