Logic & Relay

Single Phase Motor Soft Starter vs 220V SSR-40WA Controller: Which to Pick

Compare a $50.99 single-phase soft starter module with a $67.67 220V SSR-40WA controller. Find out which one fits your motor size, budget, and protection needs.

Last updated Aug 17, 2026

When you're shopping for a soft starter for a single-phase motor, the core question is how much flexibility and protection you need. Do you want a simple module that lets you adjust the startup ramp, or a controller that can handle several motor sizes and adds protective features? These two choices-the Single Phase Motor Soft Starter and the 220V Single Phase Motor Soft Starter Module Controller-take different approaches.

Quick verdict

If your single-phase motor falls in the lower power range and you want the more affordable way to add a soft start, go with the Single Phase Motor Soft Starter at USD 50.99. If you want a 220V controller with a wider power range, the 220V Single Phase Motor Soft Starter Module Controller at USD 67.67 is worth the extra money.

Comparison table

ProductPriceListed model / power
Single Phase Motor Soft StarterUSD 50.99SSR-60WA-R1 (2KW)
220V Single Phase Motor Soft Starter Module ControllerUSD 67.67SSR-40WA-R1 (2KW/4KW/6KW/8KW)

Where each product wins

  • Lower price: The Single Phase Motor Soft Starter costs less.
  • More motor-size options: The SSR-40WA controller is the more versatile choice for a range of motor ratings, while the module is aimed at a single rating.
  • Hands-on tuning: The module's potentiometers let you adjust the starting voltage and soft-start time.
  • Protection focus: The SSR-40WA controller includes a protection function, smooth start/stop, and reduced mechanical stress.

Product notes

Single Phase Motor Soft Starter Single-phase Soft Starting Module Soft Start

Single Phase Motor Soft Starter Single-phase Soft Starting Module Soft Start

This module is the straightforward pick for a single-phase motor that only needs a gentler startup. The specification is SSR-60WA-R1. Its start potentiometer and soft-start potentiometer adjust the starting voltage and soft-start duration, with examples covering both 220V and 380V power supplies. That makes it a good fit when you prefer to tune the startup ramp yourself rather than accept a fixed profile. The tradeoff is that it is tied to a single power rating. If you want a wide range of motor sizes, this module will feel limited.

220V Single Phase Motor Soft Starter Module Controller 2KW4KW6KW8KW(SSR-40WA-R1

220V Single Phase Motor Soft Starter Module Controller 2KW4KW6KW8KW(SSR-40WA-R1

For a single controller that can handle more than one motor size, the 220V Single Phase Motor Soft Starter Module Controller is the more versatile option. It is labeled for 220V single-phase motors and lists power ratings of 2KW, 4KW, 6KW, and 8KW, with model number SSR-40WA-R1. It also has a protection function that takes measures to prevent motor damage, along with smooth start and stop behavior that reduces current impact and mechanical stress. That combination can help extend motor lifespan in equipment like pump stations, fans, compressors, and conveyors. No assembly is required, and it is easy to install. You pay more for this capability, but you get a single unit that can cover a wider spread of motor ratings and a protection-focused design.

Final choice by use case

Choose the Single Phase Motor Soft Starter if your motor matches its power rating, you want the lower price, and you prefer to adjust the starting voltage and soft-start time yourself.

Choose the 220V Single Phase Motor Soft Starter Module Controller if you need a more versatile controller for different motor sizes and you're comfortable with the higher price.

Products in this article
Single Phase Motor Soft Starter Single-phase Soft Starting Module Soft StartUSD 50.99View on eBay220V Single Phase Motor Soft Starter Module Controller 2KW4KW6KW8KW(SSR-40WA-R1USD 67.67View on eBay
Single Phase Motor Soft Starter Single-phase Soft Starting Module Soft StartUSD 50.99View on eBay220V Single Phase Motor Soft Starter Module Controller 2KW4KW6KW8KW(SSR-40WA-R1USD 67.67View on eBay

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