Solar 1500V 20A 40A String PV Rapid Shutdown Firefighter Safety Remote Switch with Mc4

• Customization: Available
• Voltage Ui: 1500V
• Ithe: 55A
• Model NO.: ERS40-4-MC4
• Connector: Glands/Mc4/Knock Outs
• String: 1string-10string
• Pole: 2p/4p/6p/8p/9p/10p/12p/14p/16p/18p/20p
• Certificate: CE TUV CB
• OEM: Acceptance
• Current: 13A/20A/25A/40A/50A
• Transport Package: by Sea/Air/Courier
• Specification: 4 units/Carton
• Trademark: Aswich/ONCCY
• Origin: China
• HS Code: 850440
• Production Capacity: 1000000PC/Year
• Package Size: 45.00cm * 25.00cm * 55.00cm
• Package Gross Weight: 17.900kg

Product Description

Firefighter Safety Switch. Rapid Shutdown and Remote Disconnection in Photovoltaic Installations.
Rooftop photovoltaic installations need to have a safety device installed near the photovoltaic modules, which allows to disconnect the electric current to the building remotely. This will let extinguishing work to be carried out more safely in the event of an emergency.


What is a Firefighter Safety Switch?

The Firefighter Safety Switch is the perfect solution to protect rooftop solar installation in case of emergency or fire. A rapid shutdown device, capable of reaching a maximum circuit voltage of 1500 Vdc and breaking current up to 38A per circuit. It includes a combination of electronics for motoring AC current and a quick shutdown switch for disconnecting the DC circuits that come from the photovoltaic panels.


This rapid shutdown switch provides safety and protection against electric shocks or overtemperature to the photovoltaic installation, thanks to the automatic current breaking and resetting. It's applicable to residential, commercial or industrial installations.

Why install a rapid shutdown switch on rooftop PV installations?

More and more solar photovoltaic modules are being installed on roofs. To avoid unnecessary risks in case of fire or emergency, the use of a Firefighter Safety Switch provides a safe and secure environment. When there is fire and the solar panels are generating DC current, it is necessary to quickly and safely break the PV panels from the rest of the network system. The Safety Switch disconnects the power from the generation and reconnects it when there is no longer an electrical hazard.

How does the Safety Switch work?

In case of fire or emergency, the fireman turns off the AC power manually to extinguish the fire without risk of electric shock. To turn off the power, an AC enclosed compact switch-disconnector with emergency handle can be installed.


Once the current is cut off, the inverter interrupts the AC current throughout the electrical circuit upon detecting the loss of grid. When the current is lost, the Firefighter Safety Switch automatically interrupts DC current coming from the solar panels.


When the power is restored, the Firefighter Safety Switch automatically reconnects and allows the current to flow from the photovoltaic panels.

Where is the Firefighter Safety Switch installed?
This device is placed as close as possible to the solar panels. The closer it is to the modules, the lower the risk and the greater the protection and security it offers.

 

 

Our Advantages

1	It is applicable to a wide range of voltage and current, suitable for photovoltaic systems of 600V~1500V, 9A~55A, and a single switch can turn off up to 10 strings of current at the same time
2	Wider range of AC voltage:  100~270Vac
3	Use internal motor drive to disconnect. It can be turned off by an AC switch, or it can be turned off remotely
4	LED indicator, ON or OFF can be easily identify status
5	IP66 level, suitable for outdoor installation fully
6	Equipped with breathing valve to avoid condensation inside the enclosure
7	Low noise when running, which does not affect people's normal life
8	Built-in temperature sensor, Shut down automatically exceeding 70°C
9	Knock outs | Cable glands | MC4 connectors optional
10	Modular design of product components, fast and convenient after-sale service

 

Product Parameters

 

Detailed Photos

 

Production line

 

project cases