String Level Rapid Shutdown

Firefighter Safety Switch YRSD-5A
Firefighter Safety Switch YRSD-5A

Firefighter Safety Switch YRSD-5A

● 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

YRSD-1A toYRSD-10A

String voltages (Vdc)

1000V

1500V

String current (A)

40A

26A

Number of strings

1 to 10

Switch wiring

2/4

Operating voltage

100Vac-270Vac

Nominal voltage

230Vac

Nominal current

30mA

Start up (loading) current

average 100mA

Switch on action current

max 300mA

Feedback contact

24Vdc-300mA max

Operating temperature range

-40°C-+70°C

Max. operating temperature

before automatic switch off

+70°C

Storage temperature range

-40°C-+85°C

Protection degree

P66

Protection level

Class lI

Certiflcation

CE

DC Switch disconnect according to

EN 60947- 1&3

Number of operations

10000

Number of operations under load(PV1)

> 1500

 

Diagram

 

Dimensions of YRSD


 

Message

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