Solar PV 2-String1500V 1000V Rapid Shutdown Device Firefighter Safety Switch

Product Description

Rooftop type resident photovoltaic system has been widely used in China, the Australia, United States, Europe and Japan. However,Due to the loose contact of photovoltaic module joint, poor contact, wire damp, insulation rupture and other reasons, it is easy to cause the phenomenon of DC arc drawing, resulting in fire.  In addition, when a fire accident occurs due to arc pulling or external reasons, as far as the DC side is concerned, as long as there is a light component, it will generate electricity. High voltage always exists. Fire fighting work is very dangerous, and firefighters can not rescue the scene, but can only control the fire from a distance.  

As the application closest to the human activity area, how to ensure personal safety, how to prevent the fire risk of photovoltaic facilities, how to ensure that non-professional personnel identify and cut off the risk in the first time, has become a extensive concern in whole photovoltaic industry.

Based on the market rules demand, Aswich has successively launched ERS Rapid Shut-down Switch. String inverter is widely used in Residential & small and medium-sized Commercial solar photostatic system. The DC Isolator integrated in the inverter, the main function is to cut off the inverter dc when maintenance, but for the roof to the inverter part of the DC (600~1500V) powerless. In case of fire, firefighters may be exposed to very serious potential hazards. Firefighters will shut down the AC before putting out the fire, the ERS firefighter safety switch will detect the grid failure, and after 5 seconds, the ERS will automatically turn off the isolation switch.


 







10 reasons to choose Aswich ERS series Rapid Shut Down Switch:
 

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

FAQ

Q: If I'm interested in your DC Isolator when I can receive your quotation and detail information after send the enquiry?
A:All your enquiry will be replied in 24hours.

Q:Your DC Isolator seems perfect but what's the difference between you and other suppliers?Because I find some cheaper price from others!
A: Our DC Isolator is IP66 degree and they are high quality customized.for solar system I think compare the quality first and then compare the price is the best way.

Q:Can I get a sample before the order because I really don't how is your DC Isolator quality?
A:Of course!We also think sample order is the best way to build the trust.

 Q:How's the delivery?Because I really need them is urgently?
A:For sample order 3~7days will be no problem.And for regular order we promise in 15days.

Q:How's the warranty  period for your DC Isolator?
A:We offer 2-5 year warranty for our customer depend on different product

Q:How Can I chose correct model of Rapid shutdown Switches for my solar system?
A:For example:
The open-circuit voltage of each PV Panel is 39V, Aswich rapid shut down switches rated voltage is 1000V, so each route of MPPT max can connect PV panel quantity is 1000/39/1.15=22 pcs.
Such as your Solar Project has 162 pcs PV panel, so
162/22=8 sets of rapid shut down switches with 2 poles (ERS-2)
Or 162/22/2=4 sets of rapid shut down switches with 4 poles (ERS-4)
Or 162/22/4=2 sets of rapid shut down switches with 8 poles (ERS-8)
The Aswich rapid shutdown Current must be higher than the current of each string of your panels