Residual Current Circuit Breaker (RCCB / ELCB) — Four‑Pole

Protect three‑phase systems and the people who use them with the H‑RCCB‑ELCB‑FP — a compact, high‑safety four‑pole residual current breaker that disconnects all phases and neutral the moment an earth‑leak is detected.

Add a layer of confidence to three‑phase power

Designed for modern commercial, industrial, and large residential installations, the four‑pole RCCB gives full‑system protection by monitoring all conductors simultaneously. When leakage appears, it trips fast, preventing electric shock, limiting fire risk from insulation faults, and protecting sensitive equipment.

What it does

The H‑RCCB‑ELCB‑FP continuously compares currents across the three phases and neutral. Any imbalance (residual current) — a sign of current leaking to earth — triggers an immediate trip that isolates the entire supply. This keeps personnel and machinery safe and reduces downtime caused by unnoticed earth faults.

Key features

• Four‑pole protection — isolates all three phases plus neutral for complete circuit disconnection.
• Human & equipment safety — detects small leakage currents to prevent electric shock and fire.
• Selectable sensitivity options (commonly 30mA for personal protection and higher mA for selective protection) — choose based on application.
• Compact DB mount form — fits neatly into consumer units, distribution boards, and switchgear.
• Fast, reliable trip action — reduces damage and exposure from persistent leakage.
• Robust build for industrial use — engineered for continuous operation in demanding environments.

Why this RCCB stands out

• Full three‑phase safety — simultaneous isolation prevents unbalanced faults and secondary damage.
• Life‑saving protection — low‑mA trip options stop dangerous touch currents before they cause harm.
• Fire risk reduction — catches leakages that standard MCBs won’t detect.
• Flexible use — ideal for 3‑phase motors, compressors, panels, generator outputs, and industrial loads.
• Easy integration — installs into existing switchboards to quickly raise protection standards.

Ideal applications

• Three‑phase distribution panels and main incomers
• Motor control centres (MCCs) and industrial machinery
• Generator and inverter outputs for 3‑phase systems
• Commercial buildings, workshops, and factories where neutral must also be isolated

Installation & selection note

Confirm the required current rating and trip sensitivity for your application and have a qualified electrician install and test the device. If you need specific ampere ratings, trip curves, or accessories (auxiliary contacts, shunt trips), check the product datasheet or request technical details from the supplier before purchase.

Ready to secure your three‑phase system? Choose the H‑RCCB‑ELCB‑FP for complete conductor isolation, fast earth‑leak detection, and dependable protection across the whole circuit — a simple upgrade that significantly improves safety and reliability.