Firefighter Safety Switch Factory

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Rapid Shutdown Device Factory

ONCCY’Rapid Shutdown Device (Firefighter Safety Switch) Factory is dedicated to manufacturing high-quality switches designed to ensure enhanced safety for emergency response teams. With advanced features and robust construction, our switches provide reliable disconnection of power sources during firefighting operations. Trust our expertise in firefighter safety and choose our switches to enhance the protection of lives and property. Contact us today to discover our range of firefighter safety switches and prioritize safety in critical situations.

In most photovoltaic systems, the dc isolator is integrated into the dc/ac power inverter. After switching off the dc isolator, the cables between the dc solar modules and dc/ac power inverter running through the building are still subject to up to 1000 v dc. in the event of a fire, firefighters are exposed to a very serious source of potential danger. The ONCCY firefighter safety switch provides the solution. It directly disconnects the dc current in close proximity to the solar modules and creates a safer situation for firefighters.

  1. MANUAL AC POWER SHUT DOWN

The first step for any firefighter in fighting a fire is to shut down the main AC power circuit. This makes it possible to start extinguishing the actual

fire without the risk of electrocution. Onccy developed the Firefighter safety Switch according to this standard international safety routine. This prevents firefighters from having to take any extra action in case of a fire, maximizing their and your safety in the event of a fire.

  1. AUTOMATIC DC POWER SHUT DOWN

As soon as a firefighter shuts down the main AC circuit, the ERS/ERP will detect this. If this power down situation lasts longer than 5 seconds, the

ERS/ERP will automatically switch to the OFF position. Since the ERS/ERP is located close to the PV modules, the high voltage DC current from the PV modules will be completely isolated, which leaves a safe situation for the firefighters when fighting a fire in the commercial or residential building.

  • AC power shut down =automatic DC power shut down
  • Auto reset when AC power is back = DC power is back
  • Easy to install for small to large, existing and new installations
  • Based on the world’s most used DC switch from ONCCY
Firefighter Safety Switch Factory

Features and Benefits

  • Over-temperature protection (85°C)
  • IP66 aluminium enclosure
  • One, two, three or four string models available
  • Emergency shutdown button for rapid disconnect
  • Includes: AC connector, wall fixings and MC4 connectors
  • If a firefighter disconnects the AC power to the home, the switch will open the circuit and disconnect the DC power coming from the panels off the roof.
Firefighter Safety Switch Factory
Firefighter Safety Switch Factory

Applications and Markets

As soon as a firefighter shuts down the main AC circuit, the ERS/ERP will detect this. If this power down situation lasts longer than 5 seconds, the ERS/ERP will automatically switch to the OFF position. Since the ERS/ERP is located close to the PV modules, the high voltage DC current from the PV modules will be completely isolated, which leaves a safe situation for the firefighters when fighting a fire in the commercial or residential building.

FQA

What is a solar rapid shutdown switch?

A solar rapid shutdown switch is a safety device that quickly de-energizes a solar panel system in an emergency. This can help to protect firefighters and other personnel working near the system from electrical shock.

Why is a rapid shutdown switch required?

Solar panels can generate electricity even when the inverter is turned off. This is because the panels are still exposed to sunlight. A rapid shutdown switch helps to ensure that the panels are completely de-energized in an emergency, making it safer for people to work around them.

Where is the rapid shutdown switch located?

The rapid shutdown switch is typically located near the solar inverter. It may be mounted on the wall or on the inverter itself.

How do I use the rapid shutdown switch?

To use the rapid shutdown switch, simply flip the switch to the “off” position. This will de-energize the solar panel system.

What are the benefits of using a rapid shutdown switch?

The benefits of using a rapid shutdown switch include:

Increased safety for firefighters and other personnel working near the solar panel system
Reduced risk of electrical shock
Compliance with NEC 2014 and later

What are the different types of rapid shutdown switches?

There are two main types of rapid shutdown switches:

String-level rapid shutdown switches de-energize the entire string of solar panels.
Module-level rapid shutdown switches de-energize individual solar panels.

Which type of rapid shutdown switch is right for us?

The type of rapid shutdown switch that is right for you will depend on the size and type of your solar panel system. If you have a small system, a string-level rapid shutdown switch may be sufficient. However, if you have a large system or a system with microinverters, you will need a module-level rapid shutdown switch.

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