A Legrand DX³ 16 A MCB is a modular, DIN‑rail mounted thermal‑magnetic circuit breaker designed to protect electrical circuits from overloads and short‑circuits. It’s commonly available in 1‑pole (1P), 2‑pole (2P), or 3‑pole (3P) versions with selectable C or D tripping curves for varying load types. All variants conform to international safety standards and offer compact protection in residential and light industrial setups.
- Available in Curve C (magnetic trip at 5–10× rated current.
- C-curve models: typically up to 25–50 kA at 400 VAC depending on pole configuration
- D-curve models: similar or higher capacity (often up to 50 kA at 230 VAC)
- Fits standard DIN‑rail with module widths ranging from 1 (≈18 mm for 1P) to 6 modules for multi‑pole versions
