40.5kV E-VAC MV Vacuum Circuit Breaker - 电子书在线预览、各类电子书在线制作-云展网平台

40.5kV E-VAC Medium Voltage Vacuum Circuit Breaker

Automotive

Aerospace

Electrical Truck

Hydraulics

Automotive

Aerospace

Electrical Truck

Hydraulics

Powering business worldwide

Next generation

transportation

Eaton is driving the

development of new

technologies – from hybrid

drivetrains and emission control

systems to advanced engine

components – that reduce fuel

consumption and emissions in

trucks and cars.

Higher expectations We continue to expand our

aerospace solutions and

services to meet the needs of

new aviation platforms,

including the high-flying light jet

and very light jet markets.

Building on our strengths

Our hydraulics business

combines localised service and

support with an innovative

portfolio of fluid power

solutions to answer the needs

of global infrastructure projects,

including locks, canals and

dams.

Powering Greener Buildings

and Businesses

Eaton’s Electrical Group is a

leading provider of power

quality, distribution and control

solutions that increase energy

efficiency and improve power

quality, safety and reliability.

Our solutions offer a growing

portfolio of “green” products

and services, such as energy

audits and real-time energy

consumption monitoring.

Eaton’s Uninterruptible Power

Supplies (UPS), variable-speed

drives and lighting controls help

conserve energy and increase

efficiency.

Eaton delivers the power inside hundreds of products that are answering the demands of today’s fast changing world. We help our customers worldwide manage the power they need for buildings, aircraft, trucks, cars, machinery and entire businesses. And we do it in a way that consumes fewer resources.

MV switchgear technology

is in our DNA

Eaton’s range of

SF6 free switchgear

for Medium Voltage

Eaton Corporation is a worldwide leader in the

design, manufacture, and sale of safe, reliable

and high-performance medium voltage power

distribution equipment in accordance with IEC,

ANSI and GB / DL standards

Complete Global Medium Voltage Switchgear Solutions

Eaton, a premier leader in designing and manufacturing power

distribution and protection equipment in the electrical industry,

offers a comprehensive range of medium voltage (MV) solutions

to meet the needs of virtually every application. From products

that feature cutting-edge design that allow for easy access,

maintenance and space savings, to arc-resistant products that

enhance safety, Eaton’s medium voltage solutions provide a

variety of products for every need. Additionally, Eaton’s global

service network provides maximum customer support in all

regions of the world.

As one of the few completely vertically integrated and diversified

industrial manufacturers in the world, Eaton designs not only MV

assemblies, but also the key components that comprise the MV

solutions – from steel housing and circuitbreaker compartments

to vacuum interrupters, circuit breakers, bus systems and fuses.

Eaton’s MV heritage, strengthened by acquisitions such as

Westinghouse DCBU, Cutler Hammer, MEM and Holec, has

resulted in breakthrough MV technologies and numerous

international patents over the years.

Part of Eaton’s complete electrical PowerChain Solutions

– which help businesses minimize risks while realizing greater

reliability, cost efficiencies, capital utilization and safety –

Eaton’s medium voltage equipment meets all applicable

standards and certifications such as IEC, NEMA / ANSI, GB / DL,

UL, IEEE, KEMA and CSA.

When it comes to medium voltage solutions, you can trust the

one name with a long history of proven performance: Eaton.

Eaton Electrical Sector

Eaton Electrical Sector, as the

largest business unit of Eaton

Group, has high reputation in the

manufacturing and services

regarding electrical control, power

distribution, industrial control, and

power quality. It also provides

excellent services and advance

products in research, design,

manufacturing, and applications.

Eaton Electrical Sector has a lot of

famous brands, e.g., Westinghouse,

Holec, Cutler-Hammer and

Powerware. Meantime, it inherits

and carries forward the

technologies and engineering

experience of those brands. Eaton

continues to insist on the traditions

behind those brands and will carry

forward their unique advantages to

provide customers in China and the

rest of the world with effective

solutions and services.

Eaton has been engaging in circuit

breaker manufacturing for more than

eight decades. Over the past eight

decades, Eaton has been a leader in

the global circuit breaker market in

terms of technology and philosophy.

Nowadays, the green world has strict

requirements on medium voltage

power switching. Lowered resistance

system configuration has imposed

stricter requirements on current

continuity and breaking capacity. The

requirements on compactness and

cooling are getting higher and higher.

