Shakti Switchgears

Here’s a summary of Schneider Electric’s Acti 9 RCCB (Residual-Current Circuit Breaker) — what it is, what it protects against, and the kinds of models available.

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What is Acti 9 RCCB

An RCCB (Residual-Current Circuit Breaker) is a protective device that detects leakage (earth/fault current) and disconnects the circuit if leakage current exceeds a threshold — protecting against electric shock and preventing fire hazards due to insulation faults or ground faults.

The Acti 9 RCCBs belong to the modular “Acti 9” range by Schneider Electric — designed for household, commercial, or industrial installations for safety against earth-leakage and insulation failures.

They complement normal over-current protection (MCBs), providing an extra layer of safety by focusing on leakage / residual current rather than overload/short-circuit.

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Key Features & Common Specifications

Rated current range: Acti 9 RCCBs are available with nominal currents up to ~125 A depending on variant.

Poles: Many versions are 2-pole (for single-phase circuits) or 4-pole (for 3-phase systems including neutral).

Sensitivity / Leakage threshold: Common sensitivities are 25 mA, 30 mA, 100 mA etc. — these define how much leakage current triggers trip. For example, some 2-pole 25 A RCCBs have 30 mA sensitivity.

Protection class: Typically “AC-type” (protects against standard AC residual currents).

Standards compliance: Acti 9 RCCBs comply with relevant international standards for RCCBs / earth-leakage devices.

Indicators & safety: Many models provide visual trip indication (fault occurred), and have user-friendly design including DIN-rail mounting, modular format, and IP-type safety protections (e.g. safe terminals).

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Example Acti 9 RCCB Models

Quick Highlights

Schneider Electric Acti 9 iID RCCB 2‑Pole 25 A 30 mA — Good for small residential circuits (lighting / sockets) where earth-leakage protection is needed.

Schneider Electric Acti 9 iID RCCB 4‑Pole 63 A 100 mA — Suitable for larger circuits or sub-distribution boards, e.g., in homes or small commercial setups.

Schneider Electric Acti 9 xID RCCB 4‑Pole 80 A 300 mA — Designed for heavier loads or main incoming circuits, with higher current and leakage thresholds (useful for equipment-heavy installations).

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Typical Use Cases

Protection of household wiring — lights, sockets, small appliances — from earth-leakage and accidental contact with live/faulty parts.

Safety in commercial / office buildings — distribution boards feeding modular circuits, especially where multiple sub-circuits and sensitive loads exist.

Use in industrial or workshop-type setups — as part of overall electrical safety, especially in installations with water, moisture, or risk of insulation degradation.

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