Manual — Tomzn Tovpd1-60-ec

If the "Tomzn TOVPD1-60-EC" is a specific type of electrical or technical product, ensure you're looking at compatible and safe sources for your manual to avoid any misinformation.

TOMZN TOVPD1-60-EC is a multifunctional protection relay designed for single-phase electrical systems, offering integrated over-voltage, under-voltage, and over-current protection in a compact 35mm DIN rail mount format. Core Functionality and Features Three-in-One Protection

: It acts as a safeguard against electrical surges (over-voltage), brownouts (under-voltage), and overloads (over-current). Real-Time Monitoring

: The device features a dual LED display that shows current voltage (top) and active current (bottom). Automatic Recovery

: Once electrical conditions return to a safe range, the device automatically reconnects power after a user-defined delay. Fault Inquiry

: Users can check the cause of the last trip (e.g., "HU" for high voltage or "LU" for low voltage) by pressing and holding the button for more than 12 seconds. Key Technical Specifications

Title: Missing the paper manual? Here is the programming sequence.

Post: ⭐ 4/5 Stars – Works great once programmed.

The Tomzn TOVPD1-60-EC is a solid unit, but the manual is tiny and hard to read. For those installing it:

Programming cheat sheet:

Note: This is the 60A model. Make sure your wire gauge is at least 6 AWG (copper) or 4 AWG (aluminum).

The digital display is very accurate. If you see "E-03", your voltage is outside the programmed range. Just widen your U-Hi/U-Lo margins. tomzn tovpd1-60-ec manual

Would I buy again? Yes. But keep this post saved because the printed manual is microscopic!

Tip for you: If you need a specific diagram from the manual (wiring terminals, error codes, or mounting depth), reply here and I can transcribe the exact section from the OEM manual PDF.

The TOMZN TOVPD1-60-EC is an adjustable 230V AC (50/60Hz) relay designed for over/under voltage and over-current protection, fitting standard 35mm DIN rails. It features user-configurable settings, including adjustable voltage thresholds (230V–300V/140V–210V), current limits (1A–63A), and recovery/action time delays. Detailed operational settings and troubleshooting codes are accessible through a menu system holding the "SET" button. For complete technical specifications, see

I couldn’t find an official manual for the Tomzn TOVPD1-60-EC in my current knowledge base or browsing results. This appears to be a specific DC circuit breaker / protector (likely from Tomzn, a brand that makes solar/DC components), but the model number may be partially incorrect or less common.

Here’s what I recommend to find the manual:

Comprehensive Guide to the TOMZN TOVPD1-60-EC: Setup, Features, and Manual Breakdown

The TOMZN TOVPD1-60-EC is a multifunctional protective device that has become a staple for homeowners and DIY electricians looking to safeguard their equipment from the unpredictability of the power grid. Combining an adjustable over-voltage protector, under-voltage protector, and over-current protector into a single DIN-rail mounted unit, it offers a level of control usually reserved for industrial systems.

If you’ve misplaced your paper manual or are looking for a clearer explanation of how to program this device, this guide covers everything you need to know. Key Technical Specifications If the "Tomzn TOVPD1-60-EC" is a specific type

Before diving into the settings, it is essential to understand the hardware limits of the TOVPD1-60-EC: Rated Supply Voltage: AC 230V Operating Voltage Range: AC 80V - 400V (Single Phase) Rated Frequency: 50/60Hz Electric Current Range (>A): 1-63A (Adjustable) Over-voltage Protection Range: 230V - 300V Under-voltage Protection Range: 140V - 210V Understanding the Interface

The device features a dual-display LED screen. Typically, the top display shows the current Voltage (V), while the bottom display shows the Current (A). There are three main buttons:

SET: Used to enter the programming mode and toggle through settings. UP (▲): Increases the numerical value of a setting. DOWN (▼): Decreases the numerical value of a setting. Step-by-Step Programming Manual

To configure your TOMZN TOVPD1-60-EC, press and hold the SET button for 3 seconds. Once the screen begins to flash, use the UP and DOWN keys to adjust the parameters. Press SET briefly to move to the next "Step." 1. Over-Voltage Protection (A1) Display: A1 Range: 230V–300V (Default: 270V)

Description: This sets the maximum voltage your appliances can handle. If the grid spikes above this number, the device cuts power instantly. 2. Over-Voltage Recovery (A2) Display: A2 Range: 225V–295V (Default: 250V)

Description: After a spike, the power will only turn back on once the voltage drops below this level. 3. Under-Voltage Protection (A3) Display: A3 Range: 140V–210V (Default: 170V)

Description: "Brownouts" can damage motors and compressors (like in refrigerators). If voltage drops below this setting, the device disconnects. 4. Under-Voltage Recovery (A4) Display: A4 Range: 145V–215V (Default: 190V)

Description: The safe "return to normal" voltage after a low-power event. 5. Over-Current Protection (A5) Display: A5 Range: 1A–63A (Default: 40A or 63A depending on model)

Description: Acts as a smart circuit breaker. If your load exceeds this amperage, the unit trips. 6. Recovery Delay Time (A6) Display: A6 Range: 1s–500s (Default: 30s)

Description: This is the "wait time." After a fault is cleared, the device waits this many seconds before reconnecting power. Tip: Set this higher (around 60-120s) if you have an Air Conditioner to protect the compressor from short-cycling. Installation Notes

Wiring: Always connect the Input (IN) to the top and the Output (OUT) to the bottom. Reversing this will likely damage the unit. Title: Missing the paper manual

Neutral/Live: Ensure the "L" (Live) and "N" (Neutral) wires are in their correct designated terminals as marked on the casing.

Mounting: The device is designed for a standard 35mm DIN rail. Troubleshooting Common Issues

Display shows "Err": This usually indicates an internal fault or that the wiring is reversed.

Constant Tripping: Check your A5 (Current) setting. If you are running a kettle and a heater simultaneously, you may need to increase the Amperage limit (provided your wiring can handle it).

No Power Output: Check if the "A6" delay timer is still counting down. A small light or flashing digit usually indicates the recovery delay is active.

Summary: The TOMZN TOVPD1-60-EC is an excellent "set it and forget it" device. By properly configuring the voltage thresholds and the recovery delay, you can significantly extend the lifespan of your sensitive home electronics.

Some TOVPD1-60-EC have two small potentiometers:

Adjust only with a non-conductive tool under known stable voltage.

If you are reading this article because your device is beeping, flashing, or tripping, refer to this troubleshooting table extracted from standard TOMZN manuals.

| Symptom | Error Code/Cause | Solution | | :--- | :--- | :--- | | Screen is completely dead | No power on Neutral input terminal. | Check wiring: Top neutral terminal must be connected to mains neutral. | | Trips immediately after turning on | Overload > 60A or Short circuit. | Unplug devices and try again. If trips with nothing connected, internal MCB is faulty. | | Displays "U-Err" | Under-Voltage fault. | Voltage dropped below P2 setting. Wait for utility restoration or increase P2 value (if safe). | | Displays "O-Err" | Over-Voltage fault. | Voltage rose above P1 setting. Danger! Check transformer taps or utility supply. | | Buzzer keeps beeping | Voltage approaching dangerous limits. | Manual override: Press button once to silence buzzer. Investigate grid voltage. | | Trips, but doesn't auto-reclose | Reconnect delay (P3) still counting down. | Wait. Default is 30 seconds. If longer, check manual settings. | | App says "Offline" but breaker works | WiFi module lost router connection. | Power cycle the breaker (turn off mains, wait 1 min, turn on). Re-pair. |