# Huawei Energy Management Assistance | EMMA-A02

- **Brand:** Huawei
- **SKU:** 568-6897256808607
- **Price:** 299.00 EUR
- **Availability:** In stock
- **Categories:** Zubehör

The Huawei Energy Management Assistant EMMA-A02 is an intelligent device designed to optimize energy planning, management, and distribution within residential and commercial photovoltaic (PV) systems. By integrating metering, communication, and management functions, EMMA-A02 enables real-time monitoring of energy production and consumption, facilitating seamless communication between your appliances and the smart PV system.

**Specifications:**

**Model**: EMMA-A02

**Dimensions (W × H × D)**: 108 mm × 100 mm × 65 mm

**Weight**: 0.5 kg

**Mounting Type**: DIN35 Rail

**Degree of Protection**: IP2X

**Operating Temperature Range**: –25°C to +60°C

**Storage Temperature Range**: –40°C to +85°C

**Relative Humidity Range**: 5% – 95% RH (non-condensing)

**Maximum Operating Altitude**: 4000 m (derating over 2000 m)

**Voltage Measurement Range**:

Single-phase (L-N): 85 – 299 V AC

Three-phase (L-L): 148 – 520 V AC

**Current Measurement Range**:

Direct connection: ≤ 63 A

External CT: > 63 A (secondary current: 50 mA, cable length ≤ 30 m)

**Energy Measurement Accuracy**: Class 1 (±1%)

**Communication Interfaces**:

RS485 (2 ports, baud rates: 9600 / 19200 / 115200 bps, length ≤ 50 m)

LAN/WAN: 10/100 Mbps, length ≤ 100 m

WLAN: 802.11b/g/n (2.412 GHz – 2.484 GHz)

**Digital Inputs/Outputs**: 2 digital inputs and 2 digital outputs (length ≤ 20 m)

**LED Indicators**: RUN (operation), ALM (alarm), COM (communication)

**Reset Button**: Supports Wi-Fi wake-up, password reset, and factory settings restoration

**Device Management Capacity**:

Smart Energy Controllers: up to 3

Smart Chargers: up to 2

Heat Pumps: up to 1 (direct connection), more via Shelly devices

Shelly Devices: up to 20