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Humless - Universal Control Box 8.5


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Universal Control Box 8.5 by Humless

The Universal Control Box 8.5 gives controls with their current 48V battery bank allows homeowners to work off-grid or grid-tied. This is a complete control system with intelligent energy software, fuses, breakers, and a built-in MPPT for DC charging. With AC couple to any grid-tied PV inverter.

The Universal Control Box 8.5 offers advanced software that helps you control the solar on your roof when the grid fails. It comes with generator auto-start, load shaving, and many other features. The AC coupled inverters can be used off the grid because the Universal does the AC and DC couple from PV solar simultaneously. It also offers advances software that keeps grid-tied solar panels on during a grid outage.

You can stack multiple units together for more output power. The 8.5k Control can handle continuous power loads of 6,800 Watts with surges of 8.500 Watts for 30 Minutes and surges of 12,000 watts for 1 minute.


The Universal 8.5 kVA offers our intelligent energy management software with a 60A DC charge controller and LCD screen for system monitoring. The Universal comes with a PV charger, can be charged from the grid, and has a built-in generator input. This inverter/control has enough output power to take a cabin completely off the grid or power critical loads in a home.

This system, due to its size, requires a minimum battery bank of 300AH at 48 Volts. The Universal 8.5 kVA Control can AC and DC couple from solar PV simultaneously. This allows it to AC couple any solar inverter between 4,000-8,500 Watts depending (on AC PV solar inverter type chosen). On the DC-coupled array, you can also add up to 3,500 watts of solar PV.

This Universal control comes complete with self protections, advanced control systems, a built-in generator 2-wire auto-start feature, and will pair with any 48V battery bank above 300A. This unit is fully stackable for larger output if needed.


32" Wide x 57" Tall x 13" Deep

8.5 kVA

8,500 Watt @ 30 Min; 11,000 Watt @ 5 Min; 12,000 Watt @ 1 Min


Yes (Simultaneously from PV)

Grid-tied and off-grid compatible







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  1. We care about you. We don't want to just sell you something and never hear from you again, we want to be a part of ALL of your adventures. To do that, we know how important customer satisfaction and providing quality products is.  
  2. We're a family owned business! My wife and I run Wild Oak Trail, and when our son and daughter are old enough, they will probably take your calls too.  
  3. We are passionate about the outdoors, going on adventures, emergency preparedness, off the grid living and so much more. It's all inspiring! We'd love to hear what you've got planned for our products! 
  4. We stand behind what we sell. If you're not happy, we'll make it right.