The TOMZN TOMPD-63LW is an all-in-one DIN-rail smart circuit breaker, energy meter, and comprehensive electrical protection device. Operating over 2.4 GHz Wi-Fi via the Tuya / Smart Life apps, it combines real-time kWh power monitoring with customizable over-voltage, under-voltage, over-current, and residual leakage protection. It acts as a primary smart gatekeeper for residential sub-panels, solar systems, or industrial loads.

Specifications

• Model: TOMPD-63LW
• Rated Voltage: 230V AC (50Hz / 60Hz)
• Maximum Rated Current: 63A (Adjustable trip threshold: 1A to 63A)
• Under-Voltage Protection Range: 140V – 210V AC (Default: 170V)
• Over-Voltage Protection Range: 225V – 295V AC (Default: 265V)
• Leakage Current Protection: Integrated ground fault monitoring
• Action/Trip Delay Time: 1s to 30s (Action time: ~200ms for leakage)
• Reconnect Delay Time: 1s to 500s (Default: 30s auto-recovery)
• Energy Calibration Range: -9.9% to +9.9% (Voltage/Current/kW offset adjustment)
• Wireless Protocol: Wi-Fi 2.4 GHz (Tuya / Smart Life ecosystem)
• Display: Front LCD screen showing live V, A, kW, and total kWh
• Mounting: Standard 35mm DIN Rail

Key Features

• Multi-Stage Protection Engine: Continuously monitors line conditions and cuts off power when voltage drops, surges, or current spikes exceed your predefined safe thresholds.
• Integrated Leakage Detection: Acts as an electronic residual current device (RCD) to protect against short circuits, insulation failure, and shock hazards.
• Real-Time Energy Metering: Logs power metrics (kWh consumption, live wattage, voltage, and current) straight to the mobile app for energy auditing and bill tracking.
• Auto-Recovery / Reconnect Delay: Automatically restores power once grid voltage or load conditions stabilize within safe bounds, preventing short-cycling attached inductive loads like compressors or pumps.
• Smart Automation & Timers: Supports app-based countdown timers, daily scheduling, and smart linkage scenes (e.g., turning off heavy loads during peak tariff hours).
• Voice Control Integration: Fully compatible with Amazon Alexa and Google Assistant for hands-free switching.

Configuration & Wiring Points

• IN (Top Terminals): Connect incoming main AC grid supply (Line and Neutral).
• OUT (Bottom Terminals): Connect outgoing load circuits.
• Front Buttons (SET / Up / Down): Used for local configuration of protection thresholds and manual calibration directly on the device without requiring an active Wi-Fi connection.

Common Applications

• Main Distribution Sub-Panels: Protecting sensitive home appliances against bad grid regulation, brownouts, or lightning-induced voltage spikes.
• Solar Inverter System Gates: Monitoring net power draw and isolating solar tie-ins during grid fluctuations.
• EV Charging & Heavy HVAC Lines: Setting strict current ceilings to prevent line overloads when charging vehicles or running high-power HVAC equipment.
• Rental Property Power Management: Remote tracking of energy usage and automated cut-offs via the Smart Life app.

Usage & Installation Tips

• Wiring Orientation: Always strictly respect the IN (Grid) and OUT (Load) terminal directions. Reversing the input and output lines can disable the relay trip mechanism or damage the internal power supply module.
• Manual Parameter Override: While most settings can be synchronized via the Tuya/Smart Life app, full parameter access (including precise calibration offsets) can also be programmed using the physical buttons on the front panel.
• Leakage Trip Diagnostics: If the breaker trips due to leakage current, resolve the underlying wiring insulation issue or moisture fault before attempting to reset the load output.