Fox ESS EPS Box SP Single Phase Whole Home Backup Gateway
The Fox ESS EPS Box SP (part number FE-EPS-BOX-SP, model EPS-BOX-SP) is a single-phase whole-home backup gateway that provides automatic switchover between grid and off-grid power during utility outages. With a maximum input current of 100 A per phase and a maximum output current of 100 A, the EPS Box SP supports full property backup when paired with a compatible Fox ESS hybrid inverter and battery system. It features a robust metal enclosure rated to IP65 for indoor or outdoor wall-mounted installation, weighs 16 kg, and measures 420 x 550 x 138.5 mm. Compatible with Fox ESS H1-G2, KH, and EVO series inverters. Available from DECO Group, a UK solar wholesaler for professional trade installers.
Key Technical Details
- Part number: FE-EPS-BOX-SP
- Supplier part number: EPS Box - SP
- Model: EPS-BOX-SP
- Product type: Single-phase whole-home backup gateway
Utility Supply Input
- Rated voltage: 220 / 230 / 240 V (L / N / PE)
- Rated frequency: 50 / 60 Hz
- Maximum input current (per phase): 100 A
Inverter Grid Connection
- Rated voltage: 220 / 230 / 240 V (L / N / PE)
- Rated frequency: 50 / 60 Hz
- Maximum input current (per phase): 63 A
Inverter EPS and Inverter 2 Connection
- Rated voltage: 220 / 230 / 240 V (L / N / PE)
- Rated frequency: 50 / 60 Hz
- Maximum input current (per phase): 63 A
Load Output
- Rated voltage: 220 / 230 / 240 V (L / N / PE)
- Rated frequency: 50 / 60 Hz
- Maximum output current (per phase): 100 A
General
- Communication interface: RS-485 Meter
- Cooling: Natural convection
- Installation: Wall-mounted
- Operating temperature range: -25°C to +60°C
- Ingress protection: IP65
- Enclosure: Robust metal
- Dimensions: 420 x 550 x 138.5 mm (W x H x D)
- Packing dimensions: 515 x 660 x 235 mm (W x H x D)
- Net weight: 16 kg
- Gross weight: 19.3 kg
Key Features
- Whole-home backup with automatic switching between on-grid and off-grid states during utility outages
- 100 A maximum input and output current per phase for full property backup capability
- IP65 rated robust metal enclosure for indoor or outdoor wall-mounted installation
- Natural convection cooling with no moving parts
- RS-485 meter communication interface
System Compatibility
- Compatible with Fox ESS H1-G2 hybrid inverters
- Compatible with Fox ESS KH series inverters
- Compatible with Fox ESS EVO series inverters
- Not compatible with three-phase inverter systems
- EPS Box only; inverter, batteries, and accessories are sold separately
Installation Notes
- Wall-mounted installation
- At 16 kg net weight, a two-person lift may be advisable depending on mounting height
- IP65 rated for indoor or outdoor mounting locations
- Operating temperature range: -25°C to +60°C
Common Questions
Click a question below to reveal the answer.
Which Fox ESS inverters are compatible with the EPS Box SP?
The EPS Box SP is compatible with Fox ESS H1-G2, KH, and EVO series single-phase inverters. It is not compatible with three-phase systems.
What does the Fox ESS EPS Box SP do?
The EPS Box SP is a whole-home backup gateway that automatically switches between grid power and inverter/battery backup during utility outages. It supports up to 100 A per phase, providing full property backup rather than protecting only selected circuits.
What are the dimensions and weight of the Fox ESS EPS Box SP?
The EPS Box SP measures 420 x 550 x 138.5 mm (W x H x D) and weighs 16 kg net. It is designed for wall-mounted installation.
Can the Fox ESS EPS Box SP be installed outdoors?
Yes. The EPS Box SP has an IP65 rated robust metal enclosure, making it suitable for both indoor and outdoor wall-mounted installation. It operates in temperatures from -25°C to +60°C.
DECO Group supplies Fox ESS backup solutions alongside compatible H1-G2, KH, and EVO hybrid inverters, battery modules, and system accessories. Browse our Fox ESS catalogue for complete single-phase hybrid and backup system components.
About DECO Group
We are a UK-based solar and energy storage wholesaler supplying backup power solutions, hybrid inverters, and battery storage systems to professional installers and electrical contractors. Our Fox ESS range covers the full system from inverter through to whole-home backup gateway, with all supporting hardware available for complete project specification. Visit decogroup.co.uk for the full range.