The most ideal solution is a medium

voltage circuit breaker that is

environment friendly and capable to

switch on/off large currents reliably,

and does not need unreliable cooling

or forced air cooling.

Eaton integrates its vacuum

technology, design achievements, and

more than a century of rich

experience of Westinghouse,

Cutler-Hammer and Holec.

Eaton had been engaging in vacuum

interrupter R&D in the 1920s and

developing commercial vacuum

circuit breakers in the 1960s. So far, it

has accumulated more than 70 years

of experience in the design and

manufacture of circuit breakers and

switch cabinets.

E-VAC vacuum circuit breaker, which was elaborately designed and

manufactured by Eaton Electric Group, is an indoor medium voltage vacuum

circuit breaker employing encapsulation insulation. The product complies with

the national standard GB/T 1984 and international standard IEC 62271-100,

and is the best choice for control and protection of medium voltage

transmission and distribution systems. Eaton provides floor mounted

draw-out type and fixed type circuit breakers to meet varied needs of

customers. Having passed high-altitude tests, those products are suitable for

use in high-altitude areas.

Eaton is a leader in power

distribution

40.5kV E-VAC Medium

Voltage Vacuum Circuit Breaker

Product model

IEC/GB Circuit Breaker

Eaton Circuit Breaker Series Rated Voltage (KV) Rated Current (A)

Rated Short-circuit Breaking Current (kA)

Spring Operating Mechanism

E - VAC - 40.5 / T □ - □

• The ambient temperature shall not be higher than 40℃ and not lower

than -15℃

(If the temperature exceeds this limit, please contact Eaton Company.);

• The altitude shall not be higher than 1,000m; If the altitude exceeds

1,000m please contact Eaton Company.

• The average relative humidity of the air shall not be greater than 95%;

the monthly average humidity shall not be higher than 90%; the

average saturated vapor pressure shall not be greater than

2.2×10-3MPa; and the monthly average vapor pressure shall not be

greater than 1.8×10-3MPa; It’s required to prevent condensation in

high-humidity environments.

• Max endurable earthquake intensity: Magnitude 8;

• Keep the product away from fire, explosion, serious pollution, chemical

corrosion, severe vibration and other hazards.

Operating environment: Product features

• High-end 3D computer-aided design (Pro-Engineer) and dynamic

simulation and optimization design (Pro-Mechanical).

• The optimized design of electromagnetic field distribution is capable to

minimize partial discharge and local overheating.

• State-of-the-art Eaton vacuum interrupter with high-performance

provides excellent large-current and high-breaking performance.

• With superior and reliable solid-sealed insulation performance, the

product has passed the condensation test, is suitable for reliable

operation in harsh environments, and has a larger creepage distance

and electrical clearance which are above the IEC and GB standards.

• Reliable grounding method ensures the grounding continuity of the

circuit breaker from the working position to the test position.

• High compatibility and multi-scheme design of the product is fully

compatible with various mainstream cabinets around the world.

• Rich and diverse accessory solutions can meet varied needs of

customers.

Encapsulated Pole

The best choice for medium voltage power distribution

system control and protection

Upper Outlet

Vacuum Interrupter

Flexible Coupling

Lower Outlet

Creepage Extender

The operating mechanism of the circuit breaker is a spring energy storage

mechanism with excellent performance, which is compact. It is equipped

with manual energy storage device and electric energy storage device, which

can realize the automatic reclosing function.

The circuit breaker is equipped with manual opening and closing operation

button, circuit breaker opening and closing position indicator, spring

mechanism energy storage status indicator,

switch operation times counter, shunt release, position auxiliary switch,

energy storage motor, shunt release, anti-pumping relay.

The following accessories can also be provided according to specific

requirements: undervoltage release

The product is proudly certified under the China Environmental Labeling

Product Certification (Type II) and has also obtained the Product Carbon

Footprint Certification.

The 3AS4 Vacuum Circuit Breaker meets stringent quality and compliance

standards, ensuring environmental responsibility throughout its entire

lifecycle—from production and usage to consumption and disposal. With its

low toxicity, minimal environmental impact, and resource-saving design, it

delivers significant ecological advantages while supporting sustainable

development.

