BYD Power Box SH3/3.7/4.6/5/6kW

BYD Power-Box SH 3 / 3.7 / 4.6 / 5 / 6K – Single-Phase Hybrid Inverter

The BYD Power-Box SH3 series is a powerful hybrid inverter line designed for residential solar + battery systems. With models ranging from 3 kW up to 6 kW, this inverter integrates PV generation, battery storage, and backup functionality into a compact, efficient package.

Key Features

1. High Efficiency & Reliability – Up to 97.7% maximum efficiency ensures excellent conversion of solar energy into usable AC output.
2. Dual MPPT & Oversizing Support – Two MPPT channels allow flexibility in string layout, and the inverter supports up to 200% PV oversizing for future-proofing.
3. Strong Backup Capability – Seamless transition between grid and off-grid in under 13 ms, with 200% peak output for surges during backup mode.
4. Battery Integration – Compatible with BYD Battery-Box HVE systems, with a battery charge/discharge current up to 35 A.
5. Smart Monitoring & Firmware Updates – Offers 24/7 remote monitoring, over-the-air (OTA) firmware updates, and diagnostic tools.
6. All-in-One Safety & Build – Includes DC Type II and AC Type III surge protection, arc-fault detection, and a quiet, naturally-cooled design

Technical Highlights (Typical for SH3 Series)

1. PV Input Range / Voltage: 80 ~ 550 V (Start up at 120 V)
2. Rated AC Output: 3 kW / 3.68 kW / 4.6 kW / 5 kW / 6 kW (models vary)
3. Backup Output: 2× rated power for short durations, < 13 ms switchover time.
4. Protection & Safety Standards: Anti-islanding, over-/under-voltage, overcurrent, surge protection, residual current monitoring, insulation monitoring.
5. Operating Range: –25 °C to +60 °C, IP65 enclosure, naturally cooled (no fan)
6. Dimensions & Weight: 480 × 480 × 180 mm, ~20 kg

Why Choose the BYD Power-Box SH3?

The SH3 series offers a balanced combination of performance, flexibility, and compact design. It is ideal for homeowners who want to harness solar + battery and expect strong backup capability during grid outages. With smart monitoring, dual MPPT, and peak power support, it's built to support modern energy needs, especially when paired with BYD Battery-Box HVE systems.

Datasheet_BYD-Power-Box-SH3-6K-V1_EN.pdf