SolarEdge Home Backup Interface BI-EUSGN-03
SolarEdge Home Backup Interface BI-EUSGN-03
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SolarEdge Home Backup Interface BI-EUSGN-03
BI-EUSGN-03
SolarEdge Home Backup Interface BI-EUSGN-03
The SolarEdge Home Backup Interface (BI-EUSGN-03) enables flexible whole-home or selected-load backup with fast switchover, an integrated auto-transformer for phase imbalance support, and a built-in PCS-certified energy meter. It supports up to three SolarEdge inverters and a generator input with 2-wire start to streamline resilient residential microgrids.
Key Benefits
Service-Entrance Ready: 200A Microgrid Interconnection Device with integrated main capability for BI-E models.
Fast Transfer: <100 ms grid-to-backup switchover to keep critical loads powered.
Scalable Power: Accepts up to three inverters (11.4 kW max per unit) for higher backup capacity.
Smarter Balance: Built-in auto-transformer provides up to 5 kW split-phase imbalance compensation.
Generator Integration: 22.5 kW generator input with 2-wire start and dry-contact control.
Special Technology
Integrated Metering: PCS-certified energy meter (-03) enables Busbar Current Management and accurate import/export monitoring.
SE Ecosystem: Seamless operation with SolarEdge Home Hub and StorEdge inverters; RS485 communications.
Warranty
12-Year Manufacturer Warranty.
Best Uses
Whole-Home or Critical-Load Backup: Configure for the entire home or selected loads.
PV + Storage + Generator Hybrids: Coordinate multiple sources for extended outages.
Retrofits & New Installs: Clean interconnection for new builds or upgrades.
Specifications Table
| Specification | Data |
|---|---|
| Model | BI-EUSGN-03 (Backup Interface, North America) |
| Type | Service-entrance backup interface with built-in auto-transformer & meter |
| Nominal AC Voltage | 240 Vac split-phase (L1/L2/N) |
| AC Voltage Range | 211 – 264 Vac |
| Frequency | 60 Hz (operating range 59.3 – 60.5 Hz) |
| Microgrid Interconnection Device Rating | 200 A |
| Service-Side Main Breaker (BI-E) | 200 A, 10 kA interrupt |
| Grid Disconnection Switchover | < 100 ms |
| Output to Loads | Max 200 A; 240 Vac L-L; 120 Vac L-N (105–132 Vac in backup) |
| Backup Frequency Range | 55 – 65 Hz |
| Inverter Inputs | Up to 3; 11,400 W / 48 A max (on-grid & backup) |
| Factory Installed Inverter CB | 1 × 63 A (-03 models); upgradable up to 3 × 40/63 A |
| Imbalance Compensation | 5,000 W |
| Generator Support | 22,500 W max; 94 Aac continuous; 2-wire start; dry contact 250/30 Vac/Vdc, 5 A |
| Communications | RS485; 2 comm inputs |
| Protection Rating | NEMA 3R / IP44 |
| Operating Temperature | -40 to +122 °F (-40 to +50 °C) |
| Noise | < 50 dBA |
| Cooling | Fan (user replaceable) |
| Dimensions (H × W × D) | 20.59 × 13.88 × 8.62 in |
| Weight | 73 lb |
| Conduit / AWG (Grid) | 2" / 4 – 4/0 AWG |
| Conduit / AWG (Loads) | 2" / 4 – 4/0 AWG |
| Conduit / AWG (Inverter) | 1" / 14 – 4 AWG |
| Conduit / AWG (Generator) | 1" / 8 – 3 AWG |
| Conduit / AWG (Comms) | 3/4" / 24 – 10 AWG |
| Supported Inverters | SolarEdge Home Hub; StorEdge Single-Phase |
| Warranty | 12 Years |
About SolarEdge:
SolarEdge Technologies, founded in 2006 in Israel, is a global leader in smart energy. They pioneered DC‑optimized solar inverters paired with module‑level power optimizers that boost system performance, increase safety, and simplify monitoring. Serving residential, commercial, and utility-scale markets, SolarEdge also offers storage, EV charging, UPS, grid services, and energy management platforms. They support over 47,000 installers in 34 countries with solutions deployed in 140+ nations.
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