ABB XT5SU340ABFN000XXX — Molded Case Circuit Breaker

Part number	XT5SU340ABFN000XXX
Brand	ABB
Category	Circuit Breaker
Description	Molded Case Circuit Breaker
Manufacturer	ABB
Product Type	Molded Case Circuit Breaker
Product Line	Tmax XT Series
Part Number	XT5SU340ABFN000XXX
UPC	0 56221022109
Rated Voltage	600 Volts AC
Rated Current	400 Amperes
Number of Poles	3 poles
Interrupting Rating	50 kiloamperes at 480 Volts AC and 65 kiloamperes at 240 Volts AC
Phase Rating	3-phase
System Frequency	50 to 60 Hertz
Type of Trip Unit	Adjustable thermal magnetic trip unit
Trip Functions	Long-Time and Instantaneous (LI)
Wire Range	2 to 2/0 American Wire Gauge (AWG)
Line Side Terminal Connection	Front terminals without lugs
Compatible Wire Type	Copper or aluminum wire
Number of Cables Per Lug	2 cables

The ABB XT5SU340ABFN000XXX, part of the Tmax XT Series, is a molded case circuit breaker designed for robust performance. It supports a rated voltage of 600 Volts AC and has a current rating of 400 Amperes. With three poles for three-phase systems, it can interrupt currents up to 50 kiloamperes at 480 Volts AC and 65 kiloamperes at 240 Volts AC.

Also written as

0 56221022109

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.