MCB Miniature Circuit Breaker 40 Amp 3 Pol

3-Pole Miniature Circuit Breakers (MCBs) rated at 40 Amp are heavy-duty safety devices engineered to protect three-phase (400V AC) sub-circuits or high-power single-phase machinery. In residential and commercial setups, a 40A 3P breaker is the standard industry selection for safeguarding 4-Ton to 5-Ton central or cabinet air conditioning units, large instantaneous electric water heaters, commercial kitchen equipment, and mid-sized industrial pump motors.Available Brands & Estimated Pricing in PakistanMCB pricing relies primarily on the short-circuit breaking capacity (typically 6kA or 10kA), brand tier, and origin certifications. Estimated market retail prices include:Brand / Model SeriesApprox. Retail Price (Each)Breaking Capacity / CharacteristicsClopal Heavy Duty 3P₨ 1,650 – ₨ 2,1006kA / Budget-friendly residential optionCHINT NXB-63 (3-Pole)₨ 2,450 – ₨ 3,1006kA / Highly reliable standard commercial gradeHager HM340 (3-Pole)₨ 3,950 – ₨ 4,80010kA / Premium European industrial buildSchneider Acti9 (iK60N)₨ 4,200 – ₨ 5,3006kA / Premium compact distribution designABB SH203-C40 (3-Pole)₨ 4,400 – ₨ 5,5006kA / Global high-performance standardSchneider Acti9 (C60H)₨ 6,400 – ₨ 7,80010kA / Heavy commercial and industrial grade(Note: Prices fluctuate slightly based on currency values and localized vendor inventory margins. You can track live commercial rates or verify current batches through distributors like W11Stop, Purchaser.com.pk, or localized wholesale networks in main trade hubs).Core Technical Specs & StructureTrip Curve Class (Curve C): These 40A breakers utilize a standard C-Curve trip profile, which trips instantaneously at 5 to 10 times the rated current. This safely accommodates the temporary inductive inrush current spikes seen when large electric motors or compressor pumps cycle on.Dual Protective Mechanism: Employs an internal bimetallic strip for slow thermal tripping against continuous operational overloads, paired with a fast magnetic coil solenoid for instant protection against short-circuit faults.Standard Mounting: Built with a universal snap-on layout to fit standard 35mm DIN-rails inside residential distribution boards (DBs) and main panel boxes.Safety Compliance: Engineered and tested in accordance with international safety metrics like IEC/EN 60898-1 or IEC/EN 60947-2.