I ordered this unit yesterday to replace the burned relay switch on my Trane XE 1000 compressor fan unit. The problem was that I was not sure of the model number. However, the markings of the voltages that it could handle and amperage seemed the same and it looked similar enough to take a chance that it would be an acceptable replacement. I ordered it yesterday evening and got it today just after 12 PM. Swapped out the damaged one for the new one and it worked like a charm. So about $30 dollars in parts and I was back up and running.

Please if you are going to do DIY on A/C units be very careful and make sure you turn off all power to the unit before working on it. I also ordered a replacement capacitor for my unit just in case which is why my cost was around $30 dollars and not $10. Good luck guys. Hope this helps.

Best price I found for 30A two pole switching. I'm using it to control a 1.5 hp irrigation pump that runs on 120 Vac. Several hundred cycles so far with no problems. Comes with male spade lug attachment points for the main conductors, but these are easy enough to remove leaving you with a large gauge screw clamp type connection. I didn't have room for spade lug connections and don't plan to remove and re-connect the conductors, so the screw clamps worked out well. This contactor is 'open frame' and a bit clunky compared to more expensive equivalents from the high end industrial suppliers, but once mine was installed and tested, I closed the enclosure cover and don't care about appearances.

Perfect replacement contactor for my Goodman heat pump. Higher current rating and seems to be a well made quality part.
Quick delivery and a very decent price. If your somewhat handy, you need to have one of these and the fan run capacitor for those expensive breakdowns that can ruin your weekend and your wallet. Oh yeah, 220V can kill ya, so be smart and make sure you're units dead.

The furnace in my house uses 2 of these monsters. 20kw central heat. One of the originals from 197x started having latching issues and would buzz as loud as a fire alarm. Original factory relays non-existent so went with contacts rated 10A higher than factory to be safe. New one so quiet compared to stock I had to meter it to verify it was working. Halfway through 2nd winter and still works great.

I bought this relay to go between our belt-driven 30" whole house fan and a Honeywell RTH5100B thermostat, and it works like a champ. The "G" (fan) terminal of the thermostat easily provides the power that the relay's solenoid consumes. I bought this 2-pole relay to switch both the high and low speed wires.

A couple things I discovered during testing:

1. The relay takes ~12 watts to energize. This creates heat that needs to be dissipated by firmly mounting the relay to a steel or aluminum box. When left un-mounted, I measured the base at 180 degrees in a 70-degree room.

2. There can be a 60-cycle hum. Now this is no big deal to me as this rascal is mounted in an attic and when it is energized, a big, noisy fan is running.

3. The relay is fairly big. I mounted it in a deep 4-S box with an extension ring to make it even deeper.

4. The spade connectors on the line and load sides are removable. You can just shove your wire(s) in the lugs and tighten them down.

All in all, it seems like a quality product. Just be sure to mount it to metal to manage the heat.