Circuit Breakers

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What is a circuit breaker? A circuit breaker is an automatic switch that protects an electrical circuit from overload and short-circuit faults by interrupting current flow. In Pakistan, household and commercial breakers (MCB, MCCB, RCCB, RCBO) comply with IEC 60898-1 (residential) and IEC 60947-2 (industrial). Common ratings range from 6 A to 1250 A , with trip curves B, C, and D matching resistive, mixed, and inductive loads. Breaker type Standard Amp range Use MCB (Miniature) IEC 60898-1 6–125 A Home / small commercial MCCB (Moulded Case) IEC 60947-2 16–1600 A Industrial / heavy loads RCCB / RCBO IEC 61008 / 61009 16–125 A Earth-leakage / life safety CNC Electric Pakistan stocks IEC-certified MCB, MCCB, RCCB, RCBO and DC breakers under the YCB series at the catalogue below. Browse circuit breakers by type All MCB / Miniature Circuit Breakers MCCB / Moulded Case ACB / Air Circuit Breakers RCCB / RCBO ELCB Earth Leakage variants DC Breakers DC MCCB WiFi Smart Breakers Updated: September 2026 · CNC Electric Pakistan Circuit Breaker Buying Guides (Updated June 10, 2026) MCB vs MCCB vs RCCB vs RCBO — Pakistani buyer comparison Best Electrical Equipment Tiers — 5-tier IEC certification framework Switch Board Price 2026 — DB, MSB, MCC, PCC guide RCBO Type AC vs A vs B Buyer Guide Best Breaker for 1.5-Ton AC in Pakistan 2026 Best Breaker for 3-Ton AC in Pakistan 2026 WiFi MCB / WiFi Breaker Pakistan 2026 Circuit Breaker — Pakistan Quick Answer (May 2026) A circuit breaker in Pakistan automatically disconnects an electrical circuit when current exceeds a safe limit, protecting wiring and appliances from overload, short circuit, or earth fault. CNC Electric stocks the full range — MCB (miniature, for homes), MCCB (moulded case, for higher current), RCCB (residual-current, shock protection), RCBO (combined MCB+RCCB), and ACB (air, for industrial). Prices range from Rs. 245 (1P 6A MCB) to Rs. 95,000 (4P 1600A ACB) . Type Best for Current Range CNC 2026 Price (PKR) MCB (Miniat

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