OmronG7L-2A-TUB-CB-AC24 General Purpose Relay, Class B Insulation, QuickConnect Terminal, Upper Bracket Mounting, Double Pole Single Throw Normally Open Contacts, 71 mA Rated Load Current, 24 VAC Rated Load Voltage

This replaces the Omron relay inside my Orbit 57009 pump start relay box. When my Hunter irrigation controller reports a "P-Err" and fails to start the well pump and run the zones, that usually means the pump start relay has failed. Be aware that Omron makes several versions of this relay, and the one I need for my Hunter irrigation system requires a 24VAC coil (not 24VDC coil, or 120VAC coil, or any other type coil). The part numbers for these relays often leave off the last characters (AC24 in this case), making it difficult to know exactly what coil you're getting. The part number stamped on the relay may even leave off those last characters, but the schematic stamped on the relay case does show the coil voltage.Omron G7L series relay part numbers use "2A" to denote double pole single throw normally open, "T" to denote quick connect terminal #250, "UB" to denote upper bracket mount, "J" to denote a mechanical test button, "CB" to denote Class B Insulation, and "AC24" to denote a 24VAC coil. This is an enclosed power relay with surface mount bracket, 6 #250 tabs, 24VAC coil, DPST-NO relay rated for 25 amps at 230 volts load, for 1HP and 2 HP pumps.

I purchased this relay to allow the Cool function of my "smart" thermostat to control my whole house fan (I prefer natural air flow to being cooped up in a closed, air conditioned room). It has solid construction and a compact footprint. The features that I found most appealing were: Compact design, flange mounts, and 1/4" male quick connect terminals. I also needed a device with a 24VAC coil voltage and low operating current, with a 250VAC @ 10A Normally Open (NO) contact. A single pole (contact) would have sufficed for my needs, but this one is a double pole device, so I effectively have a spare contact if needed. Being a UL Recognized product will provide a modicum of comfort knowing the part won't catch on fire (if correctly installed, of course).That stated, after installing the relay and connecting my whole house fan, I now enjoy the comfort of breezy cool summer days and nights.

I used this relay to control a central humidifier. The humidifier had its power source from a 110v outlet but needed it control circuit closed to activate it. This relay allowed me to use the 24VAC humidifier output on the furnace to do this instead of using the pressure switch that came with the humidifier. This AC one worked flawlessly. Remember DC relays don't work with AC. It is pretty heavy duty so it makes a nice click when activated but has no continuous hum or chatter. It has two normally open sets of contacts both controlled by one set of control contacts.

Ordered this to replace the water pump relay in our lawn irrigation system. It was an exact replacement for the faulty part. The bad relay would start chattering within a second or two of energizing. This installed quickly with a Philips screw driver and worked perfectly. The relay and the whole box it comes with was available at local hardware supply stores, but they wanted $40 for the whole box and it would have been a lot harder to swap the whole box. It was much easier to just replace the relay itself and it was a lot cheaper. It's working fine now.

The product was identical to the unit I was replacing. Replacement was a breeze and the item was well packed and no damage upon arrival

Great product. Low current draw for irrigation pump relay.

Worked flawlessly.

This was the exact relay to replace the one in my Lawn sprinkler pump relay box. I was a plug and play replacement, and it worked just as well as the one I replaced after lightening hit and destroyed it.