# TLDR Review: Leviton MS303-DSW Motor Controller

*Published: 2025-03-04 | Updated: 2025-03-04 | Source: https://shopsavvy.com/reviews-tldr/leviton-ms303-dsw-motor-controller*

---

## Product: Leviton MS303-DSW Motor Controller
**Brand:** Leviton

## Pros
- The product is sturdy and well-made with large wire attachments, making installation easy.
- Effectively functions as a safety shut-off switch for 220V heat pumps.
- Reliable on/off functionality for 3-phase air compressors.
- Simple and user-friendly design enhances ease of use.
- Meets design specifications for three-phase switching tasks.

## Cons
- May not function properly with unconventional or unique home wiring setups.
- A reviewer experienced issues due to previous bizarre wiring, reducing testing effectiveness.
- Some frustration expressed with unexpected home wiring issues that might require professional help.

## Bottom Line

The Leviton MS303-DSW is a robust and well-designed three-phase manual motor controller, excellent for conventional installations and industrial-grade applications. It effectively handles safety shut-off and 3-phase motor control tasks. However, the product may not be suitable for homes with unusual wiring systems. For those facing such wiring challenges, professional installation might be beneficial to ensure optimal performance.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| The product is sturdy and well-made with large wire attachments, making installation easy. | May not function properly with unconventional or unique home wiring setups. |
| Effectively functions as a safety shut-off switch for 220V heat pumps. | A reviewer experienced issues due to previous bizarre wiring, reducing testing effectiveness. |
| Reliable on/off functionality for 3-phase air compressors. | Some frustration expressed with unexpected home wiring issues that might require professional help. |
| Simple and user-friendly design enhances ease of use. |  |
| Meets design specifications for three-phase switching tasks. |  |

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|
| Walmart | $46.10  | Check |
| Radwell.com | $49.00  | Check |
| Neobits.com | $53.95  | Check |
| EveryMarket | $60.80  | Check |
| Platt Electric Supply | $64.87  | Check |
| www.bestledz.com | $78.39  | Check |
| RS Components ES | $101.92  | Check |

---

*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*