WiFi VA Protector Pakistan 2026 — CNC YC7VA 10-in-1 Voltage, Current, Earth-Leakage + kWh Monitor
What is a WiFi VA protector?
A WiFi VA protector is a single DIN-rail device that combines an over/under-voltage protector, current-limit cut-off, earth-leakage protection (RCD function), and a kWh energy meter — all with built-in 2.4 GHz WiFi for remote monitoring through a vendor-neutral smart-home app. The CNC YC7VA family is the most widely-deployed unit of this type in Pakistan in 2026, sitting at PKR 1,750 (basic 40 A) up to PKR 5,200 (the 10-in-1 WiFi+kWh 63 A flagship). It is the cheapest way to protect a Pakistani home against the four most common LT-grid failures — over-voltage from a broken neutral, under-voltage during summer brown-outs, earth-leakage from damaged appliance insulation, and surge from a nearby lightning strike — while simultaneously logging your consumption for the K-Electric / IESCO bill reconciliation.
The YC7VA family at a glance — pick the right variant
| Model | Rated | Voltage range | Functions | PKR |
|---|---|---|---|---|
| YC7VA-2P 40A | 40 A | 120–300 V | V + A + cut-off | 1,750 |
| YC7VA-2P 63A | 63 A | 120–300 V | V + A + cut-off | 1,900 |
| YC7VA-2P 80A | 80 A | 120–300 V | V + A + cut-off | 2,200 |
| YC7VA-2P-KWH 63A | 63 A | 120–300 V | V + A + cut-off + kWh | 2,450 |
| YC7VA-2P-KWH WiFi 63A | 63 A | 120–300 V | V + A + cut-off + kWh + earth-leakage + WiFi (10-in-1) | 5,200 |
| YC7VA-4P 63A | 63 A 3-phase | 230–300 V | 3φ V + A + cut-off | 6,950 |
| YC7VA-4P 100A | 100 A 3-phase | 230–300 V | 3φ V + A + cut-off | 7,800 |
For most Pakistani homes the YC7VA-2P-KWH WiFi 63A at PKR 5,200 is the right pick — you get all 10 functions in one device that fits 2 modules on the DIN rail.
The "10-in-1" — what's actually inside
- Over-voltage cut-off — trips when grid exceeds 260 V (configurable). Saves TV/PC PSU on broken-neutral events.
- Under-voltage cut-off — trips when grid drops below 170 V (configurable). Saves fridge / AC compressor from running undervolt.
- Over-current cut-off — trips above 63 A (configurable). Acts as a programmable MCB.
- Earth-leakage detection — 30 mA / 100 mA / 300 mA configurable. Replaces a separate RCCB.
- Voltage monitoring — live AC voltage display + app graph.
- Current monitoring — live AC current draw + app graph.
- kWh energy meter — cumulative + daily / monthly export to app.
- Power-factor display — useful for spotting inductive load problems.
- Frequency display — 50 Hz baseline; off-frequency indicates generator load issues.
- WiFi 2.4 GHz — remote monitoring + voice control via Google Home / Alexa / Apple HomeKit.
Pakistani-specific use cases
- Broken-neutral protection — Pakistani LT lines occasionally drop a neutral, sending 415 V instead of 230 V into homes. YC7VA trips before any plugged-in appliance fries.
- Summer brown-out protection — when WAPDA voltage sags to 140–160 V on a hot evening, motors overheat. YC7VA trips at under-voltage threshold.
- Multi-tenant kWh billing — one YC7VA per tenant unit logs individual consumption.
- Load shedding alerts — app notifies you when voltage goes to zero (grid down) or returns — useful when you're not at home.
- Theft monitoring — sudden current spike at odd hours in a shop = someone running unauthorised equipment after closing.
- Solar prosumer net-metering — bi-directional kWh logging supports NEPRA Prosumer Regulations 2026 compliance.
YC7VA WiFi vs separate devices — the cost comparison
| Approach | Devices needed | DIN modules | Total PKR |
|---|---|---|---|
| Separate devices | Voltage protector + RCCB + WiFi kWh meter + SPD | 2 + 2 + 2 + 2 = 8 | PKR 18,000–25,000 |
| YC7VA-2P-KWH WiFi + AC SPD | YC7VA (does 9 of 10 functions) + 1 AC SPD | 2 + 2 = 4 | PKR 7,700 |
The YC7VA WiFi setup saves roughly 60% of cost and 50% of DB-box space.
App + alert configuration
Pair to a vendor-neutral smart-home app via 2.4 GHz WiFi (the same flow as any modern smart device). Once paired, set up these alerts:
- Voltage out of range — push notification when grid > 250 V or < 180 V
- Current spike — alert above 80% of rated (50 A on a 63 A unit)
- Earth-leakage trip — immediate alert when the device cuts off
- Daily kWh report — midnight summary of yesterday's consumption
- Monthly consumption forecast — app projects bill based on current usage rate
Common Pakistani installer mistakes (specific to YC7VA)
- Setting voltage thresholds too tight — if you set the upper trip at 240 V, you'll get nuisance trips on every summer evening. Use 255 / 260 V upper, 180 V lower as default.
- Forgetting to set the earth-leakage threshold — ships at 30 mA factory default which is right for socket circuits but may nuisance-trip on geyser circuits. Configure per circuit in the app.
- Mixing 2P and 4P units on the same WiFi SSID without naming them — the app shows "YC7VA" generically; rename each to "Kitchen", "Bedroom 1" etc. in the app immediately after pairing.
- No SPD upstream — YC7VA has built-in MOV but a Type 2 SPD upstream extends life. Pair with a YCS6-B.
- Skipping the WiFi router UPS — YC7VA loses WiFi during every WAPDA dip; cloud history has gaps. A PKR 8,000 mini-UPS for the router fixes this.
Standards + compliance
- IEC 60947-2 — circuit breaker (over-current section)
- IEC 61008-1 — residual current device (earth-leakage section)
- IEC 60664-1 — insulation coordination (voltage tolerance section)
- IEC 62053-21 — static energy meter Class 1 (kWh section)
- PSQCA — Pakistan Standards review mark on import box
Buy + related guides
Buy YC7VA-2P-KWH WiFi 63A at PKR 5,200 · YC7VA-2P-KWH (non-WiFi) at PKR 2,450 · All voltage protectors · DDS226D-2P WiFi energy meter guide · Smart Home Master Guide