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EMMA-(A01, A02)
User Manual
Ports
AC power input
DI port
DO port
RS485 port
External CT port
LAN port
WAN port
WLAN
Current
measurement
range
Electric energy
precision
Issue 05 (2024-01-19)
8
● 100–240 V; 50 Hz/60 Hz; 63 A (maximum)
● 346–415 V; 3W+N; 50 Hz/60 Hz; 63 A (maximum)
● 346–415 V; 3W; 50 Hz/60 Hz; 63 A (maximum)
Two DI ports; passive relay dry contact connection
supported; communications cable length ≤ 20 m; cables not
routed separately; cables routed through pipes
(recommended)
Two DO ports, NO and COM contacts supported;
communications cable length ≤ 20 m; cables not routed
separately; cables routed through pipes (recommended)
Two RS485 ports; baud rates: 9600 bit/s, 19200 bit/s, or
115200 bit/s
● Three current detection pins: IA, IB, and IC
● Secondary side: 50 mA
● Primary side:
● Communications cable length ≤ 30 m; cables not routed
separately; cables routed through pipes (recommended)
One 10/100 Mbit/s adaptive port; communications cable
length ≤ 100 m
One 10/100 Mbit/s adaptive port; communications cable
length ≤ 100 m
RAT and frequency band: 802.11b/g/n (2.412–2.484 GHz)
● Internal CT connection: ≤ 63 A
● External CT connection: > 63 A
Class 1 (error within ±1%)
Copyright © Huawei Digital Power Technologies Co., Ltd.
Technical Specifications
N x 50 A ( N ≥ 2, and N is an integer)
8 Technical Specifications
48
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