Drive selection note — 15 HP at 460V three-phase
The Delta VFD110B43A is a B-series variable-frequency drive rated for a 15 HP (11 kW) motor on a 460V three-phase supply. That 150% overload endurance for 1 minute means it can handle a starting surge or a momentary load spike without tripping — sized for a pump, fan, or light conveyor that doesn't ride the thermal limit continuously.
The 460V three-phase input (43 code) is the standard North American industrial voltage class — matches a 480V distribution bus stepped down through a typical transformer. The 15 HP (11 kW) motor rating is the continuous-duty ceiling; if your motor nameplate says 15 HP at 460V, this drive is the right frame size. The fan-cooled body pulls air through the heatsink, so it needs clearance around the drive for airflow — don't box it into a sealed enclosure without a ventilation plan. Skip frequency covers three zones across 0.1–400 Hz — useful for avoiding mechanical resonance in a fan or pump system. Stall prevention level is adjustable from 20 to 250% of rated current, letting you tune the drive to the load's torque curve rather than taking a hard trip. Frequency setting resolution of 0.01 Hz is fine for most speed-control loops; a closed-loop encoder feedback card would get you tighter, but for open-loop V/Hz this is standard.
Deployment context
This drive is a panel-mounted unit, not a standalone enclosure — it goes into a control cabinet with proper clearance for the fan-cooled heatsink.