Shopping Cart

Your cart is empty.

Your cart is empty.

Orbit 57040 24V 750mA Transformer for Indoor Sprinkler Controllers

Free shipping on orders over $29.99

$21.99

$ 8 .99 $8.99

In Stock

1.ItemPackageQuantity:10


About this item

  • For replacing 110 VAC to 24 VAC 750mA max transformers on indoor controllers
  • Input and output are standard for pump relays and solenoids in North America
  • Capable of powering two solenoids or one pump relay and one valve solenoid
  • For outdoor locations install in an outdoor sprinkler controller cabinet
  • Compatible with indoor controllers from Orbit, Hydro-Rain, and other major brands


Product Description

The 24V 750mA transformer for indoor sprinkler controllers is a direct replacement for Orbit 24 VAC indoor controllers. The input is 110 VAC and the output is 24 VAC which is standard for pump relays and solenoids in North America. The 750mA capacity makes it capable of simultaneously powering two valve solenoids or one pump relay and one valve solenoid. If you need to install an indoor controller and transformer in an outdoor location, then we recommend installing it in the outdoor sprinkler controller cabinet. This transformer is compatible with 750mA max indoor controllers from Orbit, Hydro-Rain, and other major brands.

From the Manufacturer

Orbit's most powerful transformer, supplies power to 2 valves as well as important irrigation accessories.


Daniel Fishman
2025-09-02 12:56:28
Purchased to replace original Bhive Orbit power adapter. Came with a connector that needed to be cut off and wired stripped to connect to terminals in controller. Works fine, correct voltage and amperage.
Vic Vinegar
2025-08-31 16:30:49
Needed a new sprinkler timer power supply with a longer wire. Found this on Amazon warehouse. Price was right and works.
Paul D.
2025-08-19 13:17:43
I have a 15+ year old Toro irrigation system and the power transformer for the control box died. I found this Orbit transformer with the same specs as a replacement. To install it, I stripped the wires to connect it to the controller, since it had a non-compatible connector. Working well.
Mike
2025-08-11 13:09:22
Full disclosure, I'm not an electrician this is just my experience proceed at your own risk.I have an orbit sprinkler system that recently decided to stop working. Taking a look at the unit reveals an "off power" message. Well, what does that mean, the controller display is on so what gives.After some searching on Google I learn the problem may be due to a bad controller transformer. There are two power sources for the controller, battery for the device display and clock and a higher power source to trigger each watering zone to turn on. In my case the transformer wall wart has gone bad. I was able to validate by testing.the output of the Walmart with a multimeter. Turns out it was dead.Ok time to replace the Walmart only one issue, it's an AC 26v 300ma unit. I did my best to find one but no luck. Almost all units I've found are 24v. Another search on google gives me two answers. You must match the voltage while another says it should be ok. They also say the ma rating is ok to be a bit. Higher as the device will pull the necessary amps. I decided to take the gamble and give it a tryI bought this unit only because it matches the brand of my unit. Upon opening first thing I did was measure the power output. This device has a plastic connector and I didn't want to remove it before verifying the voltage.I found something interesting, according to the multimeter the transformer outputs 30v. I'm guessing the device is smart enough to pull the right voltage? I figure at this point this is potentially an advantage given that I need 26v. I strip the wires install and hope for the best. Luckily the message went away and my sprinklers started to work! I'll have to keep an eye on it, hopefully it will continue to work correctly.
Lastamba
2025-08-06 21:48:12
Used this 24vac Orbit power supply to operate an irrigation valve for part of a sprinkler system that needed a flow of 10gpm without a lot of pressure loss vs battery operated timers. Used a regular household GE digital timer to operate the valve until an irrigation 6-point timer can be installed later.
Placeholder
2025-07-09 10:10:48
Replaced my 24 volt ac transformer with Orbit transformer worked with my system. Mine is not the orbit sprinkler system. It worked with my timer with no problems. It was very easy to wire to my timer controller electronic board it comes with a plug that plugs into the orbit system but it has a separate plug adapter that gives you 2 wires already striped so I was able to loosen 2 set screws slip the wires in under the screws and just tighten them. That's all it took to wire the transformer to the timer for my sprinkler system. I took a chance buying this one since it was not made for my system but it is working. I will update this if I run into a problem. I don't expect to but we will see
Alice
2025-06-13 14:04:18
Works great for my dual panel James Hardie sprinkler system after old class 2 transformer burned out. It had the following parameters:INPUT: 120 V AC 60 Hz 18WOUTPUT: 12 VAC 14.4 VASo INPUT outlet 120 V AC, frequency of the OUTPUT doesn't change so it's 60Hz on both sides which is standard. My OUTPUT doesn't current spec (in mA) - but easy to figure out if 750mA in the one Amazon sells is enough for me:Maximum output volt-amp. rating 14.4 VA (OUTPUT specs on my old, broken transformer) is just a result of multiplying the OUTPUT "24V" by the max OUTPUT in mA. So my desired output in mA is 14.4/24 = 0.6A = 600mA so yes, 750mA is more than enough in my case and, indeed, it worked just fine.Hope it helps!
Ruszala's
2025-05-12 18:21:33
I bought this over the winter to replace one that I already had but it had a crack in the housing. When installed in the summer for the sprinkler system long story short the power supply was only putting out 9 volts when 24 were needed
LuisZ
2025-04-11 18:08:16
Buen Producto,
Ed F.
2025-04-09 14:15:59
Supplies the power for my sprinklers. Just what I asked for.
knorwick
2025-01-06 11:10:25
I modified an existing (manual) Hunter irrigation controller with the addition of a custom microcontroller so that I could control and schedule the irrigation valves over wifi using my whole house automation system. The existing transformer was unplugged as I did not want to alter the current system by cutting wires etc. An ESP32 microcontroller connected to a 4 relay board provided the control that was needed. The relay outputs were then routed to the existing connections for the four existing RainBird water valves. This transformer provided the power to operate the valves.
Dre
2024-12-30 14:06:36
Fast shipping!!! Perfect replacement adapter!!!!
Customer
2024-12-14 17:39:38
works great with an older model watermaster sprinkler.
Recommended Products

$24.10

$ 10 .99 $10.99

4.9
Select Option

$84.37

$ 36 .99 $36.99

4.7
Select Option