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Photonic Universe TBB Riio Sun II Hybrid Power Inverters

£671.00
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Delivery: Typical lead time 3–10 working days • Shipped from the UK
30-day returns on eligible items
Description

High-performance hybrid solar inverter for off-grid homes, backup power and energy storage.

Compact solar inverter that does everything in one unit. It provides smooth power during outages thanks to its fast switching and strong surge support. It is perfect for off-grid homes, backup systems and battery storage setups that need constant, stable power.

Compatibility

This solar inverter is compatible with a range of lead-acid and lithium batteries, as well as many generator brands, making it a versatile choice for various energy needs. Its ability to work without a battery offers added flexibility for users seeking different operational configurations.

Key Functions

  • All-in-one power solution: Combines a pure sine wave inverter, dual MPPT solar controller, and smart battery charger in a single compact unit for streamlined installation and maximum performance.
  • High surge capacity & ultra-fast transfer: Handles demanding loads with ease. Lightning-fast 4 ms transfer ensures uninterrupted power to essential appliances during outages.
  • Scalable & flexible: Can be paralleled: up to 3 units in single-phase or 9 units in three-phase setups, supporting maximum outputs from 27 kVA to 72 kVA for high-demand installations.
  • Dual MPPT technology: Supports multiple solar arrays with a max PV open-circuit voltage of 250V, optimizing energy harvesting for 5 kW, 6 kW, and 8 kW systems.
  • ESS & grid-tie ready:
  • Integrates with E4 LCD Monitor and IC-METER for energy storage management, self-consumption optimisation, peak shaving, and optional grid feed-in for utility credits.
  • AC transfer switch: Rated up to 32A, passing up to 7.36 kW from the AC input when in bypass mode.

Warranty

All Photonic Universe TBB Riio Sun II Hybrid Power Inverters are backed by a comprehensive 5-year manufacturer's warranty, giving you confidence in the quality and reliability of your investment.

Intelligent Features

  • Automatic Generator Start (AGS): Activates the generator only when needed, optimising energy use and efficiency.
  • Remote monitoring & control: Monitor and adjust system performance anytime via the Nova Web or mobile app with the TBB-KIN2 Kinergy-II Wi-Fi module.
  • Ultra-fast battery transfer: 4 ms switch ensures uninterrupted power during outages. ECO Mode extends backup time while keeping self-consumption extremely low.
  • High efficiency: Up to 95% inverter efficiency and 98% MPPT efficiency maximise energy capture and utilisation.
  • Hassle-free operation: All-in-one design simplifies installation and maintenance, with automatic restart when PV or AC power is restored.

*Please note: The option to work without a battery is only for single-use application with stable AC bypass supply, PV energy as a supplement for AC bypass.*

Specs

Dimension


3kW 24V 499 mm x 272 mm x 144 mm
5kW 48V / 6kW 48V 570 mm x 310 mm x 154 mm
8kW 48V 620 mm x 320 mm x 164 mm

Weight


3kW 24V 18 kg
5kW 48V 29 kg
6kW 48V 31 kg
8kW 48V 34 kg

Continuous power output


3kW 24V 3000W/3000VA (220-240V AC)
5kW 48V 5000W/5000VA (220-240V AC)
6kW 48V 6000W/6000VA (220-240V AC)
8kW 48V 8000W/8000VA (220-240V AC)

Peak power


3kW 24V 6000W
5kW 48V 10000W
6kW 48V 12000W
8kW 48V 16000W

Maximum mains AC charging current


3kW 24V 70A
5kW 48V 60A
6kW 48V 70A
8kW 48V 90A

AC transfer current


3kW 24V 32A
5kW 48V / 6kW 48V / 8kW 48V 50A

Zero load power


3kW 24V 17W
5kW 48V 22W
6kW 48V 25W
8kW 48V 32W

Maximum solar output current


3kW 24V 80A
5kW 48V / 6kW 48V / 8kW 48V 100A (50A per tracker)

Maximum charge power


3kW 24V 2300W @28.8V
5kW 48V / 6kW 48V / 8kW 48V 5760W @57.6V (2880W @57.6V per tracker)

Maximum PV open circuit


3kW 24V 150V
5kW 48V / 6kW 48V / 8kW 48V 250V

Maximum PV (power per tracker)


3kW 24V 3600W
5kW 48V / 6kW 48V / 8kW 48V 4400W + 4400W

MPPT voltage range


3kW 24V 40 - 145V
5kW 48V / 6kW 48V / 8kW 48V 65 - 245V

Altitude

<2000m

Nominal battery voltage

48V

AC Output frequency

50/60Hz

Output waveform

Pure sine wave

Peak efficiency

98%

Protection index

IP21

Operating temperature

-20°C to 65°C

Humidity

95% without condensation
Shipping

Shipping to the UK only

Shipping is free on orders delivered to UK mainland addresses. If any additional delivery costs apply, such as specialist delivery to a remote or non-standard location, these will be confirmed with you before dispatch.

