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Class 8839 58M Enclosed AC Drives
Power Circuit Descriptions
149
09/2003
© 2000–2003 Schneider Electric All Rights Reserved
Barriered Bypass
Bypass configurations use isolation/bypass contactors to provide emergency full speed operation with
Class 20 overloads. When Barriered Bypass (option 910) is selected, configurations with bypass are
supplied with dual disconnects and compartmentalized construction for proper circuit isolation when
performing maintenance.
Line Reactor Options
Line reactor options are wired ahead of the drive controller and do not affect bypass operation when
supplied.
M
1–100 Hp
AC Drive
Fan
Control
CB
Disconnect
Contactor
Compartment
Barriered
Bypass
Line
Reactor
Option
CB
Disconnect
lC BC
65 KAIC
UL508C
Pic04.eps
M
125–500 Hp
AC Drive
Fans
Control
CB
Disconnect
25" Wide
Section Adder
Barriered
Bypass
1.5%
Line
Reactor
lC BC
100 KAIC
UL508C
Pic05.eps
M
AC Drive
Fan
Line
Reactor
Option
CB
Disconnect
Pic06 R1.eps
M
AC Drive
Fan
Line
Reactor
Option
CB
Disconnect
lC BC
Pic07 R1.eps