When you're shopping for relays, contactors, and industrial switches, you'll find everything from inexpensive spares to high-spec control components. The INDUSTRIAL SPARE SSR-40DA Relay is priced at $8.00, while the Struthers-Dunn 219XBX69P Power Relay costs $319.99. That price difference is massive, but the right pick depends on your voltage requirements and how much specification detail you need.
Quick Verdict If you need a relay for a 24/480V circuit and you're okay with an open-box unit, the SSR-40DA is the obvious low-cost choice. If you need a new relay with a clearly documented 115/125VDC coil for commercial or industrial control panels, the Struthers-Dunn is the safer option.
Comparison Table
| Feature | INDUSTRIAL SPARE SSR-40DA | Struthers-Dunn 219XBX69P |
|---|---|---|
| Price | USD $8.00 | USD $319.99 |
| Condition | New - Open box | New |
| Brand | INDUSTRIAL | Struthers-Dunn |
Where the SSR-40DA Wins The biggest advantage of the SSR-40DA is its extremely low price compared to the Struthers-Dunn. It's marked for 24/480V, and the open-box condition helps keep costs down. The listing also mentions a 30-day return policy for a refund or replacement, which adds a small safety net. For simple switching where a 24/480V relay will do, this is the low-cost way to get the job done. Just confirm the voltage rating matches your circuit, since that's the primary specification provided.
Where the Struthers-Dunn Wins The Struthers-Dunn 219XBX69P excels in specification clarity. It's brand new, not open-box, and its 115/125VDC coil voltage is explicitly stated. The listed applications-commercial, control equipment panels, and industrial-make it easy to see where this relay is meant to be used. For a professional control system that requires a precise DC coil and industrial rating, this relay gives you the details you need. The higher price is the trade-off for that level of specification.
INDUSTRIAL SPARE SSR-40DA Relay
If your circuit is built around a 24/480V relay and you want to keep costs down, this SSR-40DA is an attractive buy. The open-box condition means you might not get a pristine package, but the relay itself is described as new. The listing includes a 30-day return policy, so you can get a refund or replacement if it doesn't work out. The main thing to watch is the electrical spec: the listing focuses on the 24/480V rating, so make sure that lines up with your application. For a simple spare or a non-critical switching job, this price point is hard to beat.
Struthers-Dunn 219XBX69P Power Relay
This is the relay you choose when you need a new, well-documented part for a control system. The 115/125VDC coil voltage is clearly stated, and the intended uses-commercial, control equipment panels, and industrial-give you confidence that it's designed for real-world automation. The trade-off is the significantly higher price, which is only justified if your project actually needs a relay with this specific DC coil and industrial specification. For a basic general-purpose spare, you're paying for more relay than you might need.
Final Choice by Use Case Go with the INDUSTRIAL SPARE SSR-40DA if you're on a tight budget, the 24/480V rating fits your circuit, and you don't mind an open-box spare. Choose the Struthers-Dunn 219XBX69P if you need a new, industrial-rated power relay with a 115/125VDC coil and you're willing to invest in that level of specification.
