Over-Voltage Protection – Automatically cuts power when the input voltage exceeds a set safe limit.
Under-Voltage Protection – Automatically shuts off power if the voltage falls below the configured threshold.
Over-Current Protection – Trips the socket if the current exceeds the adjustable limit (1–16 A).
Automatic Recovery – Restores power automatically once voltage/current returns to normal after a fault.
Real-Time Voltage & Current Display – Built-in digital display shows live voltage and current readings.
Adjustable Calibration – Voltage calibration adjustable within ±9.5 % for more accurate readings.
Configurable Protection Values – Users can adjust over/under-voltage and over-current trigger levels and delay times.
Factory Reset & Fault Inquiry – Easy reset of settings and ability to check fault history with button presses.
Wide Voltage Range Compatibility – Works with 90–300 V AC supply, suitable for both 110 V and 220 V environments.
Durable Construction & Long Life – Low power consumption (< 2 W) and long mechanical/electrical life (~100,000 operations).
₨ 2,099
The TOMZN TOSVA‑16 Automatic Voltage & Current Protector Socket is a plug‑in protection device designed to safeguard electrical appliances from voltage and current abnormalities. It works with a wide AC supply range (90–300 V AC) and lets you set adjustable over‑voltage, under‑voltage and over‑current protection thresholds. When the input goes outside the safe limits, it cuts power and then automatically restores it once conditions return to normal. The unit also features real‑time voltage and current displays, calibration for accurate readings, and buttons for fault inquiry and factory reset. With a 16 A adjustable load capacity and long service life, it’s ideal for protecting household and office equipment from unstable mains power.
| Specification | Details |
|---|---|
| Model Number | TOSVA‑16 |
| Power Supply / Voltage | 90 – 300 VAC, 50/60 Hz |
| Max Loading Current / Power | 1 – 16 A (adjustable) (default 16 A) |
| Over‑Voltage Protection Range | 100 V – 300 V ~ OFF (default ~270 V) |
| Over‑Voltage Recovery Range | 95 V – 295 V (default ~265 V) |
| Over‑Voltage Action Time | 0.1 s – 30 s (default 0.5 s) |
| Over‑Voltage Recovery Delay | 1 s – 500 s (default 30 s) |
| Under‑Voltage Protection Range | 80 V – 210 V ~ OFF (default ~170 V) |
| Under‑Voltage Recovery Range | 85 V – 215 V (default ~175 V) |
| Under‑Voltage Action Time | 0.1 s – 30 s (default 0.5 s) |
| Under‑Voltage Recovery Delay | 1 s – 500 s (default 30 s) |
| Over‑Current Adjustment Range | 1 – 16 A (default 16 A) |
| Over‑Current Action Time | 0.1 s – 30 s (default 0.5 s) |
| Over‑Current Recovery Delay | 1 s – 500 s (default 30 s) |
| Power‑On Delay Time | 1 s – 500 s (default 10 s) |
| Power Consumption | < 2 W |
| Electric / Mechanical Life | ≈ 100,000 cycles |
| Display Functions | Voltage measurement & Current measurement |
| Voltage Calibration | ±9.5 % adjustable |
| Additional Features | Factory reset & fault inquiry buttons |
| Installation | 35 mm DIN‑Rail mount |
Adjustable Over-Voltage Protection – Cuts off power if voltage rises above your set safe level (e.g., 230–300 V range).
Adjustable Under-Voltage Protection – Disconnects supply when voltage falls below the safe limit (e.g., 140–210 V range).
Adjustable Over-Current Protection – Protects against excessive current with adjustable current range up to 63 A.
Real-Time Monitoring – Built-in voltage meter, ammeter, and energy (kWh) meter for live electrical data.
Delay & Reconnect Settings – Adjustable delay times before protection kicks in and automatic power reconnection after normal conditions return.
Memory of Fault Values – Saves recorded values for over-voltage, under-voltage, and over-current events even after power is off.
LED Indicators – Flashing LEDs show voltage or current protection status when triggered.
DIN-Rail Mountable – Fits easily into electrical panels using a standard DIN rail.
Smart WiFi Control – Remotely turn the breaker ON/OFF from anywhere using the Smart Life / Tuya app on your phone.
Energy Monitoring (kWh) – Measures and reports real-time energy usage, including voltage, current, and power, so you can track consumption and manage bills.
Scheduling & Timer Functions – Create timers, schedules, and loop timers for automatic circuit control.
Built-In Protection – Offers over-voltage, under-voltage, and over-current protection settings to safeguard connected devices.
Wide Operating Range – Works with AC 90–300 V (50/60 Hz) supply and supports 63 A load capacity (adjustable).
Last State Memory – Remembers the previous ON/OFF status after a power outage.
Durable & Reliable – Designed for over 100,000 mechanical operations and –25 °C to +70 °C operating temperature.
Real-Time Voltage & Current Metering – Displays voltage, current, and power values in the app.
Voice Assistant Ready – Works with Google Assistant & Alexa via the Tuya/Smart Life platform (depending on app setup).
Dual‑Function Design: Acts as both a circuit breaker and a manual changeover/transfer switch to safely switch between two AC power sources (e.g., grid and generator).
63 A Rated Current: Supports loads up to 63 amps, suitable for larger circuits and subpanels.
2‑Pole Configuration: Provides simultaneous switching and isolation of live and neutral lines for safer operation.
Manual Operation: Simple hand‑operated transfer between main and backup power — no automation.
Integrated Isolation Feature: Includes a mechanical isolating function for safer maintenance and prevention of back‑feed.
Robust Construction: Made with flame‑retardant plastic and durable materials for reliability in industrial, commercial, and residential installations.
DIN‑Rail Mountable: Compact design for easy installation on a 35 mm DIN rail in distribution panels or electrical enclosures.
AC Voltage Compatibility: Typically used with standard 230 V–400 V AC systems at 50/60 Hz.
2-Pole DC Surge Protection – Designed to protect DC power systems (e.g., solar PV strings and DC distribution) from damaging voltage surges and transient spikes.
High Discharge Capacity (20 kA ~ 40 kA) – Can absorb and divert large surge currents caused by lightning or fast transient overvoltage events, helping safeguard connected equipment.
Rated for Up to 1000 V DC – Suitable for high-voltage DC systems typically used in photovoltaic (solar) installations and other DC circuitry.
Fast Response Time – Activates quickly (in microseconds) to reduce exposure to harmful transient events in the DC network.
Low Residual Voltage – Limits the voltage that passes through to sensitive devices during a surge, minimizing potential damage
Thermal Disconnect Safety – Built-in thermal disconnect devices improve reliability by isolating the unit if internal components overheat.
Visual Status Indicators – Color-coded indicators (e.g., green for normal, red for fault) provide quick feedback on protection status.
DIN-Rail Mountable – Easy installation in DC combiner boxes, PV distribution panels, and electrical cabinets using standard DIN-rail mounting.
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