The ETU330 electronic trip unit is adjustable from 32 A to 160 A full-scale, letting you dial in the exact overload threshold without swapping the breaker. For a 415 V secondary distribution board fed by a large transformer, this gives selectivity headroom downstream.
No undervoltage release or communication module is integrated on this variant.
Integration notes
Mounts in a standard SENTRON panel cutout. The IP40 front protection rating means it is suitable for indoor switchgear where tools are required to access live parts — not for washdown environments. Verify the ETU330 settings (32 A minimum, 160 A maximum) against the load before commissioning — the dials are field-adjustable but require the front cover open.
