Solar Breaker Pakistan

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What is a solar (DC PV) breaker? A solar breaker is a polarised, voltage-rated DC circuit breaker designed for photovoltaic string protection — rated 250 / 500 / 1000 / 1500 V DC depending on number of poles in series. Pakistani residential PV uses 1000 V strings (4-pole DC MCB); commercial PV uses 1500 V strings (4-pole, YCB8s family). Built to IEC 60947-2 for industrial DC breakers, with arc-quenching chambers sized for the higher energy of non-zero-crossing DC arcs. Poles Max V DC Use 1P 250 V 12 / 24 V battery, small UPS 2P 500 V 48 V telecom, single PV string 4P 1000 V Residential solar (most common) 4P (YCB8s family) 1500 V Commercial / utility-scale solar Pair with DC SPD + DC fuse for complete combiner-box protection. See SPD sizing guide . CNC Electric is Pakistan's authorised distributor of solar circuit breakers — DC-rated MCBs and MCCBs purpose-built for photovoltaic strings, battery banks, and inverter DC bus protection. Standard 500V, 1000V and 1500V DC voltage ratings, IEC 60947-2 certified, with 5-year warranty from local Lahore stock. Solar Breaker Price in Pakistan 2026 Type Voltage / Amp Application Price (PKR) DC MCB 2P Solar 500V × 16-63A 6-12 panel string Rs. 1,600 – 1,950 DC MCB 4P Solar 1000V × 20-63A 12-24 panel residential string Rs. 3,400 – 3,700 DC MCB 4P Commercial 1500V × 32A Large commercial PV plant Rs. 3,800 – 4,220 DC Battery Breaker 500V × 125A Inverter battery bus Rs. 2,500 – 2,800 Solar DC Isolator 4P 1000V × 25-63A Rooftop service disconnect Rs. 2,800 – 4,500 Solar SPD DC 600V / 1000V / 1500V Lightning surge protection Rs. 2,900 – 8,600 DC Fuse Holder 10×38 1000V × 1-30A gPV String fuse protection Rs. 380 – 850 Why You CANNOT Use AC Breakers on Solar DC The single most dangerous mistake in Pakistani solar installs is using AC MCBs/MCCBs on the DC side. AC current crosses zero 100 times per second — the natural way arcs self-extinguish. DC current never crosses zero, so the arc keeps burning when you try to open the breaker. With