SUNNY BOY 240

Flexible. Extendable. Effortless.

PV system operators can make a smart investment today, toward the future of the energy transition. The Sunny Boy 240 and its modular system make this possible. Thanks to its simple design, ease of planning and installation and overall flexibility when it comes to energy demand, it provides nothing but benefits.

Principle:

Modular design means easy expansion

When it comes to generating electricity with the micro inverter system, you can decide how small (or how large) your PV system will be (or become). Depending on the energy demand and your financial resources, the system can be expanded or varied step by step.

  • System size ranging from a single module (e.g., on a balcony) to a system offering several kilowatt-peak output
  • Any number of additional micro inverters can be connected thanks to the flexible design of the Sunny Multigate*

*Depending on local regulations

Device:

Less is more

When developing the Sunny Boy 240, we focused on the essentials. This means that we combined components, thereby doing away with entire assemblies. As a result, the device contains approx. 50 percent fewer components than competitor products.

  • Exceptional reliability and robustness thanks to just 176 high-quality components
  • Central functions outsourced to the Sunny Multigate (e.g., power line communication filter or grid disconnection device)

Installation:

Exceptionally easy

Regardless of where and how the device is installed, electrical and mechanical planning work is reduced to a minimum. And installation and connection are extremely easy thanks to the ready-made, easily identifiable plugs.

  • Pre-assembled AC cables
  • Choice of DC adapters

Monitoring:

Everything at a glance

Access to the Sunny Portal, which comes standard, allows the system to be monitored at a modular level. This means that PV system operators benefit from around-the-clock access to detailed analysis, diagnostic and yield monitoring functions.

  • Display of module and inverter data in real time
  • Clear identification of shading/module problems
  • Automatic reporting

Partial shading: A separate MPP tracker for each module ensures optimum yields, even with moving shadows.

Different orientations: The modules can even be operated on an east-/west-facing roof under uneven irradiation conditions.

Optimum utilization of roof surfaces: The micro inverter can generate electricity even in “inefficient” areas.

Small systems: Whether on the balcony or in the garden, the Sunny Boy 240 can be used in even the smallest PV system for private power generation.

Applications:

At home anywhere

A micro inverter system is also ideal for challenging applications with partial shading, a complex roof structure, small systems or different roof orientations.

  • In conjunction with an existing string inverter system or as a newly installed micro inverter system
  • Greater yield with shaded or differently oriented modules

What is a micro inverter?

PV inverters can be classified in the following three groups: micro inverters, string inverters and central inverters. They are distinguished primarily by the number of assigned PV modules. String inverters are to be found in classic residential PV systems and in small-size and medium-size industrial applications. Central inverters, on the other hand, are deployed in large-scale industrial systems and PV power plants. Micro inverters are the smallest existing inverter units. They convert direct current from each individual module into alternating current. They are based on the principle of modularity and can therefore be optimally adapted to specific local conditions.

Do micro inverters achieve greater PV yield?

Micro inverters bring their yield-related advantage to bear whenever individual local conditions such as shading, varying alignment or soiling of the modules, etc. are effective. According to an investigation by PHOTON magazine, the increase in yield in these cases is approximately five percent. Some manufacturers indicate even greater increases from 15 to 20 percent, but SMA cannot confirm this.

How do string inverters and micro inverters differ from the point of view of cost?

Apart from the costs for the inverter(s), you mainly need to consider the costs for the total PV system. These costs vary depending on the PV system design and size. For small PV systems, the system costs of both types of inverters will be fairly similar, although micro inverters in general pose a much lower entry barrier for PV. For PV systems with more than 5 kWp, we expect the system costs with one string inverter to be significantly lower.

Are micro inverters more reliable than string inverters?

Due to their mounting location, micro inverters are in general subject to much harsher environmental conditions. This and the higher number of inverters per PV system means that a micro inverter needs to be trimmed to a much higher reliability. SMA has achieved this goal by means of a fundamentally new (technical) design based on a consistent reduction in the number of components.

For which applications are micro inverters best suited?

Micro inverters are ideally suited for the modular extension of smaller-scale PV systems. In particular, they lend themselves to challenging applications. These may involve e.g. partial shading, a complex roof structure, very small PV systems or different roof orientations. In addition, a string inverter system can be supplemented by micro inverters to enable operation of occasional shaded modules.

Possible applications for micro inverters are:

  • PV systems with varying roof orientations or shading
  • PV systems with different module types
  • Small PV systems
  • PV facade systems (BIPV) with a high incidence of shading

Is it simpler to install micro inverters than string inverters?

The planning and installation of micro inverters is extremely simple, as they use a Plug & Play system. Therefore, on the one hand, several planning stages are significantly reduced, such as the electrical configuration of modules and strings. On the other hand, you can save considerable cabling costs during installation due to the "daisy chain" principle of serial connection.

