Fixed 63 A in a 160 A frame
The 1SDA068159R1: This is an ABB XT4N 160 molded case circuit breaker, set at 63 A via the Ekip LSIG trip unit, on a 160 A frame. The 63 A rating is the actual protection setting; the frame can handle up to 160 A, which means you have headroom if you need to uprate later without swapping the breaker body.
Trip unit and protection
Ekip LSIG trip unit provides long-time, short-time, instantaneous, and ground-fault protection. Four poles, rated 690 V AC, 50/60 Hz.
