The ABB 3AXD50000268528 is a wall-mounted LV AC drive for water and wastewater. It delivers 273 A in light-overload duty (100 Hp) and 75 A in heavy-duty (75 Hp) per UL, on a 208-240 V three-phase supply. Frame R8, IP21, NEMA Type 1 enclosure.
The light-overload current of 273 A is the figure to size the input feeder and branch protection for pump/fan duty. Heavy-duty 75 A covers constant-torque loads like screw feeders or positive-displacement pumps. Standby loss of 26 W is the heat the drive dissipates when the motor is stopped but the DC bus is live. Efficiency is rated IE2, which is the baseline for this power class. The 40 °C maximum ambient is the design point; derate per the drive's thermal curve above that.
The R8 frame is a physical size class; verify the mounting footprint against the existing panel layout if replacing a different frame. WEEE Category 4 applies for end-of-life disposal in EU jurisdictions.