Language

Data sheet

SUNNY BOY 240 - Great things come in small packages SB240-DEN1442web.pdf
  • Type: Data sheet
  • Language: English (Worldwide)
  • Number: SB240-DEN1442
  • Version:
SUNNY BOY 240 (only for Australien Market) - Great things come in small packages SB240-DEN1442web.pdf
  • Type: Data sheet
  • Language: English (Worldwide)
  • Number: SB240-DEN1442web
  • Version:
SMA Warranty Concept - Security. Guaranteed. GARANTIE-DEN1609.pdf
  • Type: Data sheet
  • Language: International
  • Number: GARANTIE-DEN1609
  • Version: 1.1

Promotion Material

PV INVERTER RESIDENTIAL POSTER_RESIDENT--AEN1416.pdf
  • Type: Promotion Material
  • Language: English (Worldwide)
  • Number: POSTER_RESIDENT--AEN1416
  • Version:

Installation Guide

Installation Manual - SUNNY BOY 240 / SUNNY MULTIGATE SMG-SB240-IA-en-12W.pdf
  • Type: Installation Guide
  • Language: English (Worldwide)
  • Number: SMA-SB240-IA-en-12
  • Version: 1.2
SUNNY BOY 240 - Montageübersicht der Wechselrichter / Aperçu de montage des onduleurs / Installatie-overzicht omvormer SB240-Plan-IA-de-fr-nl-10W.pdf
  • Type: Installation Guide
  • Language: International
  • Number: SB240-Plan-IA-de-fr-nl-10
  • Version: 1.0
SUNNY BOY 240 - Resumen de montaje de los inversores / Quadro di montaggio degli inverter / Quadro da montagem dos inversores SB240-Plan-IA-es-it-pt-10W.pdf
  • Type: Installation Guide
  • Language: International
  • Number: SB240-Plan-IA-es-it-pt-10
  • Version: 1.0

Brochure

SMA SERVICE - Medium Power Solutions - Information for Installers SERVICEMPS-KEN132411.pdf
  • Type: Brochure
  • Language: English (Worldwide)
  • Number: SERVICEMPS-KEN132411
  • Version: 1.1
SUNNY BOY 240 - Flexible. Extendable. Effortless. SB240_Faltblatt_EN_1420W.pdf
  • Type: Brochure
  • Language: English (Worldwide)
  • Number: SB240_Faltblatt_EN_1420W
  • Version:

Firmware

SUNNY BOY 240 / SUNNY MULTIGATE - Firmware update SMA_Multigate-10_Package_V010311R_SB240_V010318.zip
  • Type: Firmware
  • Language: International
  • Number: SMA_Multigate-10_Package_V010311R_SB240_V010318
  • Version: 01.03.11.R/1.03.18

Certificate

Certificate G83/2 - SUNNY BOY 240-10 + Muligate-10 ZE_G83-2_SB240-10_en_10.pdf
  • Type: Certificate
  • Language: English (Worldwide)
  • Number: ZE_G83-2_SB240-10_en_10
  • Version: 1.0
EN 50438/2007 type test report for SB 240-10 with Irish deviations (Ireland) ZE_EN50438_2007_IE_SB 240-10_10.pdf
  • Type: Certificate
  • Language: English (Worldwide)
  • Number: ZE_EN50438_2007_IE_SB 240-10_10
  • Version: 1.0
Certificate G59/3 - SUNNY BOY 240 / SUNNY MULTIGATE (SB 240-10 / Multigate-10) ZE_G59-3_SB 240-10_en_11.pdf
  • Type: Certificate
  • Language: English (Worldwide)
  • Number: ZE_G59-3_SB240-10_en_11
  • Version: 1.1
Certificate of Compliance EN 50438 for SUNNY BOY 240-10 ZE_EN50438_SB240-10_en_10.pdf
  • Type: Certificate
  • Language: English (Worldwide)
  • Number: ZE_EN50438_SB240-10_en_10
  • Version: 1.0
Certificate of Suitability AS4777.2:2005, AS4777.3:2005 and AS3100:2009+A1-2 - SUNNY BOY 240-10 + MULIGATE-10 ZE_AS4777_SB240-10_CoS_en_10.pdf
  • Type: Certificate
  • Language: English (Worldwide)
  • Number: ZE_AS4777_SB240-10_CoS_en_10
  • Version: 1.0
Certificate of compliance - SB 240-10 with Multigate-10 ZE_VDE0126_SB240-10_en_10.pdf
  • Type: Certificate
  • Language: English (Worldwide)
  • Number: ZE_VDE0126_SB240-10_en_10
  • Version: 1.0
Certificate of compliance with EN61000-3-x and EN61000-6-x for SUNNY BOY / MULTIGATE (240-10 / Multigate-10) ZE_EN 61000-3-x_SB240-10_en_10.pdf
  • Type: Certificate
  • Language: International
  • Number: ZE_EN 61000-3-x_SB240-10_en_10
  • Version: 1.0

