Technical Documentation for Sinotimer DTS6619-3PN-L Three-Phase Energy Meter, WiFi Tuya, Dual

• Product Identity:
• Type: Smart three-phase energy meter, 3P+N
• Model: DTS6619-3PN-L
• Brand: Sinotimer
• Main Functions: Monitoring energy consumption/production, multiple protections, control and reading via Tuya Smart / Smart Life app

• Features:
• Overvoltage protection
• Undervoltage protection
• Overcurrent protection
• Overpower protection
• Delay protection
• Electronic timer switch
• Dual energy monitoring (consumption and feed to grid)
• Voltage imbalance protection
• Current imbalance protection
• Phase loss protection
• Phase sequence protection
• Overheating protection
• Leakage current protection (available via external transformer)
• Note: Functions 8-12 are adjustable exclusively through the mobile application.

• Technical Specifications:
• Rated voltage: 3 x 230/400 V AC, 50/60 Hz
• Rated / maximum current: rated 100 A (with external transformer for leakage current measurement)
• Accuracy class: 1.0 (integrated MCU, high precision measurement)
• Connectivity: WiFi 2.4 GHz, compatible with Tuya Smart / Smart Life
• Display: Multifunction color LCD, selectable display modes via buttons
• Enclosure material: Flame retardant thermoplastic, fire resistant
• Installation: on 35 mm DIN rail
• Unit dimensions: 89.5 x 73.5 x 75.3 mm (width x height x depth)
• Leakage transformer dimensions: 45 mm inner diameter, 78 x 83 mm external dimensions
• Included accessories: leakage sensor + 250 mm cables

• Display Functions:
• Mode 1: Total voltage and energy consumption
• Current and immediate consumption
• Immediate and reverse power (consumption versus feed-in)
• Power factor and frequency
• Mode 2: Parameters for phases A, B, C (voltage, current, power)
• Temperature and phase-to-phase power

• Connections and Installation:
• Inputs: L1, L2, L3, N from network/inverter
• Outputs: L1, L2, L3, N to circuit/consumers
• External transformer (CT) for leakage current: connected to special terminals for leakage detection
• Simplified connection diagram:
• Network / Inverter → DTS6619-3PN-L → Consumers
• L1 INPUT OUTPUT L1 load
• L2 INPUT OUTPUT L2 load
• L3 INPUT OUTPUT L3 load
• N INPUT OUTPUT N load
• CT (Leakage) special terminals (for leakage protection)

• Protections and Behavior:
• Automatic activation: in case of overvoltage, overcurrent, phase, or temperature exceedances
• Automatic reset: after parameters return within limits, power supply is restored according to settings
• Alarms and reports: via Tuya Smart / Smart Life app, with real-time notifications

• Advantages:
• Integration into Smart Home systems (Tuya / Alexa / Google Assistant)
• Dual monitoring (consumption and photovoltaic feed-in)
• Advanced protections adjustable via app
• Clear and detailed display, including parameters for each phase
• Compact dimensions, quick installation on DIN rail