Voltage Protector 3 Phase 63A-100A

3 phase voltage protector is the right product when your problem is unstable supply, not just overcurrent. This 4 pole 63A YC9VA device is listed in Pakistan at Rs.6,000 and is meant for three-phase boards where voltage swings, low voltage, high voltage, and abnormal current can damage motors, control gear, and sensitive loads. CNC Electric Pakistan sells it as a complete protection device for 3-phase DB work, but the smart way to buy it is as a monitoring and disconnect device that sits with your proper breaker and surge protection, not instead of them.

This page should not be read like the earlier YC6-style 3-phase VA page. That earlier page was written around the wider family and mixed 63A and 100A local variants. This YC9VA listing is more specific: a 4 pole, 63A device with a front display, user-set thresholds, delay control, and memory for settings. It suits buyers who want to actually see what is happening on the three phases and set protection logic instead of relying on a blind basic protector.

Key Features

• 4 pole protection format for three-phase systems with neutral.
• Current local sale variant: 63A at Rs.6,000.
• Digital voltage and current display on the front of the device.
• User-set overvoltage, undervoltage, current, trip delay, and reset/start delay based on the official manual.
• Microprocessor-based monitoring for three-phase AC networks.
• Non-volatile memory keeps settings stored after power loss.
• Modular DIN rail body for DB and control-panel installation.
• Best used with upstream circuit breakers and nearby surge protection devices.

Technical Specifications

This description uses only data published on the live product page and the user manual linked on that page. Any item not clearly shown there has not been guessed.

Product Range and Local Price

Applications in Pakistan

This is the kind of device people add when a three-phase board is suffering from poor supply quality and they want visible monitoring on the face of the unit. In Lahore, it suits larger home backup panels, lifts, and small commercial three-phase DBs. In Karachi, it makes sense in generator-linked commercial boards and plant rooms where under-voltage and over-voltage swings can stress loads. In Faisalabad, small textile and workshop feeders often need a smarter protection point than a plain breaker alone, especially when operators want to see both voltage and current on the front display.

How to Choose the Right Voltage Protector

Voltage Protector vs Alternatives — Why CNC?

What This Product Does NOT Protect Against

This device is not a substitute for the correct upstream breaker. It is not a full surge protection device. It is not a voltage stabilizer. It does not replace an MCCB, a proper circuit breaker, or an SPD. If lightning, switching surges, or heavy fault current are the main problem, you still need the correct devices around it.

It also does not fix poor wiring, loose neutral connections, undersized cable, or bad generator tuning. A smart protection relay can disconnect the load when limits are crossed, but it cannot compensate for a badly built panel.

Installation Guide

1. Mount the unit on DIN rail inside a correctly sized DB or control enclosure.
2. Follow the linked user manual for the exact L1, L2, L3 and N connection order.
3. Set the overvoltage, undervoltage, current, and delay values according to the actual load and system behaviour.
4. Keep the correct upstream breaker and nearby SPD in the same panel where required.
5. Test the trip and restart logic before handing over the board to the customer.

Related Products

• Circuit Breakers for upstream short-circuit and overload protection.
• MCCB Breakers where feeder size and fault level are higher.
• Automatic Transfer Switches if the panel also handles generator or backup source transfer.
• Changeover Breakers for manual source selection in smaller backup boards.
• Energy Meters if you want additional feeder measurement beyond the front display.
• SPD Full Form Guide for surge-protection planning.
• Types of Circuit Breakers Guide if you are selecting the whole board from scratch.
• Fire Extinguishers as the final add-on for panel safety.

Frequently Asked Questions

1. What is this 4 pole 63A voltage protector used for?

It is used on three-phase boards where you want overvoltage, undervoltage, and current monitoring with adjustable trip logic and a front display.

2. What is the price of this YC9VA voltage protector in Pakistan?

At the time checked, the local CNC Electric Pakistan page listed the 63A 4P version at Rs.6,000.

3. Is this better than a basic three-phase protector?

It is better if you want visible current and voltage display plus adjustable settings. If you only want the cheapest cutoff device, a simpler model may cost less.

4. Does this replace an MCB or MCCB?

No. It should work with the correct upstream protection, not instead of it.

5. Can I use this in a generator backup panel?

Yes, that is one of the sensible uses, especially where source quality changes and you want visible monitoring on the board.

6. Does it show both voltage and current?

Yes. The front panel is built as a voltage and current display relay according to the local sale page and the linked manual.

7. Is this a DIN rail product?

Yes. The linked manual shows it as a modular DIN rail device.

8. What if my real problem is surge damage from lightning or switching?

Then you should add the correct SPD. This product is not a substitute for a proper surge-protection device.

This 4 pole 63A voltage protector is the better pick when you want a three-phase protection device with visible current and voltage display, adjustable settings, and proper DIN-rail board use. It suits backup panels, feeder boards, building services, and small industrial applications where supply quality is a real problem. For stock status, price confirmation, and panel-selection help, contact CNC Electric Pakistan on WhatsApp 0326-1111376. Orders above Rs.10,000 qualify for free delivery.