Order Placed Processing Begins Order Cutoff
Mon–Fri Same Business Day 2:00 PM GMT
Weekends/Holidays Next Business Day N/A

How our deliveries work

Ecostride is a UK-based retailer supplying sustainable energy and water systems from established UK manufacturers.

Products are dispatched from UK-based supplier partners, with Ecostride remaining your point of contact throughout.


Order processing

All orders are processed within 1–3 business days (Monday to Friday, excluding holidays) once payment is authorized. Orders placed before 2:00 PM GMT (Monday–Friday) will begin processing the same business day.

You will receive a shipping confirmation email with tracking information as soon as your order has been dispatched.


Delivery times

We offer Free Standard Delivery on all orders to the UK mainland.

  • Standard Delivery Time: 3–7 business days from the date of dispatch.
  • Total Estimated Delivery: 4–10 business days from the date of order (includes handling and transit time; Monday–Friday).

Shipping Costs

Shipping is free for all products across our entire catalog with no minimum spend required. All prices shown on our website include VAT and standard delivery.

Undelivered or Delayed Orders

If you have not received a shipping update within 5 business days of placing your order, or if your delivery has not arrived within the estimated 10-day window, please contact us immediately at info@eco-stride.co.uk.

.


Shipping method

Standard Items: Smaller products, systems and accessories are delivered via tracked courier service.

Large or Heavy Items: Larger systems and equipment (such as wind turbines, water tanks, and rainwater harvesting systems) are delivered via specialist pallet courier to ensure safe transport.

Delivery Access: For products requiring specialist transport or additional handling, we will contact you within 1–2 business days of order placement to confirm delivery access requirements (e.g., narrow driveways, steps, or other delivery constraints) before dispatch.

Tracking: You will receive tracking information via email once your order has been dispatched.


Delivery locations

We currently deliver to UK mainland addresses.

For remote or non-standard locations, customers are advised to contact us before ordering to confirm availability and any additional delivery requirements.


Your point of contact

As we work with multiple UK suppliers, delivery arrangements may differ slightly between products. However, Ecostride remains your point of contact throughout the order process, and we will assist with any delivery-related queries.


Damaged items

Please inspect your order on deliv,ery where possible. If the outer packaging is visibly damaged, you may choose to note this with the courier.

If damage is discovered after delivery, please take clear photos of the packaging and item(s) as soon as possible and email them to info@eco-stride.co.uk along with your order number. We will review the issue and advise the next steps.

For full details, see our Returns Policy.

Need Help?

If you need assistance with anything at all, please don't hesitate to get in touch with us using our contact form or any of the methods below. We'd love to hear from you.

Ecostride is a trading name of Fitzpatrick Ecommerce Ltd., a UK-based online retailer of sustainable living systems registered in England & Wales.

https://eco-stride.co.uk/pages/contact-us

Company No: 16239750
Email: info@eco-stride.co.uk
Phone: +44 333 880 8681
Registered Address: 61 Bridge Street, Kington, HR5 3DJ

Why Buy From Us

We understand there is no shortage of online retailers offering sustainable energy and water systems. Choosing the right supplier matters, particularly when you’re investing in long-term infrastructure.

At Ecostride, our focus is on supplying well-engineered, proven products from established UK manufacturers, with clear information and dependable support throughout the buying process.

If you’d like to hear from customers who have already purchased through us, you can view independent reviews here.


UK Mainland Delivery

We offer free delivery on orders shipped to UK mainland addresses.
Where specialist transport or delivery to a remote or non-standard location is required, any additional costs will always be confirmed with you before dispatch.


30-Day Returns

Eligible items can be returned within 30 days of delivery in line with our Returns Policy.
We aim to make the process clear and straightforward, with full details available before you purchase.


Clear, Honest Product Information

We work directly with UK manufacturers and suppliers to present accurate product details, specifications, and realistic delivery expectations. We don’t oversell performance or make claims that can’t be supported in real-world conditions.


UK-Based Support

Ecostride is a UK-based retailer, and we remain your point of contact from order through to delivery. If you have questions before or after placing an order, our team is available to assist.


