Intended Use

Sunny Boy 240-US

The Sunny Boy is a micro inverter for PV systems that converts the direct current from a PV module into grid-compliant alternating current. The alternating current generated is fed into the utility grid via the Sunny Multigate-US.

Design of a PV system with Sunny Boy 240-US and Sunny Multigate-US

The product is suitable for indoor and outdoor use.

The Sunny Boy must only be connected to a single PV module. The PV module used must comply with protection class II as per IEC 61730, application class A and must be suitable for use with the Sunny Boy. The Sunny Boy must be operated with the Sunny Multigate.

• Do not connect any loads between the Sunny Boy and the Sunny Multigate.

• Do not connect any loads between the individual Sunny Boys.

• Do not open the lid of the Sunny Boy.

• Only mount the Sunny Boy on the framework mounted on the roof directly under the PV modules or on the wall.

• Do not mount the Sunny Boy directly on the module frame.

• Do not mount the Sunny Boy on flammable construction materials.

• Do not mount the Sunny Boy in areas containing highly flammable materials.

• Do not mount the Sunny Boy in potentially explosive atmospheres.

All components must remain within their permitted operating ranges at all times.

The product must only be used in countries for which it is approved or released by SMA and the grid operator.

Use this product only in accordance with the information provided in the enclosed documentation and with the locally applicable standards and directives. Any other application may cause personal injury or property damage.

Alterations to the product, e.g. changes or modifications, are only permitted with the express written permission of SMA. Unauthorized alterations will void guarantee and warranty claims and in most cases terminate the operating license. SMA shall not be held liable for any damage caused by such changes.

Any use of the product other than that described in the Intended Use section does not qualify as the intended use.

The enclosed documentation is an integral part of this product. Keep the documentation in a convenient place for future reference and observe all instructions contained therein.

The type label must remain permanently attached to the product.

Sunny Multigate

The Sunny Multigate is a communication unit and forms the electrical connection point of the PV system with a maximum of twelve micro inverters to the utility grid. The Sunny Multigate is connected between the micro inverters and the utility grid to feed the alternating current of the micro inverters collectively into the utility grid.

The product is designed for indoor use only.

The Sunny Multigate must always be installed in a dust-tight and water-tight industrial enclosure complying with the fire protection class 5VA and pollution degree 3. For indoor use, an industrial enclosure Type 1 with back panel complying with UL50 is required. For outdoor use, an industrial enclosure Type 3 with back panel complying with UL50E is required.

• A maximum of twelve micro inverters can be connected to the Sunny  Multigate.

• No loads must be connected between the Sunny Boy and the Sunny Multigate.

• No loads must be connected between the Sunny Multigate and the circuit breaker.

• The grounding conductor of the AC cable from the inverter must be connected to the Sunny Multigate.

• The grounding conductor of the utility grid must be connected to the grounding conductor terminal of the Sunny Multigate.

• The Sunny Multigate must not be opened.

All components must remain within their permitted operating ranges at all times.

The product must only be used in countries for which it is approved or released by SMA and the grid operator.

Use this product only in accordance with the information provided in the enclosed documentation and with the locally applicable standards and directives. Any other application may cause personal injury or property damage.

Alterations to the product, e.g. changes or modifications, are only permitted with the express written permission of SMA. Unauthorized alterations will void guarantee and warranty claims and in most cases terminate the operating license. SMA shall not be held liable for any damage caused by such changes.

Any use of the product other than that described in the Intended Use section does not qualify as the intended use.

The enclosed documentation is an integral part of this product. Keep the documentation in a convenient place for future reference and observe all instructions contained therein.

The type label must remain permanently attached to the product.