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Residential Solar & Energy Storage

Protection for Connected Home Energy Systems

Residential solar and storage systems bring together PV arrays, inverters, batteries and household circuits. Each part requires protection and isolation suited to its voltage, current and operating conditions.
Pronto helps installers and distributors source selected DC and AC protection products, with support for specification review, product documentation and order coordination.
House with a rooftop photovoltaic array and home energy equipment

How Pronto Supports Your Project

Product Matching

Compare protection and isolation products against inverter requirements, circuit ratings and installation conditions.

Samples & Small Orders

Evaluate selected products through samples and flexible quantities before purchasing for installation or repeat supply.

European Stock Support

Check availability in Poland and Hungary for selected products, with delivery options confirmed for your destination.

Where Our Products Fit

Explore typical protection and isolation points across the PV, battery and AC distribution sides of a residential system.
Residential system layout

Related Products

PV Fuse Holders & Fuses

Fuse protection for photovoltaic string circuits.

DC Surge Protection

Surge protection for the PV side of the system.

AC Circuit Breakers

Overcurrent protection for AC distribution circuits.

AC Surge Protection

Surge protection for residential AC distribution.

RCCBs & RCBOs

Residual-current protection selected for the circuit and inverter requirements.

What to Share With Us

Send the information available for your project so we can review product options and supply requirements.
Project Location & Application
System Voltage & Circuit Ratings
Inverter or Equipment Requirements
Product List & Quantities
Required Standards & Documentation
Delivery Destination & Schedule

Discuss Your Project Requirements

Share your product list, specifications or installation requirements. Our team can help review available options, supporting documents and delivery arrangements.
Pronto Solution Enquiry

What We Offer

Protection for a home rooftop, on both sides of the inverter

A house array is a short DC run into a string or hybrid inverter, then an AC board that already feeds lights and sockets. Pronto coordinates the low-voltage devices around that inverter: DC miniature breakers, PV fuses, DC and AC surge devices, and a residual-current breaker. Modules, inverters and batteries stay with the system supplier.

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Challenges

What shows up on a house job

AC breaker on the DC string

The footprint matches a DIN rail. It does not clear a DC fault in the string.

SPD below string Voc

Cold-weather open-circuit voltage sits above the Uc written on a general-purpose surge device.

RCCB that trips, or none at all

Inverter leakage and a household residual-current breaker are often picked independently.

A one-off part number

The next roof cannot reorder it, because the first bill of materials was never written down.

Playbook

How a house array is protected

  1. Read the string and the inverter

    Open-circuit voltage, short-circuit current, DC input and AC output. That is the sheet the devices are chosen from.

  2. DC side, before the inverter

    A PV fuse or a DC miniature breaker on the string, and a DC surge device at the inverter.

  3. AC side, on the existing board

    Miniature breaker, residual-current breaker and AC surge device on the inverter output, checked against the board already in the house.

  4. Write the list, then repeat it

    Datasheets go out with the first carton, so the next roof reorders the same part numbers.

House roof with a photovoltaic array

Architecture

Where the devices sit

Residential rooftop protection layout

The drawing shows the path from the array to the grid. Pronto coordinates the low-voltage protection on that path. Modules, inverters and batteries are not part of the supply.

Products

Devices used on this solution

DC MCBString and inverter DC input
DC FusePV string fuse holder
DC SPDSurge device on the DC side
RCCBInverter AC output

Contact

Send the specification, not a general enquiry

String voltage, inverter model and the board schedule are enough to start a device list. Stock and delivery are checked from Poland, Hungary and China.

  • String Voc, Isc and number of strings
  • Inverter DC input and AC output
  • Combiner inputs, if the strings meet in a box
  • Where the AC output lands
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Quick Contact

If you have any questions or need help, feel free to contact our team.

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Contact

Address East Fourth Road, High-tech Park, Nanbin Street, Ruian City, Zhejiang Province, China
E-mail info@pronto-energy.pl
Phone +86 17367172607
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