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 |
3‑Phase Dual Power Manual Transfer Switch (MTS) – Designed for three‑phase AC systems to manually switch between two independent power sources (e.g., grid and backup/generator), ensuring continuous power supply.
4P + 4P Pole Configuration – Each power source has a 4‑pole module (phases L1, L2, L3 + neutral), providing full control and protection across all conductors.
Integrated MCB Protection – Combines manual transfer switch functionality with a Miniature Circuit Breaker (MCB) to offer overload, short‑circuit, under‑voltage, and phase‑loss protection in one unit.
Manual Operation – User‑controlled changeover between main and backup power sources for reliable fail‑safe switching without automation.
Wide Voltage & Frequency Support – Suitable for 230 V / 400 V AC systems at 50 Hz / 60 Hz frequencies, compatible with a broad range of electrical networks.
Multiple Current Ratings – Available in common ratings such as 6 A, 10 A, 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A to match different load requirements.
High Breaking Capacity – Typically around 6 kA, ensuring safe interruption of fault currents during protection events.
DIN‑Rail Mountable – Easy installation in electrical distribution boards and control panels using standard 35 mm DIN rail.
Dual Power Manual Transfer Switch (MTS) – Lets you manually switch between two AC power sources (e.g., grid and generator/backup) for safer power management.
2P + 2P Configuration – Designed for two-phase or two-source AC systems, providing protection and switching on both paths.
Integrated MCB Protection – Combines a circuit breaker (MCB) with the transfer switch to offer overload, short-circuit, and under-voltage protection while switching.
Rated Voltage: 230/400 V AC (50 Hz / 60 Hz) – Compatible with standard single-phase and two-phase networks.
Various Current Ratings (6 A to 63 A) – Multiple options to match different load requirements.
Breaking Capacity ~6 kA – Designed to safely interrupt fault currents during protection events.
Manual Operation – Simple mechanical lever/switch for choosing power source by hand without automation.
DIN-Rail Mountable – Easy installation in electrical panels and distribution boards.
2-Pole DC Circuit Breaker – Breaks both positive and negative lines in DC power systems for safer protection.
High DC Voltage Rating – Rated for up to 600 V DC (commonly used in solar PV and battery systems).
High Current Capacity – Available in up to 125 A rating for larger DC loads.
Overload & Short-Circuit Protection – Trips the circuit to prevent damage from excessive current or faults.
Modular DIN Rail Mounting – Easy installation on standard 35 mm DIN rails in DC combiner boxes and panels.
Compact & Durable Design – Built with strong materials for long service life in residential, commercial, and solar DC applications.
C-Type Trip Characteristic – Typical for general DC protection with reliable tripping behavior.
Suitable for Solar PV & Battery Systems – Ideal for protecting DC circuits between solar strings, inverters, and battery banks.
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.
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