Rated current and thermal derating
The 3RW4026-2TB05: The derating curve matters for panel ambient — if the enclosure runs hot, the continuous current ceiling drops. The 20 % minimum load setting means it handles lightly loaded motors without tripping.
Size S0 and panel fit
Size S0 frame, 45 mm wide, 150 mm tall, 155 mm deep. Screw and snap-on mounting onto DIN rail. The 45 mm width fits standard 45 mm slot spacing in a control panel — no extra adapter needed.
Integrated bypass and protection
Built-in bypass contact system — after the start ramp, the thyristors are shorted, eliminating heat dissipation in the power section during run. Motor overload protection and intrinsic device protection are onboard; adjustable current limitation is standard. Pollution degree 3 per IEC 60947-4-2, suitable for industrial environments.