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.
₨ 6,399 ₨ 7,999
The TOMZN TOVPD3‑VA 4‑Pole 3‑Phase Adjustable Voltage Protector is a DIN‑rail mounted safety relay designed to protect three‑phase electrical systems from common power quality issues. It continuously monitors all three phases and provides adjustable over‑voltage and under‑voltage protection, helping prevent damage to motors, compressors, HVAC units, and other critical equipment. In addition to voltage protection, the device includes over‑current protection, phase sequence and phase imbalance (asymmetry) detection, and adjustable delay settings for power‑off and reconnection timing, giving you precise control over protection behavior. Built for industrial, commercial, and residential three‑phase applications, it helps maintain stable and safe power delivery to your electrical loads.
| Specification | Details |
|---|---|
| Model / Type | TOMZN TOVPD3‑VA / TOVPD3‑63VA Three‑Phase Voltage & Current Protector |
| Pole Configuration | 4‑Pole (3 Phase + Neutral) |
| Rated Voltage | AC 3×220V / 3×230V / 3×380V depending on variant |
| Rated Frequency | 50 Hz / 60 Hz |
| Rated Load Current | 63 A (typical) |
| Over‑Voltage Protection Range | Adjustable ~230 V – 300 V |
| Over‑Voltage Recovery Range | ~220 V – 295 V |
| Under‑Voltage Protection Range | Adjustable ~140 V – 210 V |
| Under‑Voltage Recovery Range | ~145 V – 215 V |
| Over‑Current Protection Range | 3 A – 63 A |
| Active (Trip) Delay | 0.1 s – 30 s (adjustable) |
| Reconnect Delay Time | 1 s – 500 s (adjustable) |
| Power‑On Delay Time | 1 s – 500 s (adjustable) |
| Phase Sequence Protection | Yes (ON/OFF control) |
| Phase Imbalance (Asymmetry) Protection | Yes (adjustable asymmetry trip) |
| Voltage & Current Calibration | Manual adjustment ±9.5 % |
| Display (Optional) | Interactive Digital Voltage/Current Display (varies by model) |
| Mounting Type | 35 mm DIN‑Rail |
| Application | Industrial, Commercial & Residential Three‑Phase Systems Protection |
Over-Voltage Protection – Cuts power if voltage exceeds the safe set level.
Under-Voltage Protection – Shuts off supply when voltage drops below the safe limit.
Over-Current Protection – Protects circuits from excessive current draw.
Automatically Recovers – Restores power once voltage/current returns to safe range.
Real-Time Voltage & Current Display – Built-in display shows live voltage and current.
Adjustable Settings – You can set over-voltage, under-voltage, and over-current thresholds.
Memory of Settings – Remembers your set values even after power loss.
DIN-Rail Mountable – Easy installation in distribution panels.
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.
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).
4‑Pole AC Miniature Circuit Breaker – Provides protection for all three phases plus neutral (3P + N) in AC systems.
C‑Type Trip Curve – Trips reliably on overloads and short circuits, and can handle moderate inrush currents from motors and lighting loads.
Wide Voltage Compatibility: Rated for 230/400 V AC and works with 50 Hz/60 Hz electrical networks.
Multiple Current Ratings Available – Often offered in ratings up to 63 A (and sometimes 16 A, 20 A, 25 A, 32 A, 50 A).
Overload & Short‑Circuit Protection – Automatically disconnects the circuit if current exceeds safe limits.
DIN Rail Mounting – Compact design for easy installation in distribution boards.
Durable Construction – Built with robust materials for reliable performance in residential, commercial, and industrial installations.
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