The 3RB2056-1FC2 is a SIRIUS solid-state overload relay, size S6, with a rated operational current of 200 A and a Class 10E trip characteristic. Rated for main circuits up to 1000 V (AC-3e) and a thermal current (Ith) of 200 A, it handles the full motor branch current without external bypassing. The busbar connection for the main current circuit keeps voltage drop low in high-current panels.
Panel fit and mounting flexibility
Dimensions are 120 mm wide × 119 mm high × 155 mm deep — the S6 footprint fits standard motor control centre buckets and larger panel enclosures. Fastening method allows either direct contactor mounting (mates with S6 contactors) or stand-alone installation on a mounting plate. The auxiliary switch is integrated — no separate add-on block needed for the trip signal. Main circuit connection uses M8 busbar hardware.
Auxiliary contact ratings and tripped indication
The integrated auxiliary contact provides the tripped signal — the note on the part is for message "tripped". These are the make/break capacities for the signalling circuit feeding the PLC or alarm annunciator.
Environmental tolerance and compliance
Operating temperature range is -25…+60 °C with full temperature compensation, meaning the trip curve stays accurate across the panel's internal ambient. Storage and transport range is -40…+80 °C. Shock resistance is 15 g for 11 ms per IEC 60068-2-27; vibration resistance covers 1–6 Hz at 15 mm amplitude and 6–500 Hz at 20 m/s² for 10 cycles. These ratings suit installations on machinery or conveyors with moderate vibration. Rated frequency is 50…60 Hz, covering standard line supplies worldwide. Substance prohibition date of 07/01/2006 aligns with RoHS compliance scope.