Huawei SmartGuard- 1ph Backup Box
£350.00 + VAT
Backup Box B0 for 1ph System
#1: HUA-BACKUP-BOX-B0
Backup Box Data Sheet
Backup Box Manual
Backup Box Warranty
Huawei Backup Box – Automatic Residential PV Backup Solution
The Huawei Backup Box ensures reliable backup power for residential rooftop solar PV systems. It automatically detects grid failures and switches your inverter to off-grid mode, supplying power to critical loads without interruption. When the grid is restored, it seamlessly switches back to grid-tied operation.
Key Features
Automatic Grid Failure Detection & Switchover: Provides uninterrupted power during outages.
Supports Off-Grid Backup Loads: Keeps essential appliances running when the grid fails.
Seamless Grid Recovery: Automatically returns to normal grid-tied operation.
Compatible Huawei Inverters: Works with SUN2000-2/3/3.68/4/4.6/5/6KTL-L1 models.
Applications
Ideal for residential rooftop PV systems where backup power is required for essential loads, ensuring peace of mind and energy continuity.
Fox ESS | EPS Box-SP | 1-Phase | Backup Gateway
£425.00 + VAT
Fox ESS EPS Box-SP 1ph Backup Box Solar Power Backup UK
#3: 7325 Storage Systems | Management Solution
Fox EPS 1ph Backup Box Datasheet
Fox EPS 1ph User Manual
Reliable Single-Phase Backup Power Solution
The Fox ESS EPS Box-SP 1ph Backup Box is a robust and versatile power management solution designed for residential and commercial solar energy systems. Housed in a durable IP65-rated metal enclosure, this unit ensures long-lasting protection against dust, water, and environmental conditions, making it suitable for both indoor and outdoor installations.
Engineered for seamless integration, the EPS Box-SP works effortlessly with Fox ESS H1, AC, KH, and EVO inverters. It allows automatic switching between On-Grid and Off-Grid states, guaranteeing uninterrupted and flexible backup power when it’s needed most.
Key Features
Single-phase backup solution for residential & commercial applications
Durable IP65-rated enclosure for all-weather protection
Automatic grid/off-grid switching for continuous power supply
Easy installation & integration with Fox ESS inverters
Reliable power flow management for improved safety and performance
Technical Specifications
General Information
Product Name: Fox ESS EPS Box-SP 1ph Backup Box
Compatibility: Fox ESS H1, AC, KH, EVO inverters
Application: Residential & commercial solar installations
Dimensions & Weight
Dimensions: 660 x 515 x 235 mm
Gross Weight: 19.3 kg
Enclosure & Protection
Material: High-strength metal casing
Protection Rating: IP65 (dustproof & waterproof)
Why Buy the Fox EPS Box-1phase Backup Box?
The Fox ESS EPS Box-SP ensures your solar energy system continues to deliver power even in the event of a grid outage. With its automatic transfer capability, rugged design, and compatibility with Fox ESS inverter systems, it provides reliable, efficient, and secure backup power tailored for UK households and businesses.
EcoFlow 1ph Gateway Backup Box
£665.00 + VAT
EcoFlow Single Phase Gateway – Whole-Home Backup & Energy Management
#3: 7613
EcoFlow 1ph Gateway Backup Box
EcoFlow Single Phase Gateway – Whole-Home Backup & Energy Management
EcoFlow Single Phase Gateway – Whole-Home Backup & Energy Management
Upgrade your home energy system with the EcoFlow Single Phase Gateway, a high-capacity power management solution designed for seamless whole-home backup. Built to handle up to 100A mains supply, the gateway intelligently manages multiple energy inputs and integrates directly with your main distribution board, enabling a clean, efficient and installer-friendly setup.
With an ultra-fast 0 ms switchover time, the EcoFlow Single Phase Gateway ensures uninterrupted power during grid outages, protecting sensitive appliances and maintaining comfort without disruption. Its robust design, wide operating temperature range and silent natural convection cooling make it suitable for demanding residential environments.
