Medium Voltage
Substation Circuit
Breakers
Powersub Type EVR
Vacuum Circuit Breaker
®
EVR Breaker – Model 0
EVR Breaker – Model 1
Square D Services Medium Voltage Substation Circuit Breakers
Advanced Technology for Leading Reliability
For over 100 years, Square D products from Schneider Electric have been
setting standards in quality for the electric industry and serving utilities with
highly reliable products. By combining the latest developments in circuit
breaker technology with world-renowned quality, the Powersub Type EVR
Vacuum Substation Circuit Breakers from Square D Services are the most
advanced medium voltage circuit breakers available.
EVR Breaker - Model 0
• Compliance to ANSI Standards
Designed and tested to comply with or exceed ANSI and
IEEE standards for outdoor circuit breakers.
• ISO 9001 Certification
Designed and manufactured in a facility that is Quality Systems
Certified by Underwriters Laboratories, Inc. to ISO 9001.
Benefits
• High-speed operation
Interrupting time of 3 cycles or less
• Long life
Hermetically sealed interrupters protect contacts from
corroding elements and contamination.
EVR Breaker - Model 1
• Ease of maintenance
Interrupter assemblies and contact wear indicators accessible via a bolted panel.
• Reliability A minimum of moving parts on the motor-driven, spring-charged
Type RI mechanism.
• Durability
Robust design tested to the highest IBC-2000 seismic standard.
Other seismic standards may be evaluated upon request.
• Flexibility
Standard adjustable heights in 3” increments.
• Component Commonality
Utilizes Type RI operating mechanism / coils / motor, which are
commonly used among many Square D medium voltage circuit breakers.
Standard Features
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2
Window for viewing status indicators and operation counter.
Ground pads located on both sides of breaker. A #4 cable connects from the roof and HV/LV compartment to the ground pads to insure a
solidly grounded enclosure.
Painted adjustable legs with galvanized base channels.
All external hardware is stainless steel.
Optimized relay panel (32 5/8” W x 33 7/8” H) for instrumentation
(model 1 only).
12 pole auxiliary switch (6 ‘a’ & 6 ‘b’ contacts), latch check switch
and emergency cutout switch standard.
All outer doors latch open at approximately 120 degrees.
Type RI mechanism with integral manual charging handle.
Breaker Legend, EVR - Model # 0 and 1
1 - High Voltage Compartment (HV)
2 - Low Voltage (Relay) Compartment (LV)
3 - Adjustable Legs
4 - Cable Termination Bushing
5 - Current Transformers
6 - Vacuum Interrupter Bottle
7 - Mechanism
8 - Auxiliary Switch
9 - Control Mounting Panel
10 - Removable Filter Vent Covers
11 - Hinged Removable Door w/Padlockable Handles (HV)
12 - Hinged Removable Door w/Padlockable Handles (LV)
13 - Hinged Removable Door Fastened to Assembly
14 - Rear Access Panel Fastened to Assembly (HV)
15 - Vented Rear Access Panel Fastened to Assembly (LV)
16 - Galvanized Base Channel
Powersub Type EVR Vacuum Circuit Breaker
Powersub Type EVR Medium Voltage Substation Circuit Breaker
Additional Features and Ratings
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15.5kV, 1200A, 25kA, 110kV BIL.
10,000 operations at load current.
Breaker element is a modular design for ease of replacement.
Total height adjustability of 24”.
Double bent roof gives greater phase to phase clearance while maintaining a small footprint.
One pad-lockable handle on each outer door.
Hinged doors utilized on common access areas.
The EVR is available with or without a relay
compartment. Model 0 does not have a relay
compartment, and is intended for applications
in which the relay will be mounted remotely.
Model 1 includes a relay compartment, and can
be provided with the relay of your choice.
EVR Vacuum Circuit Breaker Ratings
Substation Circuit
Breaker Catalog
Number
Voltage
Max.
kV rms
Short
Circuit
Current
kA rms
Rated
Continuous
Current
EVR 1 08 11 12
12.5
800
EVR 1 12 11 12
1200
EVR 1 06 11 16
600
EVR 1 08 11 16
EVR 1 06 11 20
EVR 1 08 11 20
16
800
3 Second
Current
Carrying
Capability
kA rms
Close &
Latching
Capability
kA Peak
12.5
12.5
32
16
16
43
20
20
54
25
25
68
1200
15.5
Full Wave
Lightning
Impulse
Withstand
kV Crest
50
600
20
800
EVR 1 12 11 20
2u sec
Impulse
Withstand
kV Crest
Rated
Permissible
Tripping
Delay
Y Seconds
110
142
2
1200
EVR 1 06 11 25
EVR 1 08 11 25
Low
Frequency
Withstand
kV rms
600
EVR 1 06 11 12
EVR 1 12 11 16
Max.
Symmetrical
Interrupting
Capability
kA rms
600
25
800
EVR 1 12 11 25
1200
Square D Catalog Numbering Scheme (example)
Catalog Number
EVR
1
12
11
16
0
Type
Voltage Class
Model
Interrupting Rating
BIL Rating
Continuous Current Rating
Table 1: Catalog Numbering Scheme
Type
Voltage Class
Continous
Current Rating
BIL Rating
Interrupting Rating
Model
EVR
1 = 15.5 kV
06 = 600 A
08 = 800 A
12 = 1200 A
11 = 110 kV
12 = 12.5 kA
16 = 16 kA
20 = 20 kA
25 = 25 kA
0 = No relay compartment
1 = With relay compartment
3
Dimensions 15kV, 110 kV BIL Type EVR
EVR (no relay compartment – model 0)
Notes:
• Approx. weight: 1850 lbs.
• All external hardware is
stainless steel.
• All dimensions are in
inches unless otherwise
specified.
Breaker rear
Control conduit
entrance (3” x 8”),
customer installs
cutouts in cover
plates as needed
• Adjustable leg has range
of 24 inches.
• Cross brace must be
installed during
installation.
• All dimensions are typical.
Control conduit
entrance (3” x 8”),
customer installs
cutouts in cover
plates as needed
• Diagrams are not
for construction.
Breaker front – foundation plan
EVR (with relay compartment – model 1)
Notes:
• Control panel with access terminal blocks is
mounted on right wall of low voltage compartment.
• Approx. weight: 2000 lbs.
• All external hardware is
stainless steel.
Breaker rear
• All dimensions are in
inches unless otherwise
specified.
Control conduit
entrance (8” x 14”),
customer installs
cutouts in cover
plates as needed
• Adjustable leg has range
of 24 inches.
• All dimensions are typical.
Control conduit
entrance (8” x 14”)
Customer install
cutouts in cover
plates as needed
• Diagrams are not
for construction.
Breaker front – foundation plan
Square D Services from Schneider Electric
offers a broad range of service solutions
to support any manufacturers’ electrical
distribution equipment. Whether the solution
is refurbishment, replacement, maintenance
or recommendations to optimize your existing
system, our nationwide network of qualified
experts offers a complete service package.
For more information call 888-SQUARED or visit
us online at www.SquareD-Services.com.
©2009 Schneider Electric. All rights reserved.
Why Choose Square D Services?
Schneider Electric – North American Operating Division
9870 Crescent Park Drive
West Chester, OH 45069
Tel: 513-777-4445
Fax: 513-755-5028
1910BR0901
This document has been
printed on recycled paper.
8-09