Main technical parameters of product

Item Unit Value

Rated voltage

Rated power frequency withstand voltage (1 min)

Rated lightning impulse withstand voltage (peak value)

Rated frequency

Rated current

Rated short-circuit breaking current

Rated short-time withstand current (4s)

Rated short-circuit making current(peak value)

Rated peak withstand current

Power frequency withstand voltage for secondary circuits (1 min)

Rated single/back-to-back capacitor bank breaking current (3)

Rated capacitor bank inrush making current (3)

Opening time(rated voltage)

Closing time(rated voltage)

Mechanical life

Breaking times of rated current

Breaking times of rated short-circuit current

Rated cable-charging switching current

Permissible wearing accumulated depth for movable and fixed contacts

Three-phase contact opening and closing asynchronism

Rated operating voltage for closing

Rated operating voltage for opening

Rated voltage of energy charging motor

Energy charging time

classification

Rated operating sequence

40.5

95(2)

185(2)

50/60

1250 1600 2000 2500 3150 4000A(1)

31.5/40

82/104

2000

630/400

20 (Frequency not greater than 4250 Hz)

20~50

35~70

10000(2)

30(2)

≤2

AC 110/220 DC 110/220

≤15

C2-E2-M2

O-0.3s-CO-15s-CO

times

Note: (1) Forced cooling is required for 4000A.

(2) For higher parameters, pls contact Eaton company.

(3) Rated parameters are provided only when required.

Rated parameters of operating mechanism:

Technical parameters of switching electromagnet coil

Name

Rated working voltage (V)

Rated input power of motor (W)

Normal operating voltage range

Energizing time under rated working voltage

Name

Rated working voltage (V)

Rated working current of closing coil (A)

Rated working current of opening coil (A)

Normal working voltage range*

If you have any special needs, please contact us.

*≥2000A or 40kA

Parameters

AC,DC220

80 (90*)

85%-110% of rated voltage

≤15s

AC,DC110

80 (90*)

85%-110% of rated voltage

≤15s

AC220, DC220

1.0

0.9 (1.6*)

AC110, DC110

2.0

1.8 (2.6*)

Closing: 80%-110% for rated operating voltage

Opening: 65%-110% for DC rated operating voltage; 85%-110% for AC rated operating voltage

Opening will not occur if less than 30% of rated operating voltage

Storage

Place the product in a dry and

ventilated place and keep it away

from serious pollution, chemical

corrosion, and severe vibration.

Dimensions of withdrawable E-VAC circuit breaker(unit:mm)

Rated shortcircuit breaking current 25kA~40kA P A

280

300

440

892

1092

1292

840

1040

1240

718

758

1038

850

1050

1250

B M N

1250

1600

2000

Ø49

Ø55

Ø79

Rated current (A) Fixed contact G

Ground bar

Dimensions of withdrawable E-VAC circuit breaker(unit:mm)

Rated shortcircuit breaking current 31.5kA~40kA P A

300

440

1092

1292

1040

1240

758

1038

1050

1250

B M N

3150NC (1)

3150FC

Ø109

2500 Ø109

4000FC (2)

(1) 3150FC contain cooling rack.

(2) The 4000FC circuit breaker can be equipped with a fan. If needed, please contact us.

Ø109

Rated current (A) Fixed contact G

Ground bar

Cooling rack(1)

280

300

440

840

1040

1240

718

758

1038

850

1050

1250

Included

Not Included

Optional silicone sleeve and sealing plate

B M N L1, L2 Insulating Partition Option

Dimension and projection

direction can be customised

according to customer

requirements.

(1) 3150FC contain cooling rack.

(2) The 4000FC circuit breaker can be equipped with a fan. If needed, please contact us.

(3) If you need interface size, please contact us.

Dimensions of fixed E-VAC circuit breaker(unit:mm)

Sealing plate(optional)

Insulating partition

Sealing plate(optional)

Rated Current(A)

1250~2000

2500~4000

X Y Z

100

A Direction

X 4-M12

Cooling rack(1)

Internal electrical wiring diagram for withdrawable E-VAC circuit breaker

The diagram shows the circuit breaker in the test position, open, and energy discharged states Optional wiring installations: Jumper Jumper JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9

√

/ Operating power supply selection: AC/DC 220V AC/DC 110V JP10 JP11

√

Note: “/” stands for closed; “

√ ” stands for open.