Carefully Selected Products

Every product we sell is chosen for its suitability, reliability, and track record. Our range focuses on practical systems designed for long-term use, whether for domestic, rural, or small commercial applications.

Description

High-performance hybrid solar inverter for off-grid homes, backup power and energy storage.

Compact solar inverter that does everything in one unit. It provides smooth power during outages thanks to its fast switching and strong surge support. It is perfect for off-grid homes, backup systems and battery storage setups that need constant, stable power.

Compatibility

This solar inverter is compatible with a range of lead-acid and lithium batteries, as well as many generator brands, making it a versatile choice for various energy needs. Its ability to work without a battery offers added flexibility for users seeking different operational configurations.

Key Functions

  • All-in-one power solution: Combines a pure sine wave inverter, dual MPPT solar controller, and smart battery charger in a single compact unit for streamlined installation and maximum performance.
  • High surge capacity & ultra-fast transfer: Handles demanding loads with ease. Lightning-fast 4 ms transfer ensures uninterrupted power to essential appliances during outages.
  • Scalable & flexible: Can be paralleled: up to 3 units in single-phase or 9 units in three-phase setups, supporting maximum outputs from 27 kVA to 72 kVA for high-demand installations.
  • Dual MPPT technology: Supports multiple solar arrays with a max PV open-circuit voltage of 250V, optimizing energy harvesting for 5 kW, 6 kW, and 8 kW systems.
  • ESS & grid-tie ready:
  • Integrates with E4 LCD Monitor and IC-METER for energy storage management, self-consumption optimisation, peak shaving, and optional grid feed-in for utility credits.
  • AC transfer switch: Rated up to 32A, passing up to 7.36 kW from the AC input when in bypass mode.

Warranty

All Photonic Universe TBB Riio Sun II Hybrid Power Inverters are backed by a comprehensive 5-year manufacturer's warranty, giving you confidence in the quality and reliability of your investment.

Intelligent Features

  • Automatic Generator Start (AGS): Activates the generator only when needed, optimising energy use and efficiency.
  • Remote monitoring & control: Monitor and adjust system performance anytime via the Nova Web or mobile app with the TBB-KIN2 Kinergy-II Wi-Fi module.
  • Ultra-fast battery transfer: 4 ms switch ensures uninterrupted power during outages. ECO Mode extends backup time while keeping self-consumption extremely low.
  • High efficiency: Up to 95% inverter efficiency and 98% MPPT efficiency maximise energy capture and utilisation.
  • Hassle-free operation: All-in-one design simplifies installation and maintenance, with automatic restart when PV or AC power is restored.

*Please note: The option to work without a battery is only for single-use application with stable AC bypass supply, PV energy as a supplement for AC bypass.*

Specs

Dimension


3kW 24V 499 mm x 272 mm x 144 mm
5kW 48V / 6kW 48V 570 mm x 310 mm x 154 mm
8kW 48V 620 mm x 320 mm x 164 mm

Weight


3kW 24V 18 kg
5kW 48V 29 kg
6kW 48V 31 kg
8kW 48V 34 kg

Continuous power output


3kW 24V 3000W/3000VA (220-240V AC)
5kW 48V 5000W/5000VA (220-240V AC)
6kW 48V 6000W/6000VA (220-240V AC)
8kW 48V 8000W/8000VA (220-240V AC)

Peak power


3kW 24V 6000W
5kW 48V 10000W
6kW 48V 12000W
8kW 48V 16000W

Maximum mains AC charging current


3kW 24V 70A
5kW 48V 60A
6kW 48V 70A
8kW 48V 90A

AC transfer current


3kW 24V 32A
5kW 48V / 6kW 48V / 8kW 48V 50A

Zero load power


3kW 24V 17W
5kW 48V 22W
6kW 48V 25W
8kW 48V 32W

Maximum solar output current


3kW 24V 80A
5kW 48V / 6kW 48V / 8kW 48V 100A (50A per tracker)

Maximum charge power


3kW 24V 2300W @28.8V
5kW 48V / 6kW 48V / 8kW 48V 5760W @57.6V (2880W @57.6V per tracker)

Maximum PV open circuit


3kW 24V 150V
5kW 48V / 6kW 48V / 8kW 48V 250V

Maximum PV (power per tracker)


3kW 24V 3600W
5kW 48V / 6kW 48V / 8kW 48V 4400W + 4400W

MPPT voltage range


3kW 24V 40 - 145V
5kW 48V / 6kW 48V / 8kW 48V 65 - 245V

Altitude

<2000m

Nominal battery voltage

48V

AC Output frequency

50/60Hz

Output waveform

Pure sine wave

Peak efficiency

98%

Protection index

IP21

Operating temperature

-20°C to 65°C

Humidity

95% without condensation
Shipping

Shipping to the UK only

Shipping is free on orders delivered to UK mainland addresses. If any additional delivery costs apply, such as specialist delivery to a remote or non-standard location, these will be confirmed with you before dispatch.

