Petit tuto , comment je l’ai fait fonctionner ! 
Création du fichier des « External definitions »
ici : /homeassistant/zigbee2mqtt/tuya_zbn_dj_63.js
contenu du fichier :
const fz = require('zigbee-herdsman-converters/converters/fromZigbee');
const tz = require('zigbee-herdsman-converters/converters/toZigbee');
const exposes = require('zigbee-herdsman-converters/lib/exposes');
const reporting = require('zigbee-herdsman-converters/lib/reporting');
const modernExtend = require('zigbee-herdsman-converters/lib/modernExtend');
const e = exposes.presets;
const ea = exposes.access;
const tuya = require("zigbee-herdsman-converters/lib/tuya");
const definition = {
fingerprint: tuya.fingerprint('TS0601', ['_TZE204_lb0fsvba']),
model: 'ZBN-DJ-63',
vendor: 'NoName',
description: 'Zigbee DIN energy meter',
fromZigbee: [tuya.fz.datapoints],
toZigbee: [tuya.tz.datapoints],
configure: tuya.configureMagicPacket,
whiteLabel: [{vendor: 'XOCA', model: 'DAC2161C'}],
exposes: [tuya.exposes.switch(), e.energy(), e.power(), e.voltage(), e.current(),
exposes.enum('fault', ea.STATE, ['clear', 'over_current_threshold', 'over_power_threshold',
'over_voltage threshold', 'wrong_frequency_threshold']).withDescription('Fault status of the device (clear = nothing)'),
exposes.enum('threshold_1', ea.STATE, ['not_set', 'over_current_threshold', 'over_voltage_threshold'])
.withDescription('State of threshold_1'),
exposes.binary('threshold_1_protection', ea.STATE_SET, 'ON', 'OFF')
.withDescription('OFF - alarm only, ON - relay will be off when threshold reached'),
exposes.numeric('threshold_1_value', ea.STATE_SET)
.withDescription('Can be in Volt or Ampere depending on threshold setting. Setup the value on the device'),
exposes.enum('threshold_2', ea.STATE, ['not_set', 'over_current_threshold', 'over_voltage_threshold'])
.withDescription('State of threshold_2'),
exposes.binary('threshold_2_protection', ea.STATE, 'ON', 'OFF')
.withDescription('OFF - alarm only, ON - relay will be off when threshold reached'),
exposes.numeric('threshold_2_value', ea.STATE)
.withDescription('Setup value on the device'),
exposes.numeric('reverse_energy', ea.STATE).withUnit('kWh')
.withDescription('Reverse Energy Total'),
exposes.numeric('temperature', ea.STATE).withUnit('°C')
.withDescription('Temperature'),
exposes.binary('clear_fault', ea.STATE_SET, 'ON', 'OFF')
.withDescription('Turn ON to clear last the fault'),
exposes.text('meter_id', ea.STATE).withDescription('Meter ID (ID of device)'),
],
meta: {
tuyaDatapoints: [
[1, 'energy', tuya.valueConverter.divideBy100],
[3, null, null], // Monthly, but sends data only after request
[4, null, null], // Dayly, but sends data only after request
[6, null, tuya.valueConverter.phaseVariant2], // voltage and current
[9, 'fault', tuya.valueConverterBasic.lookup({'clear': 0, 'over_current_threshold': 1,
'over_power_threshold': 2, 'over_voltage_threshold': 4, 'wrong_frequency_threshold': 8})],
[11, null, null], // Frozen - strange function, in native app - nothing is clear
[16, 'state', tuya.valueConverter.onOff],
[17, null, tuya.valueConverter.threshold], // It's settable, but can't write converter
[103, 'temperature', tuya.valueConverter.raw],
[20, 'clear_fault', tuya.valueConverter.onOff], // Clear fault
[13, null, null], // Balance energy
[110, 'reverse_energy', tuya.valueConverter.divideBy100], // Reverse Energy Total
[23, null, null], // Forward Energy T3 - don't know what this
[24, null, null], // Forward Energy T4 - don't know what this
],
},
};
module.exports = definition;
Ajout dans le fichier de config de ZegBee2MQTT:
ici : /homeassistant/zigbee2mqtt/configuration.yaml
On lui donne le nom du fichier a charger + passage des logs en mode Debug (Si besoin)
advanced:
network_key:
- 98
...........
...........
homeassistant_legacy_entity_attributes: false
legacy_api: false
legacy_availability_payload: false
log_level: debug
external_converters:
- tuya_zbn_dj_63.js
mqtt:
base_topic: zigbee2mqtt
Enfin restart de ZegBee2Mqtt
Résultat:
Voila, il y possiblement des fonctions qui ne marchent pas ou absentes , mais en attendant d’avoir une solution 100% officielle. Ça fonctionne pour tester et utiliser le joujou 
Les protections de fonctionnent pas, j’arrive pas a envoyer des valeurs « push ».
L’interrupteur fonctionne ainsi que la consomation est le compteur Kw/h.
Merci aux membres pour leur aide 