Pre-assembled TeSys D star-delta starter for motor applications up to 7.5kW@400V. Rail mounted starter, open version, consisting of 3 contactors with 230 V 50/60 Hz AC coils, 1NC built-in auxiliary contact on star and a time-delayed auxiliary switch block. Equipped with pre-wired star-delta power connections and mechanical interlock. Maximum operating rate is 30 starts per hour and maximum starting time is 30 seconds. Protection is highly recommended when adding a thermal overload relay (to be ordered separately).