Circuit breaker isolation device

Start by identifying whether your circuit needs single‑phase (1P) or three‑phase (3P) protection. The acts in this group include 1P variants and 3P variants with current ratings from 10A up to 63A, all designed for distribution use. Look for the C‑curve type, which suits general protection of typical circuits, and pick a rating that matches the expected load (for example, 16A, 20A, 25A, 32A, or 63A). Selecting the correct pole count and rating ensures reliable protection and easy wiring in your panel.

The most complex attribute combines pole count (1P vs 3P) with the current rating (such as 32A or 25A) and the curve class (C curve). A 1P, 32A device protects a single live conductor, ideal for lighting and small outlets, while a 3P, 32A unit protects three live conductors for multi‑phase circuits. The C curve indicates a standard magnetic response suitable for general purpose protection. By matching these three aspects to your circuit, you’ll avoid under- or over‑protection.

For most home or small office layouts, a homeowner will typically choose 1P devices with moderate ratings (like 16–32A) for lighting and simple outlets, keeping wiring straightforward. In larger or more complex installations, a professional installer might select 3P devices with higher ratings (such as 25–63A) to protect multi‑phase distribution boards. Each choice aligns with how many conductors need protection and the kind of loads you’re powering, ensuring safe, reliable operation across all circuits.

Ensure you select the matching pole count and current rating for each circuit being protected, and install only devices designed for distribution protection within your panel. Acti9 iK60N family devices are built for distribution use and are compatible with standard electrical boards that accommodate miniature circuit breakers. Verify mounting fit, terminal type, and the same protection level across circuits to maintain consistent safety and ease of inspection, maintenance, and future upgrades.

Yes. The lineup includes 1P variants at ratings such as 16A, 20A, 25A, 32A, and 63A, as well as 3P variants with similar or higher ratings like 32A or 25A. This diversity lets you tailor protection for lighting circuits, power outlets, and larger distribution strings. Matching the current rating to the circuit load and selecting the correct pole count ensures each branch is properly protected without nuisance tripping or undersized protection.

Always power down the installation, isolate the circuit, and mount the unit in a suitable distribution board designed for miniature breakers. Use the same type and rating for replacements to maintain consistent protection. The installation should follow local electrical standards and manufacturer guidelines, with attention to secure terminal connections and proper wire sizing. If you are unsure, consult a qualified electrician to ensure correct wiring and safeguarding of all connected loads.