MiniBreak Switch
11/12/02
3:25 PM
Page 1
MiniBreak™Load Interrupter Switch
For Individual Metal-Enclosed
Medium Voltage Switchgear
200 A, 5.5 kV
MiniBreak Switch
11/12/02
3:25 PM
Page 2
T H E
C O M P A C T
S O L U T I O N
A
s the leading
manufacturer of medium
voltage load interrupter
switches, Square D/Schneider
Electric has set the standard for
performance, protection and
dependability. Our MiniBreak™
Medium Voltage Load
Interrupter is well known in the
industry for its quality,
construction, compact design
and low cost. We’re dedicated
to serving your needs. Our
engineering and support staff
is considered the best in
the industry.
The Right Medium
Voltage Solution
The MiniBreak Load
Interrupter Switch,
available from stock for
quick shipment,
provides compact and
economical switching
for currents up to 200
A at 5.5 kV. The
enclosure is made of
tamper-resistant
11-gauge steel. Its
compact design and
light weight make it
easy to handle and an
ideal choice for
installations in which
space is limited.
Fully tested to ANSI
and CSA standards,
the MiniBreak Load
Interrupter Switch
features a short time
rating of 12.5 kA for
two seconds. It also
complies with category
B of the UL construction standards.
Available in fused and
unfused versions, the
switch is perfectly
suited for most 5.5 kV
200 A applications.
■
NEMA Type 3R
enclosure (for
indoor/outdoor
applications)
■
Optional key
interlocking
The MiniBreak Load
Interrupter Switch is
designed to be used
with SQUARE D
current-limiting fuses,
as well as any threeinch diameter fuse
with twelve-inch long
barrels rated to 200 E.
■
A transformer
primary disconnect
■
A motor disconnect
■
An individual service
entrance equipment
■
An incoming line
and feeder
distribution device
The Right
Features
■
UL Listed
■
Knife-type air
interrupter
■
Precise contact
alignment
■
Provision for
current-limiting
fuses
■
Quick-make, quickbreak operating
mechanism
■
Mechanically
interlocked fuse
access door
■
Viewing window for
visible inspection
■
Wind-resistant
door stay
■
Provision for
padlocking handle
in OFF position
Typical
Applications
The MiniBreak Load
Interrupter Switch is
widely used in the
following applications as:
The design of the
MiniBreak Load
Interrupter Switch
makes it ideal for
use on oil rigs, in
automotive facilities
and other individual
settings.
MiniBreak Switch
11/12/02
3:26 PM
Page 3
M I N I B R E A K ™
L O A D
I N T E R R U P T E R
S W I T C H
Standoff
insulator
Arc chutes
Cable lugs
Operating
handle with
position
indication
Operating
shaft
Main
interrupter
blade
Blade
connector
Operating
mechanism
Optional fuses
Interphase
barriers
MiniBreak Switch
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3:26 PM
Page 4
D I M E N S I O N S
25.15
25.20
25.20
25.15
639
640
640
639
2.20
20.75
56
527
SINGLE LINE DIAGRAM
Line Side
Aÿ
Bÿ
Cÿ
23.78
604
18.38
467
Load Side
2.70
66.00
1674
47.52
47.52
1207
1207
29.00
737
Top View
SHADED AREA =
RECOMMENDED
CONDUIT ENTRANCE
69
Dual Dimensions: INCHES
Millimeters
15.35
390
Front View
Section View
(fused)
Ratings
■
Maximum design voltage: 5.5 kV
■
Maximum continuous current: 200 A
■
Magnetizing current : 4 A @ 8-10%
power factor
■
Maximum fault closing: 20 kA asymmetrical
■
Short time rating (2 sec): 12.5 kA
■
Maximum fault closing with fuses up to
63 kA symmetrical
■
Power frequency withstand: 19 kV
■
Basic impulse level (BIL): 60 kV
■
Load breaking (100 operations): 200 A
@ 70-80% power factor
■
Mechanical life expectancy (no-load
operations): 750
Section View
(non-fused)
The Right Service and Support
As the country’s leading supplier of electrical
distribution equipment, Square D/Schneider
Electric is in a unique position to provide
whatever is required to meet your needs.
Whatever your application, service and support
are vital components of a successful installation
and continuing operation. Square D/Schneider
Electric has one of the largest engineering and
service teams in the industry to provide a level of
support unmatched by any other manufacturer.
For additional information on the MiniBreak™ Load
Interrupter Switch contact your local Square D
sales representative, or call 1-888-SQUARED.
www.SquareD.com
Order No. 6042BR9401R9/02
© 2002 Schneider Electric
All Rights Reserved