Lifecycle and sourcing
For a BOM line requiring a railway-certified 3+N MCB at 20 A, this order