When you need a contactor for an industrial control panel, the first question is whether you want a simple on/off switch for a single load or a reversing starter that can change a motor's direction. These two options sit on opposite sides of that decision: a compact 1-pole 40A contactor with a 24VAC coil, and a used Allen-Bradley reversing motor starter with a 120V coil and overload relay.
Quick Verdict
If your task is a direct replacement for an air conditioner compressor or condenser contactor, the 1-Pole 40A 24V unit at $19.66 is the straightforward, lower-priced answer. If you need to reverse a motor and want overload protection in one package, the AB 100-C09\*10 reversing starter at $74.99 is the purpose-built choice-just remember it's sold as used.
Side-by-Side Comparison
| Feature | 1-Pole 40A Contactor | AB 100-C09 Reversing Starter |
|---|---|---|
| Price | $19.66 | $74.99 |
| Coil voltage | 24 VAC | 120 V |
| Current rating | 40 A FLA | 1.6/5 A via overload relay |
| Included components | AC contactor | Reversing contactor set and overload relay |
| Condition | New | Used |
| Best for | AC compressor and condenser replacement | Reversing motor control with overload protection |
Where Each Product Wins
Where the 1-Pole 40A Contactor Wins
This contactor wins on price, simplicity, and drop-in convenience. It's a new part with copper contacts and a flame-retardant shell, and it's designed as a direct replacement for many AC units without changing wiring. If you just need to switch a compressor or condenser on and off, this gives you the function without extra complexity.
Where the AB 100-C09 Wins
The Allen-Bradley reversing starter wins when you need motor direction control. It includes a reversing contactor set and an overload relay, so it can handle the switching and protection in one assembly. This saves you from sourcing separate components and wiring them together.
Product Notes
1-Pole 40A 24V AC Contactor
This VEXUNGA replacement contactor is built for air conditioner compressors and condenser units. It supports a 40 A FLA load with a 24 VAC coil and works on 50/60 Hz power. The copper terminal contacts and pure copper coil promote good conductivity, and the flame-retardant shell is meant to provide safety and stability. The unit is new and weighs only 0.24 kg, making it a lightweight component. Keep in mind it's a bare contactor-the included component is the AC contactor itself, so you won't get an overload relay or reversing package. That's fine for straightforward on/off motor loads, but if you need those extra protections, you'll need to add them separately.
AB 100-C09\*10 Reversing Motor Starter
This Allen-Bradley reversing motor starter is a more complete package. It combines a 100-C09 contactor assembly with a 1.6/5 A overload relay and a 120 V coil, and it includes the connector wire between the contactors. The model 193-EA1EB and MPN 100-C09D10 help pin down the exact unit. Because it's listed as used, you should give it a quick visual check before installation. This is the component to choose when your motor requires reversal and you want overload protection built into the same starter, rather than assembling a contactor, a reversing kit, and a relay from separate parts.
Final Choice by Use Case
- If your application is a straightforward AC compressor or condenser contactor replacement, the 1-Pole 40A 24V unit is the one to pick.
- If your motor needs direction reversal and you want the switching and relay components in one package, the AB 100-C09 is the right starter.
