Tomzn Tovpd1-60-ec Manual May 2026

The first place to check is the official website of Tomzn. Look for a "Support," "Downloads," or "Products" section where manuals and guides are often listed. You might need to search for your product model specifically.

To adjust the over/under voltage trip points without the app, follow this manual procedure:

  • Edit Value: Long press (5 sec) again to enter edit mode. The digits will flash. Use short presses to increase the value (it cycles).
  • Save & Exit: Wait 10 seconds without pressing any button, or long press again. The device saves automatically.

    • Example: To protect a sensitive refrigerator, set P1=255V, P2=185V, P3=120s.

    This section mimics the installation manual portion of the TOMZN TOVPD1-60-EC documentation. Please note the exact dimensions and wiring layout.

    | Parameter | Value | |-----------|-------| | Model | TOVPD1-60-EC | | Rated Current | 60A (resistive load recommended derating) | | Rated Voltage | 230V AC ~ 50/60Hz | | Over-voltage trip point | 275V ± 5V (adjustable on some variants) | | Under-voltage trip point | 170V ± 5V (adjustable on some variants) | | Auto-reconnect delay | 30–60 seconds after voltage normalizes | | Trip reaction time | ≤ 0.1s (over/under) | | Reset method | Automatic (EC) | | Protection class | IP20 | | Mounting | 35mm DIN rail | | Terminal capacity | ≤ 16mm² rigid wire | | Power consumption | < 1W (idle) | tomzn tovpd1-60-ec manual

    Note: Verify your unit’s silk screen for exact voltages, as small production variations exist.

    | Situation | Unit behavior | |-----------|----------------| | Voltage returns to normal range | Auto-reconnects after delay (typically 30–60s) | | Repeated rapid fluctuations | May enter “cycle protection” – increased delay after 3 trips in 2 min | | Power outage during trip | Restarts in normal monitoring mode when power restored | | No auto-reset after 2 min of normal voltage | Press physical “Reset” button or cycle input power |

    Q: Can I use the TOMZN TOVPD1-60-EC as a main switch for a 60A house? A: Yes. 60A is sufficient for a small to medium home (avoiding electric stoves/instant heaters simultaneously). However, check your utility meter's main breaker. The device should be downstream from your main isolation switch.

    Q: Does this manual apply to the TOVPD1-63 or TOVPD1-40? A: Mostly yes. The interface, wiring, and app are identical. The only difference is the amperage rating (60A vs 63A vs 40A). The "EC" WiFi feature is the same. The first place to check is the official website of Tomzn

    Q: Does it measure energy correctly? A: Yes, it uses a shunt resistor (Class 1 accuracy, +/- 1%). It is accurate enough for billing estimation but not for revenue-grade metering.

    Q: I lost my physical manual. Where can I download the PDF? A: If the brand website doesn't host it, refer to this guide. Alternatively, search "Tuya Smart 2P WiFi Breaker Manual" – the internal hardware is standardized. However, verify your voltage settings (220V vs 110V). The TOVPD1-60-EC is typically for 220-240V systems (EU, UK, Asia, Australia). A 110V version exists but has different part numbers.

    Q: Why does the voltage reading on the LCD differ from my multimeter? A: Calibration variance of +/- 2-3V is normal. You cannot calibrate it manually; you must live with the offset or replace the unit if the difference exceeds 5V.

    Some TOVPD1-60-EC have two small potentiometers: Edit Value: Long press (5 sec) again to enter edit mode

    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. |