Quick verdict
If you're shopping for a variable-frequency drive to run a 15 HP three-phase motor from a 208/240VAC supply, the Schneider ATV212HD11M3X Altivar is a compelling pick at USD 350. It's not a soft starter, but it does far more: it lets you adjust motor speed, not just ease it into motion. For anyone who needs variable speed in an industrial or motion-control application, this drive is a practical balance of price and capacity.
Who it suits
This drive is for a plant or machine builder that wants adjustable motor speed on a fairly large motor. It fits into industrial automation and motion-control systems where a fixed-speed motor would make the process harder to manage. Think pumps that need to match flow, fans that need to match airflow, or conveyors that need varied line speed. If you are already comfortable tuning drive parameters, this is the type of unit that can drop into a panel and start doing work.
What stands out
The 46A output current is a concrete number to check against your motor's full-load current. The Altivar line from Schneider Electric is positioned as trusted and dependable for automation, and this unit is new, so you're not weighing used-hardware risk. The drive is also a VFD, not a soft starter, which is the central thing to know before you buy. Instead of simply ramping a motor to full speed, a VFD can run it at any speed, which is what gives you process flexibility.
The product note
Schneider ATV212HD11M3X Altivar Variable Frequency Drive 208/240VAC 15HP 3P 46A

The reason to choose this drive is its ability to run a motor at variable speeds. That is the core advantage over a soft starter. The limitation is the programming depth: you will need to set motor data, control logic, and protection functions before first use. A soft starter may only need a ramp time and a current limit, but this VFD expects a commissioning step.
Meaningful trade-offs
Most shoppers comparing drives and soft starters get stuck on the same choice. A soft starter only manages the motor's acceleration and deceleration, then passes the power through. The Altivar VFD does more: it gives you speed control, programmable acceleration, and the ability to change the motor's speed to match process demand. That power comes with a steeper learning curve. You'll need to configure motor parameters and protection functions before you can trust it in production. With a soft starter you might be up and running in minutes; with this drive you should budget time for commissioning.
Bottom line
The Schneider ATV212HD11M3X Altivar is a solid, sensible VFD for industrial motor control from a trusted brand. At USD 350, it brings new hardware and variable-speed capability to a panel without the usual mark-up. Buy it if you want true variable-speed control for an industrial motor. Skip it if you only need a soft start and would rather keep the setup simple.