Order Placed Processing Begins Order Cutoff
Mon–Fri Same Business Day 2:00 PM GMT
Weekends/Holidays Next Business Day N/A

How our deliveries work

Ecostride is a UK-based retailer supplying sustainable energy and water systems from established UK manufacturers.

Products are dispatched from UK-based supplier partners, with Ecostride remaining your point of contact throughout.


Order processing

All orders are processed within 1–3 business days (Monday to Friday, excluding holidays) once payment is authorized. Orders placed before 2:00 PM GMT (Monday–Friday) will begin processing the same business day.

You will receive a shipping confirmation email with tracking information as soon as your order has been dispatched.


Delivery times

We offer Free Standard Delivery on all orders to the UK mainland.

  • Standard Delivery Time: 3–7 business days from the date of dispatch.
  • Total Estimated Delivery: 4–10 business days from the date of order (includes handling and transit time; Monday–Friday).

Shipping Costs

Shipping is free for all products across our entire catalog with no minimum spend required. All prices shown on our website include VAT and standard delivery.

Undelivered or Delayed Orders

If you have not received a shipping update within 5 business days of placing your order, or if your delivery has not arrived within the estimated 10-day window, please contact us immediately at info@eco-stride.co.uk.

.


Shipping method

Standard Items: Smaller products, systems and accessories are delivered via tracked courier service.

Large or Heavy Items: Larger systems and equipment (such as wind turbines, water tanks, and rainwater harvesting systems) are delivered via specialist pallet courier to ensure safe transport.

Delivery Access: For products requiring specialist transport or additional handling, we will contact you within 1–2 business days of order placement to confirm delivery access requirements (e.g., narrow driveways, steps, or other delivery constraints) before dispatch.

Tracking: You will receive tracking information via email once your order has been dispatched.


Delivery locations

We currently deliver to UK mainland addresses.

For remote or non-standard locations, customers are advised to contact us before ordering to confirm availability and any additional delivery requirements.


Your point of contact

As we work with multiple UK suppliers, delivery arrangements may differ slightly between products. However, Ecostride remains your point of contact throughout the order process, and we will assist with any delivery-related queries.


Damaged items

Please inspect your order on deliv,ery where possible. If the outer packaging is visibly damaged, you may choose to note this with the courier.

If damage is discovered after delivery, please take clear photos of the packaging and item(s) as soon as possible and email them to info@eco-stride.co.uk along with your order number. We will review the issue and advise the next steps.

For full details, see our Returns Policy.

Need Help?

If you need assistance with anything at all, please don't hesitate to get in touch with us using our contact form or any of the methods below. We'd love to hear from you.

Ecostride is a trading name of Fitzpatrick Ecommerce Ltd., a UK-based online retailer of sustainable living systems registered in England & Wales.

https://eco-stride.co.uk/pages/contact-us

Company No: 16239750
Email: info@eco-stride.co.uk
Phone: +44 333 880 8681
Registered Address: 61 Bridge Street, Kington, HR5 3DJ

Why Buy From Us

We understand there is no shortage of online retailers offering sustainable energy and water systems. Choosing the right supplier matters, particularly when you’re investing in long-term infrastructure.

At Ecostride, our focus is on supplying well-engineered, proven products from established UK manufacturers, with clear information and dependable support throughout the buying process.

If you’d like to hear from customers who have already purchased through us, you can view independent reviews here.


UK Mainland Delivery

We offer free delivery on orders shipped to UK mainland addresses.
Where specialist transport or delivery to a remote or non-standard location is required, any additional costs will always be confirmed with you before dispatch.


30-Day Returns

Eligible items can be returned within 30 days of delivery in line with our Returns Policy.
We aim to make the process clear and straightforward, with full details available before you purchase.


Clear, Honest Product Information

We work directly with UK manufacturers and suppliers to present accurate product details, specifications, and realistic delivery expectations. We don’t oversell performance or make claims that can’t be supported in real-world conditions.


UK-Based Support

Ecostride is a UK-based retailer, and we remain your point of contact from order through to delivery. If you have questions before or after placing an order, our team is available to assist.


Carefully Selected Products

Every product we sell is chosen for its suitability, reliability, and track record. Our range focuses on practical systems designed for long-term use, whether for domestic, rural, or small commercial applications.