How Can I chose correct model of Rapid shutdown Switches for my solar system?

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 t

Solar Panel Junction Box with Rapid Shutdown Function for Solar Building Fire Safety

Name: Solar Panel Junction Box with Rapid Shutdown Function for Solar Building Fire Safety
Brand: Onccy Electrical Co.,Ltd
SKU: 1954388572

Shanghai, ChinaOnccy Electrical Co.,Ltd

US$20.90-49.90

10 Pieces

Sample price:US$180.00/piece.Request sample

Product profile

Customization

Available

Type

Ultrasonic Sensor Switch

Principle

Pyroelectric

Model NO.

ERP

Wires

PNP (Three-Wires)

Standard

Application

PV Solar System

Size

86 Type

Certification

ISO, GS, RoHS, CE

Input/Output Voltage

80V/80V

Rated Current

15A/25A

PV System Voltage

600V/1000V/1500V

Connector

Mc4

Protection Temperature

85° C

Certificate

CE TUV CB SAA

Warranty

10years

IP Grade

IP68

Mounting Type

Screw/Clip

Transport Package

Export Standard Carton

Trademark

Aswich

Origin

China

HS Code

850440

Production Capacity

1000000PC/Year

Key features

NEC 2017/2020 Compliance: Meets NEC 2017/2020 690.12 regulations for rooftop PV system fire safety.

Rapid Shutdown Capability: Single switch connects to 1 PV module; shuts down up to 10 strings simultaneously.

Wide Voltage Range: Applicable for PV systems from 600V to 1500V with current up to 55A.

IP66 Protection Rating: Fully suitable for outdoor installation with breathing valve to prevent condensation.

Color Customization: White, orange, and black color options are available for the unit.

Fire Retardant Material: Constructed with V-0 fire retardant and UV resistant materials for durability.

Modular Design: Fast and convenient after-sale service with modular product components.

Company profile

High Repeat Buyers ChoiceExhibition ExperienceImporters and ExportersNational Award received

Onccy Electrical Co.,Ltd

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤5.44h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryAswich Electrical Co., Ltd is an established electrical-component manufacturer founded in 1988, with more than 30 years of experience, a 30,000-square-meter production base, automated production lines, and stated annual DC isolator output of 1,000,000 pieces. It demonstrates broad customization capability, recent new-product activity, quality assurance, ISO9001:2015 and ISO14001 accreditation, and UL-related certification capability. Customer complaint handling is documented, but corrective and preventive actions for service capability lack written procedures or records. The supplier has valid manufacturing contracts with associated subcontractors but reports no inventory, overseas warehouse, overseas showroom, overseas agents, or branches. Financial information is present for multiple years, but the provided slices do not establish financial strength. No specific customer cases or named customers are supplied.

Supplier typeThe supplier is identified as an electrical and electrical-component manufacturer and seller, with experience manufacturing switches and circuit breakers since 1988. Its owned production base, laboratory, automated lines, and stated DC isolator output support classification as a manufacturer rather than only a trader.

CertificationsThe company is stated to hold ISO9001:2015 and ISO14001 accreditation, and its sustainable-development and product-certification capability lists UL and other certifications. These are explicit certification-related strengths, although the specific UL-certified products are not identified.

After-Sales capabilityThe supplier has a clear procedure and followed records for customer complaints, but it has no written procedures or records for corrective and preventive actions related to service capability. It also reports no inventory, overseas warehouse, overseas showroom, overseas agents, or branches, limiting evidence of local or rapid overseas support.

R&D capabilityThe supplier reports new products during the past year, high R&D investment, 50 total years of R&D engineer experience, and a national science and technology progress award. It does not provide an SDK and does not offer ODM services, but these limitations do not negate the explicit evidence of product R&D capability.

Production capacityProduction evidence includes a 30,000-square-meter plant, multiple automated production lines, an owned laboratory, valid contracts with each associated subcontractor, and stated DC isolator output of 1,000,000 pieces. Finished products are checked by packing staff, while no inventory capability is reported; overall manufacturing capacity is supported, but the inspection method appears limited in the provided information.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. This is reinforced by the listed design-service capability for customization from samples, demonstrating broad stated customization coverage.

Product Q&A

Q:If I'm interested in your DC Isolator when I can receive your quotation and detail information after send the enquiry?

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!

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?

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?

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?

We offer 2-5 year warranty for our customer depend on different product