Key Benefits & Performance
• True whole-home backup with support for up to 100A mains• Instant 0 ms switchover for uninterrupted power supply• Designed for direct integration with the main electrical panel• Silent operation with natural convection cooling• Long service life backed by a 15-year manufacturer warranty
Connectivity & System Integration
• Ethernet, RS485 and CAN communication interfaces• Digital input (DI) and digital output (DO) support• Enables intelligent energy monitoring and system coordination
Electrical Specifications
• Nominal AC voltage: 220 / 230 / 240 V• Nominal AC current: 100 A• Nominal AC power: 22 / 23 / 24 kW
Environmental & Mechanical Specifications
• Protection rating: IP54• Operating temperature range: -30°C to +55°C• Cooling method: Natural convection• Noise emission: <30 dB
Physical Dimensions & Warranty
• Dimensions: 465 × 380 × 160 mm• Weight: 15 kg• Warranty: 15 years
This EcoFlow Single Phase Gateway is an ideal choice for homeowners seeking a reliable, future-ready energy management solution that delivers seamless backup power, intelligent control and long-term reliability.
Huawei SmartGuard- 3ph Backup Box
£665.00 + VAT
Backup Box B1 for 3ph System
#1: HUA-BACKUP-BOX-B1
Backup Box Data Sheet
Backup Box Manual
Backup Box Warranty
Huawei Backup Box B1 – Three-Phase Systems
Part No: HUA-BACKUP-BOX-B1Category: Energy Storage System Accessory
The Huawei Backup Box B1 enables automatic detection and seamless switchover between grid-connected and backup operation, providing reliable backup power for three-phase residential PV and battery storage systems.
Designed to work alongside compatible Huawei hybrid inverters, the Backup Box intelligently manages the system’s operating state to ensure continuity of supply during grid outages.
How It Works
Normal operation: The inverter operates in a grid-tied state
Grid outage detected: The Backup Box automatically signals the inverter to switch to off-grid (backup) mode, supplying power to designated backup loads
Grid restoration: The system automatically transitions back to grid-tied operation once supply is restored
This automated process ensures uninterrupted power to critical loads without manual intervention.
Key Benefits
Automatic grid failure detection and recovery
Seamless transition between grid-tied and off-grid operation
Reliable backup power for selected circuits
Designed specifically for three-phase residential systems
Fully integrated with Huawei inverter architecture
Sigenergy Sigenstor | 3-12kW Gateway HomeMax | 1ph | Communication Hub
£683.00 + VAT
Sigenergy Gateway HomeMax Series Single Phase 3-12kW
#2: SIG-GATEWAY-SP-12K | Storage Systems | Communication Module
Sigenergy Sigenstor Brochure
Sigenergy Sigenstor HomeMax Datasheet
Sigenergy SigenStor HomeMax Warranty
To view our full Sigenergy collection page click here
For a bespoke quote complete our quote form here
Complete Backup for your Home and Solar Needs
Enhance your smart home energy system with the Sigenergy Sigenstor Gateway HomeMax Single Phase, designed for 3–12kW Energy Controllers. This advanced communication module ensures seamless integration, reliable backup switching, and full control over your energy usage — making it the perfect addition to your SigenStor solar storage setup.
Key Benefits
Seamless Backup Switching
Automatically switches to backup mode for uninterrupted power supply
Flexible Energy Control
Compatible with generators, heat pumps, or other controllable loads
Whole Home or Partial Backup
Choose the setup that fits your energy needs
Enhanced Protection
350 ms reverse power flow protection for both grid and generator
Future-Ready Design
Supports integration with PV, ESS, grid, and generator for maximum reliability
Technical Specifications
Model Details
Product Name: Sigenergy Sigenstor Gateway HomeMax Single Phase (3-12kW)
Part Number: SIG-GATEWAY-SP-12K
System Type: Storage System Communication Module
Phase: Single Phase
Compatible Controllers: 3–12kW Energy Controllers
Functionality
Multiple breaker positions reserved for SigenStor or other loads
Seamless transition to backup mode for worry-free energy use
Supports whole home backup & partial home backup
Ready for integration with generator, heat pump, or other controllable loads
350 ms reverse power flow protection for grid & generator
Provides uninterrupted power supply via PV + ESS / grid / generator
Why Choose the Sigenergy Sigenstor Gateway HomeMax?
The Sigenergy Gateway HomeMax Series is built for UK households looking to maximise energy independence. By acting as the central communication hub for your SigenStor all-in-one energy storage system, it delivers:
Uninterrupted Power Security – Will ensure essential appliances run during outages.
Energy Optimisation – Smartly balances energy between solar, battery, and grid.
Scalable Flexibility – Adapts to whole-home or partial backup setups.
Future-Proof Integration – Ready for EVs, heat pumps, and advanced home energy systems.