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 |
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).
4‑Pole Manual Changeover Switch – Designed for three‑phase systems (L1, L2, L3 + N), allowing safe switching between two AC power sources (e.g., main grid and backup).
63 A Rated Current – Suitable for moderate‑to‑heavy loads in residential, commercial, or industrial three‑phase installations.
Manual Transfer Switch Function (MTS) – Lets you manually switch power sources to maintain continuity when the primary supply fails.
Interlock Mechanism – Prevents simultaneous connection of both power sources, reducing the risk of short circuits and equipment damage.
DIN‑Rail Mountable – Standard 35 mm DIN‑rail installation for easy integration into electrical panels and distribution boards.
Flame‑Retardant Durable Build – Made of high‑quality insulating plastic for safety and reliability.
Compact & Robust Design – Space‑efficient construction suitable for crowded control enclosures.
Seamless Power Management – Helps manage dual power supply systems (e.g., grid & generator) where uninterrupted power is needed
2-Pole AC Circuit Breaker — Protects two lines in an AC electrical circuit.
Voltage Rating: Works at 230/400 V AC with 50/60 Hz frequency, suitable for standard power systems.
Current Ratings Available: From 6 A up to 63 A — choose based on your load requirement.
C-Type Trip Curve: Designed to trip on overloads and short circuits, and handle temporary current spikes (e.g., motors, lights).
Overload & Short-Circuit Protection: Automatically disconnects the circuit to prevent electrical damage and hazards.
Compact & Durable Design: Lightweight, built with fire-resistant and shock-resistant plastic, and easy to install on a DIN rail.
Standards Compliance: Meets international safety standards like IEC 60898 & IEC 60947 for reliable performance.
Adjustable Over‑Voltage Protection — Cuts power when phase voltage exceeds the set safe level to protect equipment from high‑voltage damage.
Adjustable Under‑Voltage Protection — Disconnects supply if phase voltage drops below the set threshold to avoid brown‑out damage.
Over‑Current Protection — Protects circuits from over‑current conditions with adjustable current limits.
Three‑Phase Balance & Asymmetry Protection — Detects phase imbalance (asymmetry) and trips to prevent damage to motors and other loads.
Phase Sequence Protection — Ensures correct phase order and prevents reversal faults that can damage three‑phase equipment.
Adjustable Timing Controls — Active time, reconnect delay, and power‑on delay are adjustable to fine‑tune protection response.
Manual Voltage & Current Calibration — Allows precise calibration of measurement ranges to match specific system requirements.
DIN‑Rail Mountable Design — Standard 35 mm DIN‑rail installation for easy panel mounting.
Wide Use Cases — Suitable for industrial, commercial, and residential three‑phase systems to protect motors, compressors, HVAC units, and other loads.
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