{"product_id":"2-pole-mcb-10a-63a-ac-circuit-breaker","title":"2 Pole MCB 10A-63A | AC Circuit Breaker","description":"\u003ch2\u003eCNC 2 Pole MCB — Double Pole Miniature Circuit Breaker (Safety Breaker)\u003c\/h2\u003e\n\u003cp\u003eThe CNC YCB7H 2 pole MCB (miniature circuit breaker) is a double pole breaker that disconnects\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eboth live and neutral\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esimultaneously — providing complete isolation of the circuit. MCB full form is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMiniature Circuit Breaker\u003c\/strong\u003e, and this 2P version is the standard main incoming breaker for single-phase distribution boards across Pakistan.\u003c\/p\u003e\n\u003cp\u003eUnlike a\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/products\/cnc-1-pole-mcb-ac-breaker-ycb7-63a\"\u003e1 pole MCB\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewhich only disconnects the live wire, this double pole MCB breaker cuts both live and neutral — essential for circuits fed by generators, inverters, or\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/changeovers\"\u003echangeover switches\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewhere the neutral may carry dangerous voltage during a fault. Every single-phase home DB box in Pakistan needs a 2 pole MCB as its main breaker switch.\u003c\/p\u003e\n\u003cp\u003eAvailable from 10A to 63A with C-curve trip response, this safety breaker handles everything from a small sub-main to the main incoming supply for a full Pakistani household. CNC Electric is a trusted MCB breaker brand in Pakistan with a 5-year replacement warranty on all circuit breakers.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMCB — Miniature Circuit Breaker (Double Pole Safety Breaker)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoles\u003c\/td\u003e\n\u003ctd\u003e2P (Double Pole — disconnects live + neutral)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Ratings\u003c\/td\u003e\n\u003ctd\u003e10A, 16A, 20A, 25A, 32A, 40A, 63A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e230V\/400V AC, 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreaking Capacity\u003c\/td\u003e\n\u003ctd\u003e6kA at 230V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrip Curve\u003c\/td\u003e\n\u003ctd\u003eC-curve (trips at 5-10× rated current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eIEC 60898-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e35mm DIN rail (standard for all Pakistani DB boxes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Width\u003c\/td\u003e\n\u003ctd\u003e2 modules (36mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 25mm² cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-5°C to +40°C (derates above 40°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Life\u003c\/td\u003e\n\u003ctd\u003e20,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Life\u003c\/td\u003e\n\u003ctd\u003e10,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5-year replacement warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003eFree delivery across Pakistan on orders over Rs.10,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWhy You Need a 2 Pole (Double Pole) Breaker\u003c\/h2\u003e\n\u003cp\u003eIn Pakistan's electrical system, a single pole breaker only disconnects the live wire — the neutral remains connected. This is fine for individual branch circuits. But for your\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emain incoming breaker\u003c\/strong\u003e, you need both wires disconnected for these critical reasons:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeutral failure protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIn Pakistani wiring, neutral failures are extremely common — especially in areas with shared neutral or underground cable problems. When the neutral breaks, some appliances can receive up to 440V instead of 220V, destroying AC compressor boards (Rs.15,000-35,000 repair), refrigerator circuits, and electronics. A 2 pole MCB as the main breaker allows you to disconnect the entire circuit — both live and neutral — during maintenance or emergencies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGenerator and inverter circuits:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen switching between WAPDA and generator via a\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/changeovers\"\u003echangeover switch\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/ats\"\u003eautomatic transfer switch (ATS)\u003c\/a\u003e, the neutral from the generator is different from the WAPDA neutral. A 2 pole breaker ensures complete isolation of both wires when switching sources.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSolar inverter AC output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe AC output from your solar inverter needs a 2 pole MCB before entering the DB box. This ensures the inverter is fully isolated during maintenance — critical for safety because the inverter generates its own live and neutral.