Hybrid Inverter Selfa SFH 6.1 6 kW 3F HV Full Backup 2 MPPT WiFi/LAN
Product code: ME0141
The Selfa SFH 6.1 Three-Phase Hybrid Inverter (6 kW, 3F, HV, Full Backup, 2 MPPT, WiFi/LAN) is an advanced power management unit engineered for optimized self-consumption and energy resilience. It seamlessly integrates photovoltaic generation with high-voltage (HV) battery storage and delivers robust three-phase emergency power (Full Backup) during grid outages. Equipped with dual independent Maximum Power Point Trackers (2 MPPT) for versatile roof layouts and built-in WiFi/LAN connectivity, it provides reliable, 24/7 remote telemetry and system monitoring.
Shipping costs are not included in the price.
Shipping costs are not included in the price.
Shipping & Returns
Master Energy | Master Investment Sp. z o.o.
1. Right of Return (14 Days)
Individual consumers (B2C) have the right to withdraw from the contract and return purchased items within 14 calendar days from delivery without stating a reason.
2. How to submit a return or claim?
- 📧 E-mail: pv@masterenergy.eu
- 📞 Phone: +48 884 570 201
- 🏢 Registered Address: Master Investment Sp. z o.o., Rondo ONZ 1, 00-124 Warsaw, Poland (VAT ID: PL7010345632)
3. Complete terms and conditions
Detailed freight information, pallet shipping methods, and B2B commercial terms are available at our dedicated information page:
Payment methods
Instant Payments
You can pay for your order immediately using any available payment method. All payment data is encrypted and secured by an SSL certificate.
- Credit & Debit Cards – Visa and Mastercard, processed securely by Stripe.
- Apple Pay – convenient digital wallet checkout in one tap on Apple devices.
- Google Pay – seamless payment with stored cards in Google Wallet.
- BLIK – 6-digit code authorization (available for Polish transactions).
- PayPo – buy now, pay in 30 days or in flexible installments.
- Klarna – buy now, pay in 30 days without extra fees.
- Instant Bank Transfer – automated bank transfer through PayU.
- PayPal – secure multi-currency payment directly from your PayPal account.
Traditional Payments
- Bank Transfer – direct wire transfer to our bank account. Proforma invoice and details are sent by email.
- Cash on Delivery – pay the courier upon package delivery (maximum 10,000 PLN per order).
Installments
PayU Installments – split your order into manageable monthly payments with an instant online application process.
Ask about the product
Administratorem danych osobowych jest Master Investment sp. z o.o.. Przetwarzamy je w celu przesłania odpowiedzi na zapytanie. Więcej informacji dotyczących przetwarzania danych osobowych znajduje się w polityce prywatności.
Description
The Selfa SFH 6.1 is a next-generation 6 kW three-phase hybrid inverter engineered to serve as the core energy routing hub for modern residential and light-commercial installations. Built for uncompromising reliability, it unifies PV generation, high-voltage battery storage, and redundant backup power into a single streamlined architecture.
High Voltage (HV) Architecture – Maximum Conversion Efficiency
The SFH 6.1 is designed to interface directly with high-voltage (HV) battery storage systems. Compared to traditional 48V low-voltage (LV) setups, HV architecture drastically lowers operational current on the DC bus, cutting thermal dissipation, improving round-trip charge/discharge efficiency, and allowing smaller cable gauges without resistive losses.
True 3-Phase Full Backup – Reliable Island Mode Operation
Grid failures no longer mean site downtime. The integrated Full Backup function delivers balanced three-phase emergency power across the entire installation.
Seamless transition to island mode keeps critical loads operational (servers, heat pumps, automation, security systems).
Eliminates manual phase shifting or compromising by restricting backup to isolated single-phase circuits.
Dual Independent MPPT Trackers – Multi-Orientation Optimization
Featuring two independent MPPT trackers with an expansive operational voltage window, the SFH 6.1 handles complex roof layouts with ease. Whether arrays are split across east-west orientations or varying tilt angles, it extracts peak power density even under variable irradiance or partial shading.
Telemetry, Connectivity, and Local Control (WiFi / LAN)
The inverter comes equipped with an integrated communication interface supporting both wireless WiFi and hardwired LAN (Ethernet) connectivity.
Continuous telemetry data streaming to the monitoring cloud.
Instant diagnostics, event logging, and real-time generation, consumption, and battery state visualization.
Reliable data transmission via dedicated RJ45 Ethernet in environments with RF attenuation.
Key Technical Specifications:
Rated AC Power: 6,000 W (6 kW)
Grid Connection Type: Three-phase (3L+N+PE, 400 V)
Battery Compatibility: High-Voltage (HV) Li-Ion
MPPT Trackers: 2 (1 string per MPPT)
Emergency Mode: Full Backup (three-phase output)
Communication Interfaces: WiFi / LAN / RS485 / CAN
Net Weight: 26 kg
Ingress Protection: IP65 (indoor/outdoor rated)
Cooling: Natural convection / intelligent forced cooling (low acoustic footprint)
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