Huawei Energy Management Assistant EMMA

The Energy Management Assistant (EMMA) is an advanced energy management system designed to efficiently control charging stations, SG Ready heat pumps, and Smart Switches. By replacing Huawei's Smart Meter in facilities, EMMA offers an integrated solution for energy management, allowing direct connection of phases up to 63 A and the use of current sensors for higher currents.

Main Features

Intelligent Management : Control of charging stations, SG Ready heat pumps and Smart Switches.
Wide Compatibility : Supports up to three inverters, two Huawei AC chargers, two SG-Ready heat pumps, and up to 20 Shelly devices.
Easy Installation : DIN35 rail mounting with a minimum required height of 47.5mm.
Connection Flexibility : Direct connection of phases up to 63 A and possibility of using current sensors for higher currents.

Technical Specifications

Dimensions (W × H × D) : 108 × 100 × 65 mm
Mounting Type : DIN35 Rail
Weight : 0.5 kg

Food

Network Type : 1P2W / 3P3W / 3P4W
AC voltage :
- 1P2W : 100~240V, 50/60Hz
- 3P3W : 346~415V, 50/60Hz
- 3P4W : 346~415V, 50/60Hz
Typical Consumption : 4W

Interface

Power Output : 9.5~13.2V @ 100mA, ≤ 3m
LAN : 10/100Mbps, ≤ 100m
WAN : 10/100Mbps, ≤ 100m
WLAN : AP + STA mode, 802.11b/g/n (2.412GHz ~ 2.484GHz)
RS485 : 9600 / 19200 / 115200bps, × 2, ≤ 50m
Digital Input : × 2, ≤ 20m
Digital Output : × 2, ≤ 20m

Measuring Range

Current Range : Direct connection ≤ 63 A, external sensors > 63 A
Voltage Range :
- 1P (LN) : 85 ~ 299 Vac
- 3P (LL) : 148 ~ 520 Vac
Energy Accuracy : ± 1%

Device Management

Intelligent Energy Controllers : Up to 3
Smart Chargers : Up to 2
Heat pump : Up to 2
Shelly Devices : Up to 20

Environment

Operating Temperature Range : -25℃ ~ +60℃
Storage Temperature Range : -40℃ ~ +85℃
Relative Humidity : 5% - 95% RH (non-condensing)
Max Operating Altitude : 4000 m (derating > 2000m)
Degree of Protection : IP2X

Compatible Devices

Intelligent Energy Controller :
- SUN2000-2-6KTL-L1
- SUN2000-8-10K-LC0
- SUN2000-3-10KTL-M1
- SUN2000-12-25KTL-M5
- SUN2000-12-25K-MB0
Smart Charger :
- SCharger-7KS/22KT-S0
Heat pump : SG-ready
Shelly Devices :
- Shelly Plus Plug S
- Shelly Plus 2PM
- Shelly Pro 2PM

Benefits

Efficient Energy Management : Simplifies and optimizes the management of different energy sources and connected devices.
Simplified Installation : Easy to mount and integrate into various energy system configurations.
Reliability and Durability : Designed to operate in harsh environmental conditions with a long service life.
Wide Compatibility : Supports a wide range of devices, providing great flexibility for energy installations.

For any application requiring intelligent and efficient energy management, Huawei's Energy Management Assistant A0X (EMMA) is the perfect solution, ensuring optimal performance and easy integration with existing devices.