Quick verdict
When a motor starts, the choice of soft starter usually comes down to what you are powering. If your job is a residential AC compressor, the 8-16A AC soft starter is the more natural fit. If you are wiring an industrial control panel, the Stellar SR22-09 is the one sized for that world. The two units overlap in purpose as soft starters, but they target different installation environments. Use the comparison below to match the right one to your system.
Comparison at a glance
| Consideration | 8-16A AC Soft Starter | SR22-09 Stellar Soft Starter |
|---|---|---|
| Listed price | USD 110.42 | USD 94.99 |
| Input voltage | 230V | 480V AC |
| Current range | 8-16A (units 1.75-3.5 tons) | 9 FLA |
| Condition | New | Used |
| Primary use | Utility/generator power | Industrial motor control |
Where each product wins
- 8-16A AC Soft Starter: It brings a full protection set: reverse motor protection, low-voltage protection, and over-current compressor protection. That makes it the better match for setups where startup spikes and flicker are a concern.
- SR22-09 Stellar Soft Starter: It's the industrial option of the two, and it's aimed at a motor control application. If your system is closer to a PLC-driven motor control setup, this is the one to size.
Product notes
8-16A AC Soft Starter
The 8-16A AC soft starter is built around 1.75-3.5 ton residential AC equipment. It covers HVAC systems, EV chargers, solar setups, and more, with straightforward instructions and diagrams. That makes it a practical pick when you're adding soft starting to that kind of equipment. The protection list is the strongest reason to choose it: reverse motor protection, low-voltage protection, and over-current compressor protection. The limitation is its 230V residential orientation; the product is aimed at a different electrical environment than higher-voltage industrial gear, so you'd pair it with the system it covers rather than with industrial panels.
SR22-09 Stellar Soft Starter
The SR22-09 Stellar soft starter is the industrial motor control candidate. Its model, input voltage, and load rating center on a 480VAC control application, and the used condition makes it a pre-owned purchase rather than a new-in-box component. The reason to choose it is straightforward: if your equipment runs on 480VAC and draws within a 9 FLA rating, this unit matches that spec better than the lower-voltage option. The concrete limitation is the used status, which you'll want to factor in before installation. It focuses on the industrial essentials: input voltage, model, and rated load, while the other unit adds more feature detail.
Final choice by use case
Choose the 8-16A AC Soft Starter for utility/generator power work, at USD 110.42.
Choose the SR22-09 Stellar Soft Starter for PLC-style motor control work, at USD 94.99.
If your system sits clearly in one of these two worlds, the decision follows the voltage and load rating. If it doesn't, these two units aren't interchangeable; they're aimed at different installations.
