SMA SUNNY BOY STORAGE 3.8-US Instructions D'installation page 9

SMA Solar Technology AG
2 Safety
2.1 Intended Use
The Sunny Boy Storage is an AC-coupled battery inverter for parallel grid and stand-alone mode
operation. The Sunny Boy Storage converts the direct current supplied by a battery into grid-
compliant alternating current. The Sunny Boy Storage, together with a battery and a compatible
energy meter, make up a system for increased self-consumption (SMA Energy System Home) or,
together with a automatic transfer switching device compatible with Sunny Boy Storage, a battery-
backup system. For further information on this, see the Technical Information "SMA Energy System
Home".
The product may only be operated in off-grid systems with approved PV inverters. An overview of
the compatible inverters can be found in the technical information "PV Inverters - Use of PV Inverters
in Off-Grid and Backup Systems in North and South America".
The product may only be operated in battery-backup systems with a PV inverter of type SBx.x-1SP-
US-41 by using an automatic transfer switching device approved by SMA Solar Technology AG.
You are not allowed to build automatic transfer switching devices for operation with this product by
yourself on the basis of a circuit diagram.
A list of the approved automatic transfer switching devices can be found in the technical
information at "SUNNY BOY STORAGE - Approved batteries and information on connecting
batteries / Approved automatic transfer switching devices for battery-backup operation".
The product must only be used as stationary equipment.
The product is suitable for indoor and outdoor use.
The product must only be operated in connection with an intrinsically safe lithium-ion battery
approved by SMA Solar Technology AG. An updated list of batteries approved by SMA Solar
Technology AG is available at www.SMA-Solar.com.
The battery must comply with UL 1973 and must be intrinsically safe.
The communication interface of the battery used must be compatible with the product. The entire
battery voltage range must be completely within the permissible input voltage range of the product.
The maximum permissible DC input voltage of the product must not be exceeded.
The product is not suitable for supplying life-sustaining medical devices. A power outage must not
lead to personal injury.
All components must remain within their permitted operating ranges and their installation
requirements at all times.
The products by SMA Solar Technology AG are not suitable for use in
• Medical devices, in particular products for supplying life-support systems and machines,
• Aircraft, the operation of aircraft, the supply of critical airport infrastructure and airport
systems,
• Rail vehicles, the operation and supply of rail vehicles and their critical infrastructure.
The above list is not exhaustive. Contact us if you are unsure whether products by SMA Solar
Technology AG are suitable for your application.
The product is approved for the US and Canadian market.
Installation Manual SBSxx-US-10-IA-xx-14
2 Safety
9