Month: July 2025

The next generation in ANSI medium voltage vacuum circuit breaker technology.

The AMVAC is the next generation of ANSI medium voltage vacuum circuit breaker, 

utilizing magnetic actuation technology to provide a more reliable and longer lasting solution to the industry. 

This is made possible by the simplicity of the magnetic actuator design features such as one moving part and built-in safety features.

Benefits

•Simple open and close coils, an electronic controller and capacitors for energy storage

•Requires the least maintenance of all medium voltage vacuum circuit breaker designs on the market today

•High number of operations between breaker servicing

•Increases safety by reducing personnel time in front of switchgear lineups

Features

•Rated at up to 15 kV, 3000 A, 50 kA and 27 kV, 2000 A, 25 kA

•Low-maintenance magnetic actuator mechanism and electronic controller

•Standard five-year warranty

•Fixed and withdrawable versions with front operating mechanism

•Stored energy operating mechanism with mechanical anti-pumping device supplied as standard

•Remote motorized racking options are available

Although many refinements have been made throughout the 80-90

year history of the medium voltage circuit breaker, there have

been only four generations of circuit breaker design. Early circuit

breakers were spring charged units with separate close and trip

springs. These units were used for older air-magnetic breakers.

The second generation used the same mechanism modified for

use with a vacuum bottle. 

Key features

•Ratings up to …15 kV, 4.000 A, …63 kA

•Fully compatible to power distribution switchgear dimensions/interfaces

•Completely type tested in accordance to the latest IEEE/IEC 62271-37-013 standard

•Remote motorized racking options are available

Protect assets

•Compliant with the latest global standard – IEEE as well as IEC

•Generator circuit breaker suitable for demanding conditions, including out-of-phase condition and

island mode

•Safety enhanced due to completely tested solution

for DC-component up to 130%; no need to add any

time delay

Optimize investment

•Choose ratings from 40/25 kA @ 15 kV to

63/50 kA @ 15 kV

•Take advantage of the same compact switchgear

setup used in power distribution systems

Small footprint, full protection for Generator Applications

The ADVAC® G is tested to meet the most stringent IEEE and IEC requirements

for generator applications as per IEEE C37.013 and the new revision IEC/IEEE 62271-37-013. the only standards for GCB.

Key benefits

•Safety and protection of personnel and assets in all service modes

including out-of-phase condition and up to 130% direct current component

•Accelerate projects with easy generator circuit breaker integration and dedicated application support

•Optimum interface with all different ratings available

•Accelerate projects with outstanding technical support from the field application engineering team

Maximize output

•Experience easy installation/integration of

ADVAC G40. thanks to its equivalent interfaces

and dimensions like ADVAC

•Accelerate projects with outstanding technical

support from the field application engineering team

Optimize investment

•Optimized design with compact, single-sized compartment for all ratings

•Lowest power consumption accessories for reduced battery bank systems

Reduce maintenance costs

•Class M2. 10.000 mechanical operations

•Globally proven EL operating mechanism and racking truck are shared for all ADVAC circuit breakers, requiring no adjustment or measurement

•Reduced vacuum interrupter wear design requires no visible or mechanical measurements

•Maintenance-free embedded pole design helps protect vacuum interrupters from contamination, moisture, and damage and helps improve tracking resistance

Applications

•Utilities

•Renewables

•Data Centers

•Industrial

Segments/Channels

•Panel builders

•OEMs

•End users

ADVAC 38KV 3000A 40KA

Complete portfolio and rating extension

ABB offers its new 38 kV class medium voltage vacuum circuit breaker with 

spring mechanism type EL (used in products like Emax 2 and VD4) and new vacuum 

interrupter technology up to 40.5 kV, 3000A,  40 kA, 190 kV BIL with 1000 A C2 back to back capacitive switching available.

Help keep personnel safe

•ADVAC38 is the lightest weight 38 kV circuit breaker in the industry, helping increase personnel safety

•Roll-on-floor (ROF) caster design offers ease of use

•Remote motorized racking options are available

Save floor space

•Space-saving compact design

•Two-high stacking compatible

Protect assets: Type tested according to:

•C37.09-2018

•C37.54-2002

•C37.55-2020

•C37.20.2-2015 Annex C for partial discharge testing

A unique modular design allows for quick and safe service for motors, coils and key components

The ADVAC series is a complete line of ANSI-rated vacuum circuit breakers 

with a spring-charged mechanism offering power distribution system customers 

the advantages of the latest technology with a modular design that is easily maintainable.

Key benefits

ABB EL spring mechanism used on various ANSI and IEC breakers to provide up to 20.000 

mechanical operations in a compact, modular design that is readily accessible and easily maintained to reduce downtime

Modular Smart Coil assembly used in multiple ABB breakers provides close, 

open and undervoltage actuation in one simple assembly

The motor assembly can be replaced by removing a single screw, thereby reducing downtime

Vacuum interrupters completely embedded in a solid insulation material provide superior protection against dust, 

dirt and condensation, and are less susceptible to failure due to contamination, tracking or partial discharge

Key features

5kV, 8kV, 15 kV, and 38kV heavy duty breaker rated at 1200A, 2000A, 3000A 

and 4000A FAC continuous current and 25 kA thru 63 kA interrupting current

Safety features include standard built-in mechanical anti-pumping device, KIRK key, 

padlocking, push-button cover provisions and closed-door racking

The racking mechanism (truck) is integrated into the breaker and designed to 180 ft2lb torque 

rating to provide increased reliability and reduced maintenance costs

Benefits

ABB EL spring mechanism used on various ANSI and IEC breakers to 

provide up to 20.000 mechanical operations in a compact,

modular design that is readily accessible and easily maintained to reduce downtime

Modular Smart Coil assembly used in multiple ABB breakers provides close,

open and undervoltage actuation in one simple assembly

The motor assembly can be replaced by removing a single screw, thereby reducing downtime

Vacuum interrupters completely embedded in a solid insulation material provide

superior protection against dust, dirt and condensation,

and are less susceptible to failure due to contamination, tracking or partial.

The ADVAC series is a complete line of ANSI-rated vacuum circuit breakers with 

a spring-charged mechanism offering power distribution system customers the 

advantages of the latest technology with a modular design that is easily maintainable.

Features

5 to 15 kV heavy duty breaker rated at 1200 A to 3000 A continuous current and 25 kA to 63 kA interrupting current

Safety features include standard built-in mechanical anti-pumping device, 

KIRK key, padlocking, push-button cover provisions and closed-door racking

The racking mechanism (truck) is integrated into the breaker and designed to 

180 ft2lb torque rating to provide increased reliability and reduced maintenance costs

Remote motorized racking options are available.