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48V 5kVA 5.4kWh Backup Power System

The 48V 5kVA 5.4kWh Backup Power System provides reliable grid-charged backup for essential loads. It includes a Victron inverter, lithium battery storage, monitoring, and protection, all pre-assembled and professionally wired on a backboard for fast, efficient installation.

Retail price: R38,990.33 → R35,445.75 excl. VAT

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PRODUCT INFORMATION

Inverter

Victron MultiPlus-II 48/5000/70-50 230V

Battery

towerDOCK 5 lithium battery providing 5.4kWh

Monitoring

Victron Cerbo GX

DESCRIPTION

5kVA Backup Power System Overview

The 48V 5kVA 5.4kWh Backup Power System provides a reliable solution for maintaining power during grid outages. It combines proven Victron technology with lithium battery storage to ensure stable and uninterrupted supply to essential circuits.

In addition, all core components are pre-assembled, pre-wired, and mounted on a dedicated backboard assembly. This structured design keeps wiring neat, reduces installation time, and ensures a clean and consistent system layout. As a result, installers can complete installations quickly while maintaining high-quality standards.

Key Components

The system includes the following core components:

  • Inverter/Charger: Victron MultiPlus-II 48/5000/70-50 230V inverter manages grid charging and automatically switches to battery power during outages.
  • Battery: towerDOCK 5 lithium battery providing 5.4kWh of reliable, maintenance-free energy storage.
  • Monitoring: Cerbo GX device with enclosure for remote monitoring and system control.

What’s Included

The system is supplied as a fully integrated backboard solution. Therefore, it arrives ready for installation with all major components mounted and connected:

  • Backboard assembly with mounted components, wiring, and protection
  • DC protection and battery cable kit for safe operation
  • AC sub distribution board (AC1 – backup circuits only)
  • Communication cabling (VE.Direct and RJ45) with dual-band connectivity

What’s Not Included

  • Solar panels and solar charge controllers
  • Installation labour, site wiring, trunking, and mounting hardware
  • Final AC connections and Certificate of Compliance (COC)

Main Benefits

  • Reliable Backup Power: Keeps essential loads running during outages
  • Automatic Switchover: Seamless transition between grid and battery supply
  • Pre-Assembled Backboard Design: Enables faster and cleaner installation
  • Expandable Platform: Can be upgraded with solar at a later stage

In summary, the 48V 5kVA 5.4kWh Backup Power System provides a practical and ready-to-install solution for reliable backup power. It offers a clean and efficient way to protect essential loads without the immediate need for solar integration.

Furthermore, Specialized Solar Systems builds each unit with a strong focus on quality and consistency. The team assembles every system using trusted components and proven configurations. As a result, this system forms part of a growing range of reliable energy solutions designed for long-term performance.

Overview of Backup Power Systems

A backup power system stores energy from the grid and supplies it during outages. It automatically switches to battery power when needed. As a result, it ensures continuity for essential loads such as lighting, refrigeration, and communication systems.

Downloads

Victron Inverter Datasheet
Download
Victron Cerbo GX Datasheet
Download

Terms & conditions

Terms and Conditions for Online Sales: By proceeding with a purchase, you acknowledge and accept the terms stipulated herein. For further information, guidance, or to initiate a purchase, do not hesitate to contact us.

Thank you for your interest in Specialized Solar Systems

Orders, Pricing and Collection:
  1. Currently, only one of each product can be added to your shopping cart. 
  2. All prices displayed are exclusive of shipping costs and are based on ex-factory rates in George, Western Cape, South Africa.
  3. The listed prices are subject to potential fluctuations and remain valid for a 24-hour duration.
  4. Once your EFT payment is reflected in our account, customers are welcome to arrange collection at the Specialized Solar Systems factory located in George.
  5. Specialized Solar Systems can arrange courier pricing upon request. Please include the delivery address with your order.
Payment Process
  1. After completing your order, an email will be sent to you containing your unique order number along with the details of your order. You will also receive our banking information.
  2. To facilitate payment, we only accept Electronic Funds Transfers (EFT).
  3. When making your EFT payment, always ensure a reference to your order number business, or surname. This helps ensure the accurate and efficient processing of your payment. Please email PoP to accounts@specializedsolarsystems.co.za
  4. Once your EFT payment is reflected in our account, you will receive a tax invoice via email. This invoice will serve as confirmation of your payment and order details.
  5. Please ensure that your EFT payment is successfully processed and cleared in our bank account before requesting an update to coordinate the collection or status of your order.
Assistance and Inquiries
  1. Should you require any assistance or have questions, feel free to reach out to our dedicated customer support team at 044 878 1126 or info@specializedsolarsystems.co.za.
  2. If you haven’t already, we recommend considering an energy audit to help tailor our products to your specific needs.
  3. As part of our comprehensive service, we offer a skilled team of installers with a nationwide presence.
  4. Our experienced network of installers is well-equipped to ensure the smooth setup and integration of your chosen power system.
Privacy and Security
  • At Specialized Solar Systems, we take your privacy and the security of your information seriously. Here’s how we ensure your data is protected:
  • Data Protection: We handle your personal information with care and strictly adhere to applicable data protection laws.
  • Secure Transactions: Our website uses industry-standard encryption to secure your online transactions, keeping your payment information safe.
  • Limited Access: Only authorized personnel have access to your data, and it’s used solely for order processing and communication purposes.
  • No Selling: We never sell your personal information to third parties. Your privacy is our priority.
  • For more details, please refer to our Privacy Policy or contact our support team. 
  • Your trust matters to us.
​Terms Changes
  • At Specialized Solar Systems, we may update these terms and conditions from time to time. Here’s what you should know:
  • Any changes to these terms will be posted on our website. We may also notify you via email if the changes significantly impact your transactions with us.
  • Review the Updates: It’s your responsibility to review the updated terms. Continued use of our services after changes are made indicates your acceptance of the revised terms.
  • Effective Date: The date of the latest update will be clearly mentioned at the beginning of the revised terms.
  • We appreciate your understanding and encourage you to stay informed about our policies.

Victron Energy Products Range

Specialized Solar Systems: Victron Power, Perfected. As a certified Victron Energy distributor, Specialized Solar Systems delivers the ultimate in power solutions. We stand behind Victron’s unmatched quality, providing everything from inverters and chargers to advanced monitoring systems. Whether it’s off-grid, commercial, or mobile applications, Victron’s seamless ecosystem – with VictronConnect and VRM portal integration – ensures reliability, flexibility, and smart energy management. More importantly, you get complete system design, expert support, and full warranty coverage throughout Southern Africa. We’re with you every step of the way, ensuring your power is truly perfected.

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