CNC YC6VAZs Automatic Phase Selector monitors L1, L2 and L3 and automatically connects a compatible single-phase load to an available healthy phase when the selected phase experiences over-voltage, under-voltage or phase failure.
Looking for the CNC Automatic Phase Selector price in Pakistan? The CNC YC6VAZs Automatic Phase Selector automatically monitors L1, L2 and L3 and selects an available healthy phase for a compatible single-phase load when the preferred incoming phase experiences abnormal voltage or complete phase failure.
This makes it particularly useful in Pakistani homes, shops, offices and commercial distribution boards supplied from a three-phase connection where individual phases may occasionally suffer from low voltage, high voltage or phase failure.
The CNC YC6VAZs continuously monitors the condition of the three incoming phases. Its preferred operating sequence is L1, then L2, then L3.
If L1 is available and operating within the configured voltage limits, the connected load remains on L1. If L1 fails or moves outside the configured voltage range, the unit checks L2. If L2 is suitable, the load is transferred to L2. If required, the device can then check L3.
When the preferred phase becomes healthy again, the device can reconnect according to its configured recovery settings.
Why Automatic Phase Selection Matters in Pakistan
Many residential and commercial buildings in Pakistan receive a three-phase utility connection even though several individual circuits and appliances operate on single-phase supply.
In areas where one WAPDA or utility phase becomes weak, drops out or experiences abnormal voltage while another phase remains healthy, manually changing the phase from the distribution board can be inconvenient.
An automatic phase selector reduces this manual intervention by monitoring the available phases and selecting a suitable phase automatically.
Automatic Phase Selector vs Automatic Transfer Switch
An automatic phase selector and an ATS solve different problems.
The CNC YC6VAZs chooses between available phases of the incoming supply. An Automatic Transfer Switch normally changes the load between two different power sources, such as WAPDA and generator or utility and inverter.
If your requirement is automatic switching between two separate power sources rather than between L1, L2 and L3, consider our 2 Pole 63A CNC Automatic Transfer Switch.
Automatic Phase Selector vs Manual Changeover
With a traditional manual phase-changeover arrangement, someone must inspect the available phases and manually select another phase when the active phase becomes unavailable.
The CNC YC6VAZs automates this process by continuously monitoring the incoming phases and switching according to its programmed priority and protection limits.
This can be particularly convenient for shops, offices, homes, pharmacies, security systems and other locations where someone may not always be available at the electrical panel.
Built-In Over-Voltage and Under-Voltage Monitoring
The YC6VAZs does more than simply detect a completely missing phase. It can also evaluate whether the phase voltage remains within the configured operating limits.
When the active phase moves outside the configured voltage range, the device can disconnect that phase and search for another suitable incoming phase.
This functionality can be particularly useful in locations affected by unstable utility voltage or uneven phase conditions.
Adjustable Recovery Delay
The recovery delay helps prevent immediate reconnection the moment voltage returns.
Instead, the selector waits for the configured delay period before reconnecting. This is useful when utility voltage fluctuates repeatedly during restoration after an outage.
Is This a Three-Phase Load Switch?
This is an important distinction when selecting the product.
The CNC YC6VAZs monitors three incoming phases, but its purpose is to select an available phase for a compatible single-phase load. It should not be confused with a device intended to transfer an entire three-phase motor or other three-phase load.
For proper three-phase circuit isolation and protection, select suitable equipment such as a CNC 4 Pole MCB according to the electrical system design.
Where Can a CNC Automatic Phase Selector Be Used?
Homes with three-phase incoming utility supply
Shops and retail outlets
Offices and commercial buildings
Clinics and pharmacies
Security and CCTV systems
Communication and networking equipment
Essential single-phase circuits
Small workshops
Distribution boards with unstable individual phases
Locations experiencing frequent phase loss
63A, 80A or 100A Phase Selector — Which One Should You Choose?
Choose the current rating according to the actual connected load, conductor capacity and electrical panel design rather than simply selecting the highest rating available.
The 63A version may suit lower-current residential and commercial applications, while the 80A and 100A versions provide additional current capacity where the electrical design requires it.
Upstream circuit protection is still required. For appropriate single-phase circuit isolation, see our CNC 2 Pole MCB range.
Does an Automatic Phase Selector Replace an MCB?
No. The phase selector primarily performs phase monitoring, automatic selection and voltage-related control functions.
Appropriately rated circuit breakers are still required for overload and short-circuit protection according to the electrical installation.
For three-phase incoming distribution, a suitable 4 Pole MCB or other correctly selected protective device may also form part of the overall panel design.
Automatic Phase Selector or ATS — Which Do You Need?
Requirement
Recommended Device
Select a healthy phase from L1, L2 and L3
Automatic Phase Selector
Switch between WAPDA and generator
Automatic Transfer Switch
Switch between WAPDA and inverter automatically
Automatic Transfer Switch
Manual selection between two power sources
Manual Transfer Switch
Overload and short-circuit protection
MCB / MCCB
For automatic switching between two independent sources, view the CNC YCQ1B 2 Pole 63A Automatic Transfer Switch.
CNC Automatic Phase Selector Price in Pakistan
Shop the CNC YC6VAZs Automatic Phase Selector in Pakistan from Electrified.pk. Choose the appropriate current rating according to your electrical system and check the live product page for current stock, pricing and promotional availability.
For Pakistani buyers searching for a 63A automatic phase selector, auto phase changeover, 3 phase selector or automatic phase changeover switch, the YC6VAZs provides automatic phase monitoring with configurable voltage protection and recovery control in one compact device.
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