Fire brigade switch for string inverters – SSSB

Fire brigade switches for photovoltaic installations with central inverters. Combines breaker box and surge protection into one box. This box comes in versions for 3, 4, 5 and 6 parallel solar strings. Suitable for larger photovoltaic installations with high security requirements.

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    • Product information
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    • Questions & Answers

    Questions & Answers

    • What is a fire brigade switch / fireman’s switch?

      The term “fireman’s switch” usually refers to a type of electrical switch used in firefighting operations to disconnect or shut off the power supply to specific electrical circuits or appliances in a building or other location. This type of switch allows a quick and easy disconnection of electricity in emergency situations, helping firefighters to work safely and efficiently without risking electric shocks or fires caused by the power supply.
      Fireman’s switches can be part of the overall emergency system such as fire alarms in a building and are usually placed at fire hydrants or other strategic locations. They can be equipped with a special handle, marking or color schemes to be easily identified by firefighters in an emergency situation. They are usually equipped with a fire brigade lock with a special key that all firefighters carry with them.
      It is important to note that the term “fireman’s switch” is not a standardized term and can be used in different ways depending on the specific context or region. It is always best to check with the relevant fire departments or electrical installation standards to get accurate information on the electrical equipment and protocols used in a particular location or organization.
      Fire brigade switches in photovoltaic systems usually consist of two parts, a switch button in an enclosure that requires a fire brigade key to open, and a switch box that is placed as close to the solar cells as possible. In this way, the cables from the solar cells are disconnected and de-energized up to the inverter. A fire brigade switch can also be used to separate a battery store or inverter. A fire brigade switch can also be connected to the fire alarm; if the fire alarm goes off, all electrical equipment connected to the fire brigade switch is switched off.

    • What is a fire brigade switch?

      A fireman’s switch is a safety device used by fire and rescue personnel to disconnect solar panels or battery banks from the building’s electrical panel. The aim is to ensure that there is no potential in the wires, reducing the risk of electric shocks and fires during rescue operations. The switch is used to quickly and easily disconnect the electrical system from solar cells or battery banks and isolate them from the property’s main power source. This is particularly important because PV systems can continue to generate electricity even after the property has been disconnected from the main grid, which can increase the risk of accidents if not properly insulated.


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    • Why do you need a fireman’s switch when you have solar panels?

      A fireman’s switch, also known as a fireman’s switch or PV cut-off switch, is used in conjunction with PV systems to facilitate disconnection of power in the event of a fire or other emergency. There are several important reasons why a fire protection switch should be installed in connection with photovoltaics:
      1. Fire safety: PV systems generate electricity from the sun’s rays and can be connected to the grid. In the event of a fire, it can be dangerous for emergency personnel to work near active photovoltaic systems because of the risk of electric shock. A fire brigade switch enables a quick and easy disconnection of the power supply to the PV system, reducing the risk of damage and facilitating fire-fighting operations.
      2. system maintenance: The fireman’s switch also allows maintenance personnel or PV installers to safely perform work on the PV system by disconnecting the power. This is important for carrying out regular inspections, maintenance and possible servicing of the system.
      3. grid connection: If the PV system is connected to the grid, the fire brigade switch can be used to disconnect the power supply from the PV cells to the grid in case of emergency. This can help to prevent possible power reductions or dangerous conditions for electricians during repairs or maintenance of the electricity network.

      It is important to note that the requirements and regulations for photovoltaic installations and fire switches may vary between countries and regions. It is always recommended to consult local regulations and experts in the field to ensure that the PV system is properly installed and equipped in terms of fire safety.

    • What is a solar switch?

      A photovoltaic switch is an electrical component used to connect or disconnect a photovoltaic installation from an electrical network. Its main purpose is to ensure that the solar cells do not overload or overheat, which can cause damage to the installation and pose a safety risk.

      Photovoltaic switches are usually used as a safety measure to disconnect the solar cells from the grid when there is a power outage or fault in the grid. This reduces the risk of electrical accidents and damage to the installation. The switch can also be used to switch off the PV system during maintenance or repairs.

      Solar switches come in different sizes and models and can be manual or automatic. They may also have various functions such as overcurrent and overvoltage protection to further ensure the correct and safe operation of the installation.

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