55A PV String Level Firefighter Safety Smart Switches Solar Panel Fire Switch for Residential

• Customization: Available
• Pole: 8p
• Certificate: CE TUV CB SAA
• Model NO.: ERS
• Warranty: 5years
• OEM: Acceptance
• Voltage Ui: 1500V
• Rated Current: 40A
• Connector: Glands/Mc4/Knock Outs
• String: 4-20 String
• Transport Package: by Sea/Air/Courier
• Specification: 4 units/Carton
• Trademark: Onccy
• Origin: China
• HS Code: 8536490090
• Production Capacity: 1000000PC/Year

Product Description

Product Description

Firefighter Safety Switch Factory

Traditional photovoltaic systems often embed the DC isolator within the DC/AC power inverter. Consequently, even when the DC isolator is turned off, the pathways connecting DC solar modules to the inverter still carry up to a staggering 1000V DC, posing a formidable hazard during emergencies. That's where the innovative ONCCY Firefighter Safety Switch steps in. It offers a breakthrough solution by disconnecting the DC current near the solar modules, thus significantly enhancing the safety of firefighters during urgent situations.

1. MANUAL AC POWER SHUT DOWN

When confronting a blaze, the vital first operation for any firefighter is the deactivation of the main AC power circuit. This crucial step allows the safe commencement of efforts to

extinguish the fire without the looming threat of electrocution. Designed in alignment with global safety standards, the ONCCY Firefighter Safety Switch offers this essential protection, ensuring that firefighters face no additional hurdles during critical moments, thereby prioritizing their well-being and yours.

1. AUTOMATIC DC POWER SHUT DOWN

Upon the deactivation of the primary AC circuit by a firefighter, the system's ERS/ERP detects this status. Should the power-off condition continue for over 5 seconds, the

ERS/ERP seamlessly transitions to the OFF position. Strategically positioned near the PV modules, this ensures that the high-voltage DC current is entirely isolated, creating a secure environment for firefighters tackling fires in residential or commercial settings.

• AC power shut down = automatic DC power shut down
• Auto reset when AC power is back = DC power is back
• Effortless installation spanning small to extensive setups, whether existing or brand-new.
• Crafted using ONCCY's globally acclaimed DC switch technology

PV Array Level Rapid Shutdown 12-20 strings

Product Benefits

• Accommodates 12-20 string modules seamlessly
• Handles a maximum circuit current of 55A with ease
• Supports a maximum circuit voltage of 1500VDC
• Constructed with robust sheet metal, boasting an IP66 protection grade for superior durability
• Offers versatile interface options (knockout hole / gland / MC4 terminal)

Product Parameters

Rated Current	13:13A 20:20A 25:25A 40:40A 50:50A
Pole	10:10P
Wiring	Mc4: MC4 terminal / Blank

Main parameter	ERS
String voltage (VDC)	300~1500
String current (A)	9~55
Circuit	3/4/5
Connection mode of Isolation switch	10
Working voltage	100Vac - 270Vac
Rated voltage	230Vac
Rated current	30mA
Starting (loading) current	100mA(AVG)
Action current	300mA(Max)
Contact action condition	24Vdc -300mA(Max)
Operating temperature	-20°C - +50°C
Maximum temperature before automatic shutdown	+70°C
Storage temperature	-40°C - +85°C
Protection level	IP66
Over current protection	II
Authentication	CE
The DC isolation switch meets the standard	EN 60947-1&3
Mechanical life	10000
Number of loaded operations (PV1)	>1500

 

Detailed Photos

Company Profile

 

Frequently Asked Questions (FAQ)
Q: Are you a trading company or a manufacturer?
A: We are a proud manufacturer, boasting a sprawling, state-of-the-art facility covering 30,000 square meters.

Q: Do you possess any certifications?
A: Absolutely, our products are certified by UL, TUV, CB, SAA, CCC, CE, and a host of other prestigious certifications.

Q: How do you ensure a swift response to customer inquiries?
A: Our dedicated professional team is at your service, ready to respond through online platforms or via email, Skype, WhatsApp, and more.

Q: Do you have experience in exporting? To which countries have you previously exported?
A: We have substantial exporting experience with satisfied customers across the globe, including regions such as America, Japan, Australia, UAE, Canada, Vietnam, Turkey, Thailand, Russia, the UK, and beyond.

Q: Can you provide samples for evaluation?
A: Yes, we are pleased to supply samples upon request. Please contact us for further details on your specific requirements.

Q: What is your typical delivery time?
A: Typically, delivery is within 3 days for small quantities. Larger orders generally take about 15-20 days.

Q: What packaging standards do your products adhere to?
A: Our products are packaged according to export standards, with options for special packaging based on customer preferences.

Q: How is product inspection conducted?
A: Our comprehensive inspection system spans from raw materials to finished products, including transient tests, delay tests, mechanical life tests, and more. Q: What services does your company offer?

A: Our seasoned engineering team excels in designing and developing molds to meet diverse customer needs. Our proficient sales team ensures exceptional service from pre-sale consultations to after-sale support.