String Level Rapid Shutdown

Rapid Shutdown Device YRSD-2A
Rapid Shutdown Device YRSD-2A

Rapid Shutdown Device YRSD-2A

● Firefighter Satety Switch for Solar System.

● Over temperature protection.

● Plug and play easy installation.

● IP66 aluminum durable enclosure.

● Emergency button for 100% disconnect.

Product Description


YRSD-A series firefighter safety switch is used to disconnect the direct current between solar panels and inverter, remove the DC high voltage in the PV string, and avoid the risk of electric fire.
YRSD-A series firefighter safety switch is designed to disconnect the DC current flow between solar panels and inverter. It is used as a safety measure to remove the high voltage DC power in the PV string and reduce the risk of electric fire. The switch is particularly useful for firefighters and emergency personnel who need to access a building or structure equipped with photovoltaic (PV) systems.
YRSD-A series firefighter safety switch is typically installed in a weatherproof enclosure, and it features a lockable handle that can be easily operated with gloves on. The switch is capable of interrupting up to 1000 volts DC and has a maximum current rating of 32 amperes. The switch is also equipped with arc suppression technology to prevent arcing during the switching process.
YRSD-A series firefighter safety switch is an essential safety device for PV system installations. It protects people and property from the hazards associated with DC power and allows for easy disconnection of the system in case of emergency.


About Rapid Shutdown
1.1 Intended Use of the Rapid Shutdown
The Rapid Shutdown has been especially developed as a safety device for direct current (DC) photovoltaic installations. The DC disconnect switch is used to disconnect the connected strings of the installation in case of an emergency situation.
Such an emergency situation could be in case of fifire.
1.2 Location of the Rapid Shutdown
The Rapid Shutdown needs to be placed as close to the solar panels as possible. Due to its enclosure, the switch is protected against external inflfluences like dust and moisture. The whole set-up is conformed to IP66 which makes it suitable for outdoor usage when needed.


Shutdown Mode

Technical data

Main Parameters


String voltages (Vdc)



String current (A)



Number of strings

1 to 10

Switch wiring


Operating voltage


Nominal voltage


Nominal current


Start up (loading) current

average 100mA

Switch on action current

max 300mA

Feedback contact

24Vdc-300mA max

Operating temperature range


Max. operating temperature

before automatic switch off


Storage temperature range


Protection degree


Protection level

Class lI



DC Switch disconnect according to

EN 60947- 1&3

Number of operations


Number of operations under load(PV1)

> 1500




Dimensions of YRSD



Related products

Solar Rapid Shutdown System YRSD-4A

Solar Rapid Shutdown System YRSD-4A

Click to Learn More

Firefighter Safety Switch YRSD-5A

Firefighter Safety Switch YRSD-5A

Click to Learn More

Rapid Shutdown DC Fire Module RSD

Rapid Shutdown DC Fire Module RSD

Click to Learn More

Related News

> What is rapid shutdown for solar?

If you have a solar panel system installed on your home, you may have noticed a switch box called a "Rapid Shutoff". So, what is this Rapid Shutoff switch? Why is it...

> what is a solar optimizer?

When it comes to solar optimizers, it can be confusing for those who are not in the field. What is a solar optimizer? This article will provide you with knowledge ab...

> Yirui Electronics Celebrates Success at Key Philippines Trade Show

Yirui Electronics, renowned for its leadership in the electrical appliances sector, has once again demonstrated its industry prowess with a stellar performance at a ...

> Join Yirui Electric at The Solar Show Philippines 2024

Unleashing the Potential of Renewable EnergyDate: May 20-21, 2024Venue: SMX Convention Center, Manila, PhilippinesBooth: Yirui Electric, BOOTH1-C19As the global dema...

We value your privacy
We use cookies to provide you with a better online experience, analyse and measure website usage, and assist in our marketing efforts.
Accept All