When you're shopping among relays, contactors, and industrial switches, an AC condenser or compressor contactor replacement comes down to two numbers: pole count and full-load amp rating. These two 24V coil units land at nearly the same list price, with only about 65 cents separating them, so the deciding factors are pole count and full-load amp rating.
Quick verdict
Choose the 2-pole 30A contactor if your condenser/compressor setup needs to switch two line feeds and you're comfortable with a 30A FLA rating (it also lists a 40A resistive load capacity). Choose the 1-pole 40A contactor if your application needs a higher 40A full-load current on a single pole. Both use 24 VAC coils at 50/60Hz, so the coil won't separate them-pole count and current rating will.
At a glance
| Feature | 2-Pole 30A 24V Contactor | 1-Pole 40A 24V Contactor |
|---|---|---|
| Listed price | USD 19.01 | USD 19.66 |
| Pole configuration | 2 pole | 1 pole |
| Full-load amp rating | 30A FLA (40A resistive) | 40A FLA |
| Coil voltage | 24 VAC | 24 VAC |
| Frequency | 50/60Hz | 50/60Hz |
Where each wins
The 2-pole model wins when you need to disconnect both sides of the line with one device. It lists compatibility with devices up to 600 VAC, which adds flexibility for higher-voltage equipment. The 1-pole model wins when a single-pole layout is sufficient and you want the extra 10A of full-load capacity, with a listed temperature range from -40°C to +65°C for demanding environments.
2 Pole Air Conditioner Contactor 30 Amp 24V Coil
This CGELE contactor stands out with its two-pole design. One device can switch both lines in an AC condenser or compressor circuit, and the 30A FLA / 40A resistive rating means it can handle motor loads plus some resistive load headroom. It also uses silver alloy contacts that resist oxidation, copper coil construction, all-copper terminals, and a flame-retardant housing. The base has fixing screw holes and wiring can accept spade terminals, which simplifies the install. The limitation is the 30A full-load ceiling-if your motor draws more than 30A under load, this model won't be sufficient.
1 Pole 40 Amp 24 VAC Coil AC Contactor
This 1-pole contactor brings a 40A FLA rating, making it the better fit for a single-pole circuit that needs more full-load current. It's rated for 24 VAC at 50/60Hz, lists a wide temperature range of -40°C to +65°C, and weighs only 0.24 kg, so it's a lightweight replacement for condenser and compressor duty. It is a direct replacement that requires no wiring or adapter changes. The limitation is its single-pole configuration: if your circuit needs a contactor that breaks both lines at once, this one won't do the job.
Final choice by use case
Let the original contactor's pole count and full-load current be your guide. If your condenser needs two-pole switching, the 2-pole 30A unit is the natural replacement. If your system only needs a single-pole disconnect and the higher 40A FLA rating is what you're after, the 1-pole 40A unit is the more appropriate pick.
