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 |
Dual Power Manual Transfer Switch (MTS) – Allows you to manually switch between two AC power sources (e.g., main grid and backup generator).
1P + 1P Configuration – Uses two single-pole modules—one for each power source—ideal for single-phase systems.
Built-in Circuit Breaker (MCB) – Provides overload and short-circuit protection during power source switching.
Safety Interlocking System – Prevents both power sources from being connected at the same time to avoid back-feeding and electrical hazards.
Manual Operation – Simple, user-controlled switching between power supplies without automated control.
Wide Frequency Support: Works with 50 Hz / 60 Hz AC systems.
Single-Phase Compatibility – Best for homes, small businesses, and backup power setups.
Dual Power Manual Transfer Switch (MTS) – Enables manual switching between two independent DC power sources (e.g., solar array and battery bank) in a PV system for reliable power control.
4P + 4P Pole Configuration – Provides full isolation of both positive and negative poles for each power path, ensuring greater safety and complete DC disconnection when switching.
High DC Voltage & Current Capacity – Typically rated for up to 1000 V DC and 63 A, suitable for a wide range of solar system sizes and off‑grid applications.
Built‑in Overload & Short‑Circuit Protection – Integrated MCB function protects DC circuits from overcurrent and short circuits during normal operation.
Robust Construction – Made with flame‑retardant, durable materials to withstand PV environmental conditions and long‑term use.
Manual Operation with Visual Indicators – Simple hand‑operated transfer and clear on/off indicators help ensure correct switching and safer operation.
DIN‑Rail Mountable – Designed for easy installation in DC combiner boxes, distribution panels, or PV system enclosures.
Suitable for PV & Off‑Grid Systems – Ideal for solar PV installations, battery backup systems, and other DC power networks requiring safe manual source selection.
10-in-1 Smart Protection & Monitoring – Monitors voltage, current, leakage current, total kWh (energy) and protects your circuit.
WiFi Connectivity & App Control – Connects to your home Wi-Fi (2.4 GHz) and lets you remote ON/OFF control, monitor and adjust settings from the Smart Life / TUYA app on iOS/Android.
Adjustable Protection Settings – Set thresholds for over-voltage, under-voltage, over-current, and leakage current via the app or manually.
Voltage & Current Monitoring – Real-time display and tracking of line voltage and current in the app.
Leakage Current Protection – Detects leakage and cuts power to enhance electrical safety.
Energy Consumption Tracking – Shows total kWh usage so you can monitor and manage power consumption.
Scheduled Control & Timer – Create schedules to automate ON/OFF times for your circuits via the app.
Automatic Reconnection with Delay – After a fault trip, it can reconnect automatically with an adjustable delay (1 s to 500 s).
Calibration Feature – Allows calibration for voltage, current, and kW readings for better accuracy.
Voice Assistant Compatible – Works with Google Assistant / Alexa for hands-free control (where supported).
DIN-Rail Mountable – Standard design for installation in electrical panels.
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.
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