Technical information

Potential Induced Degradation (PID) - SUNNY BOY/SUNNY MINI CENTRAL/SUNNY TRIPOWER PID-TI-UEN113410.pdf
  • Type: Technical information
  • Language: English (Worldwide)
  • Number: PID-TI-UEN113410
  • Version: 1.0
Circuit Breaker - Sizing of Suitable Circuit Breakers for inverters under PV-specific conditions LSS-TI-en-43.pdf
  • Type: Technical information
  • Language: English (Worldwide)
  • Number: LSS-TI-en-43
  • Version: 4.3
Efficiency and Derating - SUNNY BOY / SUNNY TRIPOWER / SUNNY MINI CENTRAL WirkungDerat-TI-en-40.pdf
  • Type: Technical information
  • Language: English (Worldwide)
  • Number: WirkungDerat-TI-en-40
  • Version: 4.0
Criteria for Selecting a Residual-Current Device - Use of Residual-Current Devices for SUNNY BOY, SUNNY MINI CENTRAL and SUNNY TRIPOWER RCD-TI-en-43.pdf
  • Type: Technical information
  • Language: English (Worldwide)
  • Number: RCD-TI-en-43
  • Version: 4.3

Manufacturers Declaration

Manufacturer’s Declaration - Usage of residual-current devices (RCD) of type A with Sunny Boy or Sunny Tripower inverters HK_RCD-Typ-A_en_12.pdf
  • Type: Manufacturers Declaration
  • Language: English (Worldwide)
  • Number: HK_RCD-Typ-A_en_12
  • Version: 1.2
Document of compliance for the operation of SMA inverters in combination with Module Power Maximizers MPS-ZE-HK-PMMax-en-11.pdf
  • Type: Manufacturers Declaration
  • Language: English (Worldwide)
  • Number: MPS-ZE-HK-PMMax-en-11
  • Version: 1.1
Manufacturer’s Declaration - Ammonia Resistance SB-SMC-STP-ZE-HK-Amon-en-10.pdf
  • Type: Manufacturers Declaration
  • Language: English (Worldwide)
  • Number: SB-SMC-STP-ZE-HK-Amon-en-10
  • Version: 1.0
Manufacturer’s Declaration - Response of PV inverters to a grid handicap in the form of high proportions of harmonic voltage distortion (THDV) HK_Beeinflussung-durch-THD_en_10.pdf
  • Type: Manufacturers Declaration
  • Language: English (Worldwide)
  • Number: HK_Beeinflussung-durch-THD_en_10
  • Version: 1.0
Manufacturer's Declaration - Minimum Clearances to Neighbouring Devices/Inverters SB-SMC-STP-ZE-HK-Derating-en-10.pdf
  • Type: Manufacturers Declaration
  • Language: English (Worldwide)
  • Number: SB-SMC-STP-ZE-HK-Derating-en-10
  • Version: 1.0
Manufacturer’s Declaration - Coastal installation of Sunny Boy and Sunny Tripower Inverters HK_MeeresnaheAufstellung_en_12.pdf
  • Type: Manufacturers Declaration
  • Language: English (Worldwide)
  • Number: HK_MeeresnaheAufstellung_en_12
  • Version: 1.2
EU Declaration of Conformity - SUNNY BOY (SB 240-10, Multigate-10) ZE_CE_SB240-10_MG-10_en_11.pdf
  • Type: Manufacturers Declaration
  • Language: English (Worldwide)
  • Number: ZE_CE_SB240-10_MG-10_en_11
  • Version: 1.1
Manufacturer’s Declaration - Confirmation of Compliance with the Requirements of C 10/11:2012 MPS-ZE-C10_11_2012-en-19.pdf
  • Type: Manufacturers Declaration
  • Language: English (Worldwide)
  • Number: MPS-ZE-C10_11_2012-en-19
  • Version: 1.9
Manufacturer's Declaration - Static MPPT Efficiency of 99.8% with OptiTrac ZE-HK-MPPT-SB-STP-SC-en-13.pdf
  • Type: Manufacturers Declaration
  • Language: International
  • Number: ZE-HK-MPPT-SB-STP-SC-en-13
  • Version: 1.3

Forms

APPLICATION FOR SMA GRID GUARD-CODE GRIDGUARD-ZEN151321.pdf
  • Type: Forms
  • Language: English (Worldwide)
  • Number: GRIDGUARD-ZEN151321
  • Version: 2.1
ORDER FORM - SMA REMOTE SERVICE BRemote-ZE-en-16.pdf
  • Type: Forms
  • Language: International
  • Number: BRemote-ZE-en-16
  • Version: 1.6

What is a Micro Inverter?

This new comic video shows why the Sunny Boy 240 is the ideal inverter for a flexible, modular PV system.

Watch the video »

The new Sunny Boy 240

The easiest way to take part in the Energy Transition: With this micro inverter, PV system operators have access to an easy-to-install and expandable modular solution for various applications.

Watch the video »