Tomzn TOVPD3-VA 3 Phase 4 Pole Voltage Protector 63A

Tomzn TOVPD3-VA 3 Phase 4 Pole Voltage Protector

The Tomzn TOVPD3-VA 3 Phase 4 Pole Voltage Protector is a four-pole monitoring and protection device for compatible 400V three-phase, four-wire electrical systems. It monitors the three phases and neutral, displays operating information, and can disconnect the connected circuit when selected voltage or current conditions move outside the configured limits. Once the supply returns to an acceptable condition, automatic reconnection can restore the load after the configured delay.

This 63A DIN-rail protector is intended for properly designed distribution boards in commercial buildings, workshops, selected industrial panels and compatible three-phase solar or backup-power systems. Adjustable parameters allow a qualified electrician to coordinate the device with the actual supply and load. The settings must never be used to exceed the rating of the wiring, upstream breaker, contactor or connected equipment.

Key Features

• Three-phase monitoring: supervises a compatible 400V three-phase supply across a four-pole arrangement.
• Voltage and current display: provides convenient operating information for system checks at the distribution board.
• Over-voltage and under-voltage response: disconnects the load when the measured supply moves beyond configured limits.
• Overcurrent setting: supports current-based disconnection according to the device configuration and installation design.
• Phase-condition protection: designed to respond to relevant abnormal phase conditions supported by the model.
• Automatic reconnection: restores power after acceptable supply conditions return and the selected delay has elapsed.
• Adjustable parameters: lets a competent installer choose suitable thresholds and delay settings.
• DIN-rail mounting: integrates neatly into a compatible electrical distribution box.

Suitable Applications

The Tomzn TOVPD3-VA 3 Phase 4 Pole protector can be considered for three-phase commercial distribution boards, workshops, offices, shops, selected machinery supply panels, generator-backed circuits and compatible solar inverter output systems. It can help reduce exposure to sustained abnormal voltage, excessive current settings and certain phase-related supply problems. The exact application must be checked against the equipment manufacturer’s instructions and the electrical design.

For motor and compressor loads, the reconnect delay deserves special attention. Restarting equipment too quickly after a supply interruption can be harmful, so the delay must follow the connected equipment manufacturer’s requirements. Large loads or installations requiring remote control may also need an appropriately rated contactor rather than switching the full load directly through a monitoring device.

What to Confirm Before Ordering

• Your installation uses a compatible three-phase, four-wire supply.
• The model and 63A rating printed on the product suit the designed circuit.
• The conductor size and upstream protective device are correctly coordinated.
• The distribution board has sufficient DIN-rail and wiring space.
• The terminal arrangement matches the installation plan.
• The selected voltage, current and delay settings suit the connected equipment.

Browse related distribution boxes and circuit breakers for a coordinated panel installation. More options are available in our TOMZN product range.

Important Electrical Protection Note

The Tomzn TOVPD3-VA 3 Phase 4 Pole unit is a voltage and current monitoring protector; it should not be described as a complete replacement for every protective device in a three-phase panel. A correctly selected circuit breaker is still required for fault and short-circuit protection. Earth-leakage protection may require a suitable RCD or RCCB, while transient lightning or switching surges require a dedicated surge protective device. Calling an over-voltage protector an SPD can mislead buyers because sustained voltage faults and short transient surges are different electrical events.

Depending on the load and installation, additional equipment such as fuses, contactors, motor protection, phase-sequence relays or dedicated SPDs may be necessary. Protection devices should be selected as a coordinated system rather than as isolated components.

Professional Installation Required

The Tomzn TOVPD3-VA 3 Phase 4 Pole protector must be installed and configured by a qualified electrician with the supply safely isolated. The installer should verify the input and output terminal markings, neutral connection, phase arrangement, conductor capacity, terminal tightness and upstream protection before energizing the circuit. After setup, the protection thresholds and reconnection behaviour should be tested without exposing connected equipment to unsafe conditions.

Actual display layout, menu labels and supported setting ranges may vary by production batch. Always check the markings and instructions supplied with the unit instead of relying on assumed values. If you are unsure whether the TOVPD3-VA is suitable, contact HN Electric with a photo of your distribution board, supply details and expected load before ordering.

Buy TOMZN Protection Devices in Pakistan

HN Electric supplies electrical protection, distribution and solar-related equipment across Pakistan. Order the Tomzn TOVPD3-VA online for a compatible three-phase project, or ask our team for product-selection guidance before purchase. Clear circuit information helps us recommend the safer and more suitable solution.