Circuit breakers (IEC)
￭
ABB miniature and molded case circuit breakers
This section does not apply to the North American market. See section Circuit
breakers (UL).
The protective characteristics of circuit breakers depend on the type, construction
and settings of the breakers. There are also limitations pertaining to the
short-circuit capacity of the supply network.
WARNING!
Due to the inherent operating principle and construction of circuit breakers,
independent of the manufacturer, hot ionized gases can escape from the
breaker enclosure in case of a short-circuit. To make sure of safe use, pay
special attention to the installation and placement of the breakers. Obey the
manufacturer’s instructions.
Note:
• Ratings in the tables are maximum for the given circuit breaker frame size.
• Breakers of the same frame size and interrupting rating with lower current
ratings are also allowed.
• Using a circuit breaker with a lower KAIC rating is not allowed even if the
available short-circuit current is less than 65kA.
• For the ABB circuit breaker configurator refer to:
https://lowvoltage-configurator.tnb.com/configurator/#/config/tmax_xt
You can use the circuit breakers listed below. Other circuit breakers can be used
with the drive if they provide the same electrical characteristics. ABB does not
assume any liability whatsoever for the correct function and protection with circuit
breakers not listed below. Furthermore, if the recommendations given by ABB are
not obeyed, the drive can experience problems that the warranty does not cover.
Note: Circuit breakers are not yet validated as protection device for R6 frame “HW
V2”. R6 frame “HW V2” variants must use fuses. “HW V2” is shown in the type
designation label.
ABB moulded case circuit breaker (Tmax)FrameACH580-
31-…
kA
1)
Type
U
n
= 400 V
65XT2H 160 EKIP DIP LS/I IN 25R309A5-4
65XT2H 160 EKIP DIP LS/I IN 25R312A7-4
65XT2H 160 EKIP DIP LS/I IN 63R3018A-4
184 Technical data
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