The ABB 1SDA068156R1 is an XT4N 160 four-pole molded case circuit breaker rated at 160 A continuous with an Ekip LSI electronic trip unit, operating at 690 V, 50/60 Hz. This distribution breaker fits panel board and switchboard installations, offering adjustable short-time and instantaneous protection through the Ekip LSI trip unit.
Spare-on-the-shelf status
For critical spares, having one in the cabinet covers the 160 A bus rating common on lighting panels and small distribution loads — before it fails, not after.