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WiFi smart breaker 40A is the practical choice when you want to switch a single-phase circuit from your phone instead of walking to the DB every time. On the live CNC Electric Pakistan page, this single pole model is listed at Rs.5,400. It is built for remote ON/OFF control, timing, real-time status feedback, metering, and leakage protection in a compact DIN-rail format. For homes, small offices, shops, water-pump lines, signboards, and controlled appliance circuits in Pakistan, that makes it a useful upgrade over an ordinary breaker.
The important thing is to buy it for the right job. This is not just a plain circuit breaker and it is not the same thing as a full voltage protector or a complete surge protection device. It is a smart single-pole breaker for users who want remote switching, scheduling, status checking, and line monitoring in one modular device. If you are building a smarter board in Lahore, managing a pump line in Karachi, or controlling a shop circuit in Islamabad, that is the real use case.
| Parameter | Value |
|---|---|
| Product type | WiFi smart circuit breaker |
| Pole format | Single pole |
| Local sale variant | 40A |
| Rated operating voltage family context | 230V AC |
| Frequency | AC 50Hz / 60Hz |
| Mounting | Modular DIN rail installation |
| Remote control | Yes, phone or computer remote opening / closing according to the local page |
| Feedback | Real-time ON/OFF status feedback |
| Timing function | Timing and delayed opening / closing |
| Protection functions stated on local page | Overload, short circuit, leakage protection, metering |
| Measured values stated on local page | Voltage, current, power, electricity |
| Breaking capacity, dimensions, exact app platform, threshold chart | Not clearly published on the live local page and have not been guessed |
This description uses only data published on the live local sale page plus limited official CNC smart-breaker family context where it clearly helps explain the product class. Exact short-circuit capacity, dimensions, detailed app screenshots, threshold menus, and terminal-size tables are not currently listed on the local page and have not been guessed.
| Product | Poles | Local visible variant | Current local price |
|---|---|---|---|
| YCSI smart breaker | 1P | 40A | Rs.5,400 |
| 2-pole smart breaker | 2P | 63A on local site | See WiFi smart breakers |
| 4-pole smart breaker | 4P | 100A class shown on local site | See WiFi smart breakers |
This single-pole model is the compact entry point into the smart-breaker range. Buy it when you want remote control of one phase line on a normal single-phase circuit. If you need phase and neutral isolation together, move up to a 2-pole smart breaker. If you are dealing with three-phase loads, step up to the 4-pole class instead of forcing a 1P device into the wrong job.
This type of smart breaker is useful when the circuit is simple, single phase, and benefits from remote control. In Lahore apartments, that can mean a geyser circuit or rooftop water-pump line that the user wants to control on schedule. In Karachi shops and offices, it can be useful for sign lighting, selected socket lines, or controlled equipment that should not stay on after working hours. In Islamabad homes and offices, it suits users who want line monitoring and remote OFF capability on a specific branch without redesigning the whole board.
| Application | Why it fits | What to watch |
|---|---|---|
| Geyser control | Remote ON/OFF and timing reduce wasted run hours | Check actual load current and wiring condition first |
| Small water pump line | Useful when the user wants remote control and status feedback | Motor starting behavior and wiring quality still matter |
| Signboard or selected lighting circuit | Timing and remote OFF are practical for shops and offices | Not a substitute for proper surge protection |
| Controlled appliance branch | Lets the user isolate and monitor a selected line | Choose 2P if you need phase and neutral cut together |
| Rental property / remote shutdown point | Good where the owner wants remote visibility on one circuit | Internet and control logic should be planned properly |
| Your requirement | Best fit | Reason |
|---|---|---|
| Single-phase branch, remote switching, 40A class | This 1P 40A model | Right when you only need one line switched and monitored |
| Need phase + neutral isolation | 2-pole smart breaker | Better when full single-phase isolation is required |
| Three-phase load or board | 4-pole smart breaker | A 1P unit is the wrong class for that job |
| Need protection against severe surge events | Add SPD | Smart breaker metering is not the same as surge protection |
| Need over / under-voltage correction logic for supply instability | Add voltage protector | That is a different product function |
| Option | What it does well | Where it falls short |
|---|---|---|
| CNC WiFi smart breaker 1P 40A | Remote control, timing, feedback, leakage protection, metering, DIN rail form | Still needs correct supporting protection around it |
| Plain MCB | Simple and cheap branch protection | No remote control, no feedback, no scheduling, no metering |
| Generic smart relay module | Low entry cost for basic switching | Usually weaker panel integration and less breaker-style functionality |
| 2-pole smart breaker | Better when phase and neutral both need switching | Bigger and not needed for every single-pole branch |
This product does not replace every other protection device in the board. It is not the same thing as a dedicated voltage protector, it does not replace a correctly selected SPD for surge events, and it is not a substitute for a full RCBO or RCCB solution strategy where the board needs coordinated earth-leakage protection.
It also does not turn a badly designed circuit into a safe circuit. Loose terminations, undersized wiring, overloaded appliances, poor neutral management, and no surge protection will still create problems even if the breaker is smart. Buy it for remote switching and monitoring. Do not buy it expecting it to replace good board design.
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📖 Guide: Types of Circuit Breakers
At the time checked, the live CNC Electric Pakistan page listed the single-pole 40A WiFi smart breaker at Rs.5,400.
Yes. The local page states that the breaker supports remote opening and closing by mobile phone app or computer, plus real-time status feedback.
The live product page says it has a metering function and can display voltage, current, power, and electricity values.
It is better only if you actually need remote control, timing, feedback, and monitoring. If you only need a basic protective device, a plain breaker can still be the simpler answer.
Usually no. This single-pole 40A model is better treated as a branch or selected-circuit smart breaker. Whole-house control needs a more careful board-level design and often a different pole format.
A 1P smart breaker is for a single line path. A 2P smart breaker is the better choice when phase and neutral both need switching or isolation together.
No. A smart breaker does not replace a proper voltage protector for unstable mains or an SPD for surge protection. Those are separate devices with different jobs.
Yes, the product class is built for modular DIN rail installation. It should still be installed in a suitable enclosure with proper wiring practice and the right surrounding protection devices.
This WiFi smart breaker 40A is a practical upgrade for users who want remote switching, scheduling, feedback, and circuit monitoring on a single-phase branch. It makes the most sense when the job is a selected line, not the whole installation. For stock checks, technical guidance, and product matching, contact CNC Electric Pakistan on WhatsApp 0326-1111376. Orders above Rs.10,000 qualify for free delivery across Pakistan.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. Shipping: Free delivery across Pakistan. Standard delivery takes 2-5 business days. Cash on Delivery (COD) available. For bulk orders, WhatsApp: +92 326-1111376.


