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Humless Universal Control Box 8.5

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Humless Universal Control Box 8.5

Use The Universal 8.5 to control the solar on your roof when the grid fails

The Universal 8.5 Control is our intelligent Energy Control that works with any 48 Volt battery chemistry. It offers advanced software that keeps grid-tied solar panels on during a grid outage. The Universal does AC and DC couple from PV solar simultaneously. This means AC coupled inverters can be used off the grid. It comes with generator auto-start, load shaving, and many other features. 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. This allows homeowners to work off-grid or grid-tied with more advanced system controls with their current 48V battery bank. For more output power you can stack multiple units together. This is a complete control system with intelligent energy software, breakers, fuses and a built-in MPPT for DC charging. Will AC couple to any grid tied PV inverter.


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 gird 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. PLUS:

  • Wall Mounted- Yes
  • Net Metering- Yes
  • Generator Control- Yes
  • Load Shaving- Yes
  • Arbitrage- Yes
  • BACNET Compatible


5 kWh Battery (LiFePO4)
Inverter Continuous Output 8.5 kVA
Inverter Surge Output 8,500 Watt @ 30 Min; 11,000 Watt @ 5 Min; 12,000 Watt @ 1 Min
Battery Voltage 48V
AC & DC Coupling Yes (Simultaneously from PV)
Grid Settings Grid-tied and off-grid compatible

Warranty & Returns


Humless warrants this product and its parts against defects in materials or workmanship for one year from the original ship date. During this period, Humless will repair or replace defective parts with new or reconditioned parts at Humless’s option, without charge to you.

Returns: Humless provides a 30-Day Return Window and the following limited warranty. This limited warranty extends only to the original purchaser. You must contact us via email at

When you contact us we will provide you with an RMA number and confirm the return address to you. You can then arrange to send back the product. The return cost associated with any unopened/unused and non-defective product is the purchasers responsibility.

If you would like to return any unopened/unused and non-defective product after 30 days of product purchase, that item can be returned back to us and you will incur a 15% restocking fee. In addition, the return cost associated with the unopened/unused and non-defective product is the purchasers responsibility.

Damages:If for any reason your product is damaged upon receipt, please contact us via email at so that we can work with you on getting a replacement.


We are glad to offer Free Shipping for products shipped within the continental US

We currently do not offer shipping to Hawaii or Alaska through our website. If you are interested in placing an order to ship to either of these locations, feel free to reach out to us directly so that we can work to provide you custom shipping arrangements.

For any small parcel shipments going Ground, you can usually expect delivery of your product within 5-7 business days for orders being shipped to any of the contiguous states.

This product can not be shipped to a P.O. box.

Humless Universal Control Box 8.5


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