HQ: Closing coil TQ: Opening coil R0~R1: Resistance M: Charging motor

Motor charging circuit Closing circuit Interlock circuit Opening circuit

With locking Without locking With locking Without locking

Configuration With anti- bounce Without anti-bounce Jumper state Operating power supply Note: When DC power supply is used, the polarity in the dotted boxes must be the same. S9: S8: S2: S1: QF: V2~V4: Y1: K0: JP1~JP11:Auxiliary switch (when the E-VAC circuit breaker is in the working position) Auxiliary switch (when the E-VAC circuit breaker is in the test position) Auxiliary switch Auxiliary switch (switched on after the closing spring is charged) Auxiliary switch (switched during closing or opening operation) Bridge rectifier (Canceled for DC) Interlock coil (optional) Anti-pumping relay (optional) Jumper

Internal electrical wiring diagram of fixed E-VAC circuit breaker

In the following figure, the E-VAC circuit breaker is opened and spring is not fully charged. Optional wiring installations: Operating power supply selection: JP8 JP9

√

Note: “/” stands for closed; “

√” stands for open. AC/DC 220V AC/DC 110V

JP10 JP11

√

With locking With locking Without locking Without locking With anti- bounce Without anti-bounce

Jumper

Configuration Jumper state Jumper Operating power supply

Note: 1. When DC power supply is used, the polarity in the dotted boxes must be the same. 2. During installation and commissioning, ensure that S3 is switched reliably after the mechanical HQ: TQ: M: S2: S1: S3: QF: K0: RO-R2: Y1: V2~V4: JP8~JP11: Closing coil Opening coil Charging motor Auxiliary switch Auxiliary switch (switched on after the closing spring is charged) Auxiliary switch (switched on after mechanical interlock is enabled and switched off if mechanical interlock is disabled) Auxiliary switch (switched during closing or opening operation) Anti-pumping relay (optional) Resistance Interlock coil (optional) Bridge rectifier (Canceled for DC) Jumper

Motor charging circuit Closing circuit Interlock circuit Opening circuit

Mechanical interlock

E-VAC vacuum circuit breaker ordering guide

2. E-VAC Embedded Serial Vacuum Circuit Breakers Parameters

3. Technical Parameters of Spring Actuator Mechanism

4. Optional Configuration (the standard configuration includes anti-pumping device;

in case you don’t want anti-pumping function, please indicate.)

□ E-VAC (Withdrawable) □ E-VAC (Fixed)

Rated Short Circuit

Breaking Current (kA)

Rated Operating Current (A)

Opening Power Supply (V)

Closing Power Supply (V)

Charging Motor Power Supply (V)

□ Closing Interlock Device

□ Position Interlock

□ Anti-pumping Relay

□ Under-voltage Tripper

□ Handle

Note: The product technical parameters are subject to change without further notice. Please confirm with Eaton before order.

Circuit Breaker Phase

Spacing (mm)

1. Circuit Breaker Model

□ 25

□ 31.5

□ 40

□ 1250

□ 1600

□ 2000

□ 2500

□ 3150

□ 4000

□ DC110 □ AC110 □ DC220 □ AC220

□

□Quantity required

□ 280

□ 300

□ 400

Eaton is an intelligent power management company dedicated to

protecting the environment and improving the quality of life for people

everywhere. We make products for the data center, utility, industrial,

commercial, machine building, residential, aerospace and mobility

markets. We are guided by our commitment to do business right, to

operate sustainably and to help our customers manage power ─

today and well into the future. By capitalizing on the global growth

trends of electrification and digitalization, we’re helping to solve the

world’s most urgent power management challenges and building a

more sustainable society for people today and generations to come.

Founded in 1911, Eaton has continuously evolved to meet the

changing and expanding needs of our stakeholders. With revenues of

nearly $25 billion in 2024, the company serves customers in more

than 160 countries. Eaton entered the Chinese market in 1993 and

has grown significantly since then. In 2004, Eaton moved its Asia-Pacific headquarters from Hong Kong to Shanghai. Today, Eaton has nearly

8,000 employees and 19 manufacturing facilities in China.

For more information about Eaton China, visit www.eaton.com.cn

Eaton is a registered trademark

of Eaton Corporation.

All trademarks are property of their

respective owners.

Printed in China

CHICA20200XXX_EN

December 2025

Eaton Corporation

No.3, Lane 280, Linhong Road,

Changning District,

Shanghai, China 200335

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