The Legrand RX³ 10 A MCB is a DIN-rail mounted thermal-magnetic circuit breaker engineered for residential and light commercial circuits. Available in 1P, 2P, and 3P (or 4P) configurations, it supports tripping curvatures Type B or C, depending on load requirements for inrush sensitivity and rapid protection.
- Curve B variants: Trips between ~30 A–50 A (3 ×–5 × In), ideal for sensitive lighting or control circuits
- Curve C variants: Trips between ~50 A–100 A (5 ×–10 × In), suitable for moderate inrush loads like small motors or compressors
- 10 kA at 230 VAC; 6 kA at 400 VAC, depending on curve and variant
- Fits standard DIN-rail (1 module ≈18 mm for 1P, ~2–3 modules for 2P/3P)
- Environment range: −25 °C to +70 °C
