Smart Home Energy Controller SA4H-A02, support for PV, ESS, smart chargers / loads e.g. SG Ready heat pumps / switches
Product code: ME7311
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 Smart Home Energy Controller SA4H-A02 is a device designed for managing PV systems, energy storage systems (ESS), smart chargers, and loads such as heat pumps (SG-ready) or heaters. It enables functions such as limiting power fed into the grid, preference for operation with PV, load peak shaving, automatic starting/stopping of diesel generators, and integration with dynamic tariff markets.
Manufacturer: The device is produced by HUAWEI — an international technology company specializing in energy and photovoltaic solutions. The technical data sheet describes the SA4H-A02 model along with its communication properties and measurement ranges.
Electrical and technical parameters
- AC voltage range: 1P2W: 100 ~ 240 V, 50/60 Hz; 3P3W / 3P4W: 346 ~ 415 V, 50/60 Hz
- Typical energy consumption: 4 W
- Power output: 9.5 ~ 13.2 V @ 100 mA, cable length ≤ 3 m
- Current measurement range: direct connection ≤ 63 A; using an external current transformer (CT) for currents > 63 A (secondary CT current = 50 mA, max. cable length up to 30 m)
- Voltage measurement range: 1P (L-N): 85 ~ 299 V AC; 3P (L-L): 148 ~ 520 V AC
- Energy measurement accuracy: ±1%
- Communication interfaces: LAN 10/100 Mbps ≤ 100 m; WAN 10/100 Mbps ≤ 100 m; WLAN AP+STA 802.11b/g/n (2.4 GHz); RS485 9600/19200/115200 bps ×2 ≤ 50 m
- Digital inputs/outputs: Digital input ×2 (≤ 20 m), Digital output ×2 (≤ 20 m)
- Communication functions and integrations: Modbus-TCP, integration with third-party devices, support for VPP and dynamic tariffs
Mechanical parameters
- Dimensions (S × W × D): 108 mm × 100 mm × 65 mm
- Mounting: DIN35 rail
- Height requirement in the cabinet: ≥ 47.5 mm
- Weight: 0.5 kg
- Protection rating: IP2X
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