Choosing a starter for a 200 HP motor is not a quick off-the-shelf call. You need reduced voltage starting to limit inrush current, and you need a unit with enough current capacity for the load. This Square D Size 5 Reduced Voltage Motor Soft Starter with an autotransformer and a 250A rating is a concrete option to consider.
Quick verdict
If you need a reduced voltage starter for a 200 HP motor, this Square D unit is worth a close look. It's priced at USD 4,750.00, uses an autotransformer, and carries a 250A rating. The catch is that it's used, so you have to evaluate its condition and completeness before buying.
Who it suits
This starter fits industrial sites and repair shops working on 200 HP motors where reduced voltage starting is the preferred method. The autotransformer reduces the voltage applied to the motor during startup, which can soften the mechanical shock and reduce electrical stress on the power system. If you're comfortable with a pre-owned starter and you already know your motor's current draw, this is a sensible candidate.
What stands out from the listed details
The headline specs are the 200 HP rating and 250A current capacity. The autotransformer design is a specific way to achieve a soft start, and the unit is branded Square D and made in the United States. The Size 5 frame is consistent with this class of starter, so you have a straightforward identity to compare against your existing equipment.
Meaningful trade-offs
This is a used starter, so there's inherent uncertainty about the internal contactors, taps, and windings. The seller notes that the sale includes everything pictured and described, meaning you can't assume accessories are included if they aren't shown. Because the unit is used, you may also need to confirm the exact physical dimensions and wiring arrangement with the seller before committing.
Product note
Square D Size 5 Reduced Voltage Motor Soft Starter 200 HP Autotransformer 250A
This unit is described as a DW7251 model. The seller's notes indicate it was manufactured in the United States and that the price is USD 4,750.00. If you require more detail, the seller provides a FAQ page and a quick message channel for questions.
Bottom line
A 200 HP motor starter is a serious component, and the Square D Size 5 autotransformer soft starter checks the important boxes: horsepower rating, current capacity, and reduced voltage starting. The used condition and the need to confirm what's included are the honest limitations. For a buyer who can work with those, this is a legitimate option for your motor control setup.
