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: 1It 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 2Wider range of AC voltage:
100~270Vac3Use internal motor drive to disconnect. It can be
turned off by an AC switch, or it can be turned off remotely 4LED
indicator, ON or OFF can be easily identify status5IP66 level,
suitable for outdoor installation fully6Equipped with breathing
valve to avoid condensation inside the enclosure7Low noise
when running, which does not affect people's normal life8Built-in
temperature sensor, Shut down automatically exceeding 70°C9Knock
outs | Cable glands | MC4 connectors optional10Modular design of
product components, fast and convenient after-sale serviceFAQQ: 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
productQ: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 /* January 22, 2024
19:08:37 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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