Sofar 5kW ESI-5K-T1 hybrid inverter 3-phase 5.5kVA WiFi BTS 5K socket IP66
Product code: ME5511
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.
Product features
Inverter parameters
- Inverter power up to 5 kW
- Inverter type Hybrid
- Number of phases Three-phase
- Power [kW] 5
Description
Sofar ESI-5K-T1 is a three-phase hybrid inverter rated at 5 kW (5.5 kVA), designed for integration with BTS energy storage systems. The device features WiFi connectivity and numerous safety functions described in the installation and operation manual. The model supports operation modes typical for storage systems and includes features helpful during commissioning and maintenance.
The ESI-5K-T1 offers extensive connection and communication options and is intended for installation according to manufacturer guidelines; the manual contains detailed installation procedures and safety instructions. The inverter works with dedicated BTS batteries and allows configuration of operating parameters through built-in interfaces.
Key features
- Rated power 5 kW (5.5 kVA)
- Built-in WiFi and extensive communication interfaces
- Designed for use with BTS batteries (BTS 5K socket)
- Installation and commissioning manual with operation modes and safety description
- Installation aids: DC/AC connections, measurements and safety tests
Complete your installation
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