The ABB 3AXD50000270903 is an ACS580-01-075A-2 general-purpose wall-mounted drive for 208–240 V 3-phase input. It delivers 25 Hp at 74.8 A under light-overload duty (variable-torque loads like fans and pumps) and 20 Hp at 59.4 A under heavy-duty use (constant-torque loads like conveyors). The R4 frame size and IP21 enclosure suit indoor panel mounting; standby loss sits at 17 W, a figure to include in enclosure thermal calculations.
The heavy-duty UL rating (20 Hp, 59.4 A) is the limiting spec for continuous constant-torque applications. If your load profile is variable torque — centrifugal pump, fan, compressor — the light-overload rating (25 Hp, 74.8 A) applies, giving 25% more headroom. Both ratings are at 40 °C ambient; derate above that per the thermal curve in the manual.
Mounting and compliance notes
Wall-mounting, IP21, NEMA Type 1 — indoor use only, no washdown. The 17 W standby loss is continuous; factor it into enclosure cooling if the cabinet is sealed. IE2 efficiency level meets baseline requirements for regions without mandatory IE3 legislation. The 50/60 Hz rating covers both line frequencies without derating.