\u003c\/p\u003e\n\u003ch2\u003eWhich Rating for Which Application\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eRating\u003c\/th\u003e\n\u003cth\u003eCable Size\u003c\/th\u003e\n\u003cth\u003eCommon Use as 2 Pole Breaker in Pakistan\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10A\u003c\/td\u003e\n\u003ctd\u003e1.5mm²\u003c\/td\u003e\n\u003ctd\u003eSub-circuit for lighting only, small UPS output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16A\u003c\/td\u003e\n\u003ctd\u003e2.5mm²\u003c\/td\u003e\n\u003ctd\u003eDedicated appliance circuit (washing machine, geyser on its own line)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20A\u003c\/td\u003e\n\u003ctd\u003e2.5mm²\u003c\/td\u003e\n\u003ctd\u003e1-1.5 ton inverter AC on dedicated circuit with full isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25A\u003c\/td\u003e\n\u003ctd\u003e4mm²\u003c\/td\u003e\n\u003ctd\u003eSmall inverter\/UPS output, 1.5 ton AC dedicated circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32A\u003c\/td\u003e\n\u003ctd\u003e6mm²\u003c\/td\u003e\n\u003ctd\u003eSub-main feeder to secondary DB, small shop main, EV charger circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40A\u003c\/td\u003e\n\u003ctd\u003e10mm²\u003c\/td\u003e\n\u003ctd\u003eMain incoming breaker for small home (2-3 ACs), solar inverter output up to 8kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e63A\u003c\/td\u003e\n\u003ctd\u003e16mm²\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eStandard main incoming breaker\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor typical Pakistani single-phase home, large shop, solar inverter up to 15kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eMost common choice:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e63A as the main incoming breaker for a Pakistani home. This sits at the top of your DB box, before all branch\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/products\/cnc-1-pole-mcb-ac-breaker-ycb7-63a\"\u003e1 pole MCBs\u003c\/a\u003e. If your total load exceeds 63A, you need an\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/ac-mccb-breakers\"\u003eMCCB breaker\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003einstead.\u003c\/p\u003e\n\u003ch2\u003e1 Pole vs 2 Pole vs 4 Pole — When to Use Which\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eDisconnects\u003c\/th\u003e\n\u003cth\u003eUse When\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 Pole MCB\u003c\/td\u003e\n\u003ctd\u003eLive only\u003c\/td\u003e\n\u003ctd\u003eBranch circuits: individual lights, sockets, single appliance\u003c\/td\u003e\n\u003ctd\u003eRs.425\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2 Pole MCB (this product)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eLive + Neutral\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMain breaker, generator\/inverter circuits, full isolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eRs.850\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 Pole MCB\u003c\/td\u003e\n\u003ctd\u003e3 phases (L1+L2+L3)\u003c\/td\u003e\n\u003ctd\u003eThree-phase motor circuits, industrial without neutral\u003c\/td\u003e\n\u003ctd\u003eRs.1,300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 Pole MCB\u003c\/td\u003e\n\u003ctd\u003e3 phases + Neutral\u003c\/td\u003e\n\u003ctd\u003eThree-phase main breaker, solar inverter 3-phase output\u003c\/td\u003e\n\u003ctd\u003eRs.1,850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eTypical Pakistani Home DB Box Layout\u003c\/h2\u003e\n\u003cp\u003eA properly wired single-phase home in Lahore, Karachi, Islamabad, or any city in Pakistan should have this DB box structure:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePosition 1 (top):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2 Pole MCB 63A (this product) — main incoming breaker. All power flows through this first. Install a\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/pages\/voltage-protector-finder\"\u003eVA voltage protector\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eimmediately after this breaker for voltage protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePosition 2-12 (branches):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/products\/cnc-1-pole-mcb-ac-breaker-ycb7-63a\"\u003e1 Pole MCBs\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e(Rs.425 each) — one per circuit. Typical home: 10A for lighting, 16A for sockets, 20A for each AC, 16A for geyser, 10A for refrigerator.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdd for safety:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/rccb\"\u003eRCBO earth leakage breaker\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor bathroom\/kitchen circuits,\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/spd\"\u003eSPD surge protector\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eat the main panel for lightning protection. Browse our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/solar-bundles\"\u003esolar DB bundles\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor pre-configured kits that include all these components.\u003c\/p\u003e\n\u003ch2\u003eWhy C-Curve Is the Standard in Pakistan\u003c\/h2\u003e\n\u003cp\u003eMCB trip curves define how much inrush current the breaker tolerates before tripping:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTrip Curve\u003c\/th\u003e\n\u003cth\u003eTrips At\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eB-curve\u003c\/td\u003e\n\u003ctd\u003e3-5× rated current\u003c\/td\u003e\n\u003ctd\u003ePurely resistive loads only — rarely used in Pakistan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eC-curve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5-10× rated current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard for all general circuits — handles AC\/motor startup inrush\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD-curve\u003c\/td\u003e\n\u003ctd\u003e10-20× rated current\u003c\/td\u003e\n\u003ctd\u003eHeavy inrush — industrial\/factory circuits only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWhat This Breaker Does NOT Protect Against\u003c\/h2\u003e\n\u003cp\u003eA 2 pole MCB protects against\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eoverload\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eshort circuit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eonly. It does NOT protect against:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage fluctuation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— If WAPDA voltage spikes to 280V or drops to 140V, the MCB will not react. Install a\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/pages\/voltage-protector-finder\"\u003eVA voltage protector (Rs.1,700-2,000)\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eimmediately after this 2 pole main breaker. The VA device monitors voltage 24\/7 and disconnects if it goes outside safe range — protecting your AC, fridge, and electronics from burning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eElectric shock \/ earth leakage\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— If someone touches a live wire, 30mA flowing through the body will not trip this MCB. You need an\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/rccb\"\u003eRCBO earth leakage breaker\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eon bathroom, kitchen, and outdoor circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLightning and surge\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— Thousands of volts from a nearby lightning strike will pass right through the MCB. Install an\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/spd\"\u003eSPD surge protection device\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eat the main panel.\u003c\/p\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBranch circuit breakers →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/products\/cnc-1-pole-mcb-ac-breaker-ycb7-63a\"\u003e1 Pole MCB 2A-63A (Rs.425)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompact 1P+N in one module →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/ac-breaker\"\u003e1P+N MCB 10A-40A (Rs.825)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eThree-phase circuits →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/products\/cnc-3p-mcb-ac-circuits-breaker-ycb7h-63\"\u003e3 Pole MCB (Rs.1,300)\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/products\/cnc-4p-ac-mcb-circuit-breaker-ycb7h-63\"\u003e4 Pole MCB (Rs.1,850)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eLoad above 63A →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/ac-mccb-breakers\"\u003eMCCB breakers 100A-1250A\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eVoltage protection →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/pages\/voltage-protector-finder\"\u003eVA Protector (Rs.1,700-5,200)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eAutomatic WAPDA-generator switching →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/ats\"\u003eATS Automatic Transfer Switches\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eManual generator switching →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/changeovers\"\u003eChangeover Switches\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSolar DC side →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/dc-breaker\"\u003eDC circuit breakers\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e(never use AC breaker on DC)\u003c\/li\u003e\n\u003cli\u003eComplete DB setup →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/db-boxes\"\u003eDB boxes\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e+ breakers\u003c\/li\u003e\n\u003cli\u003eRead our guide →\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/blogs\/guides\/types-of-circuit-breakers\"\u003eTypes of Circuit Breakers in Pakistan — Complete Guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 2 pole MCB? What is double pole breaker?\u003c\/h3\u003e\n\u003cp\u003eA 2 pole MCB (double pole breaker) is a miniature circuit breaker that disconnects both the live wire and the neutral wire at the same time. MCB full form is Miniature Circuit Breaker. The \"2 pole\" means it has two switching mechanisms linked together — when it trips or is switched off, both poles open simultaneously. In Pakistan, electricians call it a \"double pole breaker\" or \"DP breaker\" or simply \"2P MCB\". It's the standard main incoming breaker switch for single-phase home and shop DB boxes.\u003c\/p\u003e\n\u003ch3\u003eWhy use 2 pole MCB instead of 1 pole as main breaker?\u003c\/h3\u003e\n\u003cp\u003eA 1 pole MCB only disconnects the live wire — the neutral stays connected. In Pakistan, neutral failures are common and can send dangerous voltage through the neutral wire. With a 2 pole MCB as your main breaker, when you switch it off for maintenance or it trips during a fault, both wires are completely disconnected — zero voltage in your DB box. This is essential for safe maintenance and for circuits connected to generators or solar inverters where the neutral path differs from WAPDA supply.\u003c\/p\u003e\n\u003ch3\u003eWhat size 2 pole MCB for Pakistani home main breaker?\u003c\/h3\u003e\n\u003cp\u003eFor most single-phase homes in Pakistan, a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e63A 2 pole MCB\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the standard main incoming breaker. This handles a typical household with 2-3 ACs, geyser, refrigerator, washing machine, and general lighting\/sockets. If your home has more than 3 ACs or heavy commercial loads, you may need an\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/ac-mccb-breakers\"\u003eMCCB breaker\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003erated at 100A or higher.\u003c\/p\u003e\n\u003ch3\u003eWhat is the 2 pole 63A MCB price in Pakistan?\u003c\/h3\u003e\n\u003cp\u003eThe CNC 2 Pole 63A MCB is available at Rs.850 at CNC Electric Pakistan. Competitor brands: Schneider Domae 2P 63A typically costs Rs.1,800-2,200, and Chint 2P 63A costs Rs.1,000-1,200. CNC offers the same IEC 60898-1 certified performance with 6kA breaking capacity at approximately 50-60% lower price, with a 5-year replacement warranty included.\u003c\/p\u003e\n\u003ch3\u003eCan I use a 2 pole MCB for a generator changeover circuit?\u003c\/h3\u003e\n\u003cp\u003eYes — a 2 pole MCB is essential on both the WAPDA side and the generator side of a manual\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/changeovers\"\u003echangeover switch\u003c\/a\u003e. Each source needs its own 2P MCB for isolation. When switching between sources, you turn off one 2P breaker before turning on the other. For automatic switching, use an\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/ats\"\u003eATS (Automatic Transfer Switch)\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewhich handles this in under 50 milliseconds.\u003c\/p\u003e\n\u003ch3\u003eDo I need a 2 pole MCB for my solar inverter?\u003c\/h3\u003e\n\u003cp\u003eYes. The AC output from your solar inverter must pass through a 2 pole MCB before entering your DB box. This ensures complete isolation of the inverter during maintenance — critical for safety because the inverter generates its own live and neutral even when WAPDA is off. For the DC side (panels to inverter), you need separate\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/dc-breaker\"\u003eDC circuit breakers\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003erated for your system voltage (500V, 1000V, or 1500V). Pair with an\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/fire-extinguisher\"\u003eaerosol fire extinguisher\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor added panel safety. For over and under voltage protection, add a\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.cncelectric.pk\/collections\/voltage-protectors\"\u003evoltage protector\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto your board.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between 2 pole MCB and 1P+N MCB?\u003c\/h3\u003e\n\u003cp\u003eBoth disconnect live and neutral, but they work differently. A 2 pole MCB has two independent trip mechanisms — both poles are protected and can trip independently on overload. A 1P+N MCB has one protected pole (live) and one switched-only pole (neutral) — the neutral follows the live but doesn't have its own overload detection. For main incoming breakers, a true 2 pole MCB (Rs.850) is recommended over 1P+N (Rs.825) because both poles are independently protected.\u003c\/p\u003e\n\u003ch3\u003eCNC 2 pole MCB vs Schneider — which is better?\u003c\/h3\u003e\n\u003cp\u003eBoth CNC and Schneider manufacture 2 pole MCBs to the same IEC 60898-1 standard with 6kA breaking capacity. Schneider (Domae series) is a European brand with pricing at Rs.1,800-2,200 for a 2P 63A. CNC offers identical certified performance at Rs.850 — more than 50% savings — with a 5-year replacement warranty. For residential and commercial use in Pakistan, either brand provides reliable protection. The choice depends on budget and brand preference.\u003c\/p\u003e","brand":"Solarleaf.pk","offers":[{"title":"10A","offer_id":53465430458733,"sku":null,"price":900.0,"currency_code":"PKR","in_stock":true},{"title":"16A","offer_id":53465430491501,"sku":null,"price":900.0,"currency_code":"PKR","in_stock":true},{"title":"20A","offer_id":53465430524269,"sku":null,"price":900.0,"currency_code":"PKR","in_stock":true},{"title":"25A","offer_id":53465430557037,"sku":null,"price":900.0,"currency_code":"PKR","in_stock":true},{"title":"32A","offer_id":53465430589805,"sku":null,"price":900.0,"currency_code":"PKR","in_stock":true},{"title":"40A","offer_id":53465430622573,"sku":null,"price":900.0,"currency_code":"PKR","in_stock":true},{"title":"63A","offer_id":53465430655341,"sku":null,"price":900.0,"currency_code":"PKR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/8280\/1261\/files\/Screenshot2026-06-18220455.png?v=1781804211","url":"https:\/\/solarleaf.pk\/products\/2-pole-mcb-10a-63a-ac-circuit-breaker","provider":"Solarleaf.pk","version":"1.0","type":"link"}