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  • CNC RCBO 1P+N 32A-63A | Earth Leakage Breaker front view earth leakage breaker PakistanCNC RCBO 1P+N 32A-63A | Earth Leakage Breaker angled view earth leakage breaker Pakistan
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    RCBO 1P+N 32A-63A | Earth Leakage Breaker

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    Not sure which voltage protector you need? Try our VA Protector Product Finder Tool — Pakistan's first interactive selector. RCBO 1P+N is the smart choice for single-phase circuits in Pakistan when you need earth leakage breaker protection and overload protection in one device. This...
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  • CNC RCBO 4P Residual Current Circuit Breakers 32A, 63A YCB6HLN front view earth leakage breaker Pakistan
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    RCBO 4P Residual Current Circuit Breakers 32A, 63A YCB6HLN

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    Not sure which voltage protector you need? Try our VA Protector Product Finder Tool — Pakistan's first interactive selector. 4 pole RCBO buyers in Pakistan choose the RCBO 4P 32A-63A YCB6HLN when they need one device that combines earth leakage protection, overload protection, and...
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Updated: May 2026 · CNC Electric Pakistan

RCCB (Residual Current Circuit Breaker) — Pakistan Quick Answer (May 2026)

A RCCB in Pakistan trips within 30 milliseconds when it detects an earth-leakage current as small as 30 mA — the threshold above which shock causes ventricular fibrillation. Unlike an MCB (which protects wires from overload), an RCCB protects people from electric shock. CNC 2026 prices range from Rs. 1,500 (2P 25A 30mA) for bathrooms / kitchens to Rs. 4,200 (4P 100A 30mA) for 3-phase mains.

Use Case Recommended RCCB CNC Model 2026 Price (PKR)
Bathroom / wet area (Type AC, 30 mA) 2P 25A 30 mA YCL1-63 2P 25A 1,500
Kitchen circuit (Type A) 2P 40A 30 mA YCL1-63 2P 40A 2,200
Single-phase home main 2P 63A 30 mA YCL1-63 2P 63A 2,800
3-phase home/shop main 4P 63A 30 mA YCL1-63 4P 63A 3,500
3-phase factory main 4P 100A 30 mA YCL1-100 4P 100A 4,200
Single-module (MCB + RCCB) RCBO 1P+N 16A–63A 30 mA YCB6LE-1P+N 1,800–3,200

Quick decision: For Pakistani home → start with 2P 63A 30 mA RCCB on the main (PKR 2,800). Add 2P 25A 30 mA dedicated RCCBs for bathrooms/wet areas (PKR 1,500 each). For 3-phase houses → 4P 63A 30 mA at PKR 3,500.

30 mA vs 100 mA vs 300 mA: 30 mA = personal shock protection (mandatory for sockets/bathrooms). 100 mA / 300 mA = fire protection only (not life safety). Always use 30 mA for any circuit accessible to humans. ✅ All CNC RCCBs: IEC 61008 compliant · PSQCA-approved · 1-year warranty.

RCCB Breaker Price in Pakistan 2026 — Complete Buyer's Guide

An RCCB — Residual Current Circuit Breaker, also called an earth-leakage breaker or ELCB — disconnects a circuit the instant it detects current escaping to ground (typically through a person's body or wet wiring). It is the single most important safety device protecting Pakistani families from fatal electric shock, kitchen-tap shocks, geyser leakage, and bathroom electrocution. CNC stocks the YCB6HLN series RCBO (combined RCCB + MCB protection) in 1P+N and 4P configurations from Rs. 1,750.

Every CNC RCCB / RCBO carries IEC 61009-1 compliance, 30 mA residual-current sensitivity (the lethal threshold for the human heart is around 100 mA), 6 kA short-circuit rating, and a 5-year warranty. Stocked locally in Lahore for same-day dispatch nationwide.

CNC RCCB / RCBO Price Table — Pakistan 2026

Model Type Poles Rating Trip Sensitivity Price (PKR)
YCB6HLN 1P+N 32A RCBO (RCCB + MCB) 1P+N 32 A 30 mA Rs. 1,750
YCB6HLN 1P+N 63A RCBO (RCCB + MCB) 1P+N 63 A 30 mA Rs. 1,850
YCB6HLN 4P 32A RCBO 3-Phase 4P 32 A 30 mA Rs. 3,200
YCB6HLN 4P 63A RCBO 3-Phase 4P 63 A 30 mA Rs. 3,200

Free delivery across Pakistan. 5-year warranty on all CNC RCCBs / RCBOs. Bulk & dealer pricing — WhatsApp +92 326 1111376.

What Is an RCCB? (Full Form & Working Principle)

RCCB stands for Residual Current Circuit Breaker. The full form is sometimes written as RCD (Residual Current Device) in older British wiring standards — both mean the same thing. In Pakistan, the most common term is RCCB.

The working principle is a current-balance check using a small toroidal coil:

  1. Both the live wire and neutral wire pass through a single ring core (the toroid).
  2. Under normal conditions, the current flowing out on the live wire equals the current returning on the neutral wire — they produce equal and opposite magnetic fields in the toroid which cancel out (net flux = zero).
  3. If current leaks to ground anywhere downstream (a person touching a faulty wire, water entering a kitchen socket, a damaged geyser element), the live and neutral currents no longer match. The imbalance creates a net magnetic field in the toroid.
  4. A secondary winding on the toroid picks up this imbalance and drives a tripping solenoid that disconnects the breaker in 30 milliseconds or less — faster than the heart's reaction time to ventricular fibrillation.

The trip threshold is calibrated in milliamperes. 30 mA is the international standard for home use (a level a healthy adult can survive briefly); 100 mA RCCBs exist for industrial use; 10 mA hyper-sensitive versions are used in hospitals and around swimming pools.

RCCB vs RCBO — What's the Difference?

Feature RCCB (pure) RCBO
Protects against Earth leakage only Earth leakage + Overload + Short-circuit
Replaces Nothing (works alongside MCBs) RCCB + MCB combined in one body
DIN module width 2 modules 2 modules (compact 1-module versions exist)
Cost Rs. 1,500 – 3,000 Rs. 1,750 – 3,200
Best for Whole-DB protection (one upstream RCCB feeding multiple MCBs) Individual circuit protection (one RCBO per sub-circuit)

The CNC YCB6HLN series sold here are RCBOs — they combine RCCB + MCB protection in a single body, eliminating the need for a separate MCB on the same circuit. For a typical Pakistani home, this is the simpler choice: one device covers leakage, overload, and short-circuit.

RCCB vs MCB vs MCCB vs ELCB — Complete Comparison

Device Full Form Protects Against Trip Mechanism Typical Rating Where Used
MCB Miniature Circuit Breaker Overload + Short-circuit Thermal + Magnetic 1-125 A Lighting, sockets, sub-circuits
MCCB Moulded Case Circuit Breaker Overload + Short-circuit (higher kA) Thermal + Magnetic (adjustable) 16-2500 A Main panel, industrial
RCCB Residual Current Circuit Breaker Earth leakage (electric shock) Current imbalance via toroid 10-100 A @ 30 mA Home DB, bathroom, kitchen circuits
ELCB Earth Leakage Circuit Breaker Earth leakage (older voltage-operated design) Voltage on earth wire Largely obsolete Legacy installations only
RCBO Residual Current Breaker with Overload All three: leakage + overload + short-circuit Toroid + thermal + magnetic 6-63 A @ 30 mA Modern Pakistani home circuits

For a complete deep-dive into the difference between MCB, MCCB, and RCCB with installation diagrams, read our pillar guide: MCCB Breaker Price in Pakistan 2026 — MCB vs MCCB vs RCCB.

ELCB vs RCCB — The Crucial Difference

Many Pakistani electricians use "ELCB" and "RCCB" interchangeably. They are not the same device.

  • ELCB (Voltage-Operated): The old design from the 1960s-1980s. Detects voltage on the earth wire and trips if voltage rises above safe limits. Requires a working earth connection to detect faults. Fails if the earth wire breaks or has high resistance.
  • RCCB (Current-Operated): The modern replacement (1990s+). Detects current imbalance between live and neutral, independent of the earth wire. Trips even if the earth connection is poor or absent.

Modern Pakistani electrical code requires RCCBs (current-operated) for all new installations. The term "ELCB" is still used colloquially to mean either — but if you are buying today, you want an RCCB or RCBO, not the obsolete voltage-operated ELCB.

Why Every Pakistani Home Needs an RCCB

WAPDA installations rarely come with an RCCB by default — the standard distribution box ships with MCBs only. This means most homes have no protection against:

  • Geyser leakage: water seeping into the heating element, electrifying the hot-water tap. Without an RCCB, the first warning is a fatal shock.
  • Kitchen sink electrocution: wet hands + a damaged appliance plug + a metal sink = lethal current path through the body.
  • Bathroom electric shower / geyser failures: 95% of Pakistani home electrocution deaths involve a wet bathroom.
  • Damaged wiring in walls: 30-year-old TPS wiring with cracked insulation slowly leaks current through the wall to plaster, then to ground — invisible until someone touches a nail in the wall.
  • Faulty appliance double-insulation failure: washing machines and air conditioners with a single damaged ground wire.

The RCCB takes 30 ms to disconnect. The heart starts to fibrillate after about 100 ms of 30 mA current — so a properly-installed 30 mA RCCB literally saves lives.

Where to Install Your RCCB / RCBO

Whole-home protection (single-phase, simple): Mount one CNC YCB6HLN 1P+N 63A immediately after the main MCB at the DB box top. All downstream circuits inherit RCCB protection. Cheap and effective for an existing home.

Per-circuit protection (recommended new builds): Mount one RCBO per high-risk circuit: bathroom, kitchen, geyser, AC outdoor unit, washing machine, garden / outdoor sockets. Use 1P+N RCBOs at 16A or 32A each. This way a fault on the kitchen circuit doesn't black out the bedrooms.

3-phase main panel: Use the CNC YCB6HLN 4P 63A as the main incomer RCCB for any 3-phase installation. Required by code for new commercial and industrial wiring.

Solar hybrid installations: Install RCCB on the AC output side of the hybrid inverter, downstream of the changeover switch. Required for any net-metering installation per NEPRA technical guidelines. See our Net Metering Pakistan 2026 guide.

Bathroom-specific (highest safety): Use a 10 mA RCCB dedicated to bathroom circuit. The 10 mA sensitivity catches micro-leakage from wet conditions that 30 mA models would miss.

How to Test Your RCCB (Every 6 Months)

  1. Locate the small TEST button on the front of the RCCB.
  2. Press it. The breaker should trip within 30 milliseconds with an audible click and the toggle dropping to OFF.
  3. If the breaker does not trip, it is faulty and must be replaced immediately — the safety function is dead.
  4. If it trips correctly, reset by flipping the toggle back to ON.
  5. Repeat every 6 months. Mark the test date with a sharpie on the DB box.

This 30-second test is the difference between a working safety device and a piece of dead plastic. Every electrical safety code globally requires periodic RCCB testing — Pakistan's NEPRA-published wiring guidelines specify 6-month intervals.

Top Picks by Use Case

Best Value (Home Sub-Circuit): YCB6HLN 1P+N 32A. Rs. 1,750 — RCBO with combined leakage + overload + short-circuit protection. View product →

Best for Whole-Home Main: YCB6HLN 1P+N 63A. Rs. 1,850 — handles full home load up to ~14 kW. Mount as the main incomer after WAPDA MCB. View product →

Best for 3-Phase Commercial / Factory: YCB6HLN 4P 32A or 63A. Rs. 3,200 — full 4-pole leakage protection (3 phases + neutral). View product →

Best for Solar / Net Metering: YCB6HLN 4P 63A. Rs. 3,200 — meets NEPRA technical guidelines for net-metering AC-side leakage protection. View product →

CNC vs Schneider vs Chint vs Clopal — RCCB Brand Comparison

Brand Origin Warranty Sensitivity (mA) Combined RCBO? Price for 63 A 1P+N
CNC YCB6HLN Imported, Lahore-stocked 5 years 30 mA standard Yes Rs. 1,850
Schneider Acti9 European premium 3 years 30 mA / 10 mA / 300 mA Yes (iC60 RCBO) Rs. 8,500 – 14,000
Chint NXBLE Imported (China) 2 years 30 mA / 100 mA Yes Rs. 2,800 – 4,500
Clopal Local brand 1 year 30 mA only Limited variants Rs. 1,400 – 2,000
Sky / Generic Chinese Direct import None Variable Limited Rs. 800 – 1,500

CNC offers the longest warranty (5 years) in the mid-price tier, with IEC 61009-1 compliance verified. Schneider is the premium choice for hospitals and high-end commercial. Generic Chinese imports under Rs. 1,000 should be avoided — they often fail the test-button check within 12 months.

Installation Wiring — Single-Phase RCBO

  1. Switch OFF the WAPDA main MCB at the DB box.
  2. Mount the CNC YCB6HLN 1P+N on the DIN rail, immediately downstream of the main MCB.
  3. Connect the L (live) input to the load side of the main MCB. Connect the N (neutral) input to the neutral bar.
  4. Connect the L OUT to the live bus feeding sub-circuits. Connect the N OUT to a separate neutral bar that serves only RCCB-protected circuits.
  5. Critical: do not mix neutrals between RCCB-protected and unprotected circuits — this causes nuisance tripping from neutral-to-earth current paths.
  6. Power on, then press the TEST button to verify the trip mechanism works.

Bulk & Dealer Pricing

CNC YCB6HLN RCBOs are stocked in Lahore with same-day dispatch nationwide. Bulk pricing (50+ units) and contractor / electrician dealer rates available for builders, panel manufacturers, and switchgear assemblers. Solar installer bundles (RCBO + DC breaker + SPD + AC isolator) priced separately. WhatsApp +92 326 1111376 with your project requirement.

Frequently Asked Questions — RCCB / RCBO Pakistan

What does RCCB stand for?

RCCB stands for Residual Current Circuit Breaker. It is also called an earth-leakage breaker or RCD (Residual Current Device) in British wiring standards. The device disconnects the circuit the instant it detects current leaking to ground — protecting against electric shock and electrocution.

What is the difference between RCCB and RCBO?

An RCCB (pure) protects against earth leakage only — it must be paired with a separate MCB for overload and short-circuit protection. An RCBO combines both functions in one device: leakage + overload + short-circuit in a single 2-module DIN-rail body. For a typical Pakistani home, an RCBO like the CNC YCB6HLN is the simpler and more compact choice.

What is the difference between RCCB, RCD, and RCBO?

RCCB and RCD mean the same thing — both detect residual (leakage) current and trip. The terminology difference is regional: RCD is the British / EU standard term, RCCB is the IEC / global term used in Pakistan, India, and Asia. RCBO is different: it adds overload and short-circuit protection (MCB function) to the RCCB / RCD core function in one device.

What is the difference between MCB and RCCB?

An MCB (Miniature Circuit Breaker) protects against overload and short-circuit faults — it does not protect against earth leakage or electric shock. An RCCB detects current leakage to ground and disconnects to prevent electrocution — it does not protect against overload. Both are needed for complete protection, which is why most homes now use RCBOs (combined MCB + RCCB in one device).

What is the difference between ELCB and RCCB?

ELCB (Earth Leakage Circuit Breaker) is the older voltage-operated design from the 1960s-1980s. It detects voltage on the earth wire and requires a working earth connection to function. RCCB is the modern current-operated replacement (1990s+) — it detects current imbalance between live and neutral, independent of the earth wire. Modern Pakistani electrical code requires RCCBs for all new installations; the obsolete voltage-operated ELCB should not be specified for new work.

What is the working principle of an RCCB?

An RCCB uses a small toroidal coil through which both the live and neutral wires pass. Under normal conditions, the currents in live and neutral are equal and opposite, producing zero net magnetic field. If current leaks to ground (through a person or wet wiring), the imbalance creates a net magnetic field in the toroid. A secondary winding picks up this imbalance and drives a tripping solenoid, disconnecting the breaker in 30 milliseconds or less.

What size RCCB do I need for my home?

For a typical Pakistani home (8-12 kW load), use a 63 A 1P+N RCBO at 30 mA sensitivity as the main protection. For per-circuit protection, use 32 A 1P+N RCBOs on individual bathroom, kitchen, geyser, and AC circuits. For 3-phase commercial or factory installations, use a 4-pole 32 A or 63 A RCBO at the main panel.

What is the RCCB rating for safety — 30 mA or 100 mA?

30 mA is the international standard for protecting people from electric shock — this is the level at which the human heart begins to fibrillate after ~100 ms of exposure. A 30 mA RCCB trips in under 30 ms, faster than the heart's response time. 100 mA RCCBs exist for industrial fire-prevention duty (where personal contact is not the concern); 10 mA hyper-sensitive RCCBs are used in hospitals and wet areas like swimming pools.

Why does my RCCB keep tripping?

Most common causes: (1) genuine earth leakage in a damaged appliance or wet socket — disconnect appliances one by one to identify; (2) mixed neutrals between RCCB-protected and unprotected circuits — wiring fault; (3) high accumulated background leakage from many appliances on one RCCB — split protection across two RCBOs; (4) faulty RCCB itself — test with the TEST button and replace if it doesn't trip on demand.

How often should I test my RCCB?

Press the TEST button every 6 months. The breaker should trip with an audible click and the toggle dropping to OFF within 30 milliseconds. If it doesn't trip, the safety function is dead and the RCCB must be replaced immediately. NEPRA-published Pakistani wiring guidelines specify 6-month intervals. Mark the test date on the DB box with a permanent marker.

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