Incoming Line; Potential Transformers And Fuses; Type Lbs Loadbreak Switch - Eaton Cutler-Hammer AMPGARD Technical Data Manual

Incoming Line

Depending on the size and number of incoming cables, an incoming
line enclosure may be necessary. Different designs are available for
incoming power for top or bottom entry.
The addition of incoming line metering requires a 36-inch (914 mm)
wide structure in lieu of a 24-inch (610 mm) wide structure.
Bus for Top or
Bottom Entry
Incoming Power
Typical 24-Inch (610 mm) Wide Incoming Line Structure
Potential Transformers, Control Power Transformer
Disconnect and Fuses
Bus connected potential transformers and/or control power trans-
formers are mounted in a 20 inch (508 mm) high assembly that
includes a disconnect and primary fuses. The assembly can be
mounted in a 24 inch (610 mm) or 36 inch (914 mm) wide structure.
Potential Transformers, Control Power Transformer and Fuses Mounted
in a Disconnect Assembly, Height 20 Inches (508 mm)
EATON CORPORATION Cutler-Hammer Chiller Starter (AMPGARD) Technical Data TD02003003E

Type LBS Loadbreak Switch

For application needs with loads rated 600 or 1200 amperes at 2300
to 6600 volts, AMPGARD is available with the Type LBS loadbreak
switch. This device, a 3-pole, manually operated, quick-make, quick-
break switch, is used primarily as a disconnect switch in ac power
systems. This switch is fixed mounted and will fit in one-half of a
standard 80-inch (2032 mm) high, 36-inch (914 mm) wide vertical
structure. Power fuses up to 450E amperes can be mounted within
the half-high structure. 600E or 750E fuses require an additional half-
structure, 1100E or 1350E fuses require an additional full structure.
Mechanical interlocks are incorporated so that the door cannot be
opened when the switch is on, and when the door is open the switch
cannot be closed. A safety screen is supplied behind the switch door.
The Type LBS switch can be supplied with a total of four electrical
interlocks.
Type LBS Load Break Switch Shown in Upper or Lower Half of
36-Inch (914 mm) Wide Structure, Height 40 Inches (1016 mm)
Type LBS Load Break Switch Shown with Safety Screen Removed
Copyright 2006 13