Air Circuit Breakers (ACBs)

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Techna offers a range of high performance Air Circuit Breakers (ACBs) which provide protection and switching for electrical equipment from 630A to 6300A. Our Atec series of air circuit breakers are available in three different sizes, in 3 or 4 pole and as a fixed or withdrawable design.

The Atec Series Air Circuit Breakers (ACBs) can be configured to feature a wide range of accessories, such as switches, undervoltage releases, shunt trips, hand and motor drives, covers and connecting sets. Our range of air circuit breakers can therefore be customised for use in complex installations and operations.

Air Circuit Breaker Standard Equipment

Below is a list of equipment and features that come as standards with our Atec Air Circuit Breakers (ACBs):

Fixed Design Version

Push-button for mechanical ON
Push-button for mechanical OFF
Hand Drive with storage device
Mechanical indicator of circuit breaker state - ON/OFF state
Mechanical storage device state - wound up/released
Mechanical indicator “ready-to-close”
Auxiliary Switches - 2NO + 2NC Contacts
Terminals blocks and connectors for connection of auxiliary circuits - the circuit breaker / switch disconnector is always equipped with all necessary terminal blocks and connectors
Mechanical indicator of switching off by overcurrent release
Mechanical interlocking of reset after switching off by overcurrent release

Withdrawable Design Version

This version is available with the same equipment and features as the Fixed Design Version, with the addition of:

Mechanical indicator of the circuit breaker in the withdrawable device
Locking device against shifting of circuit breaker using a padlock

Click here to download the pdf datasheet on our Atec Air Circuit Breakers (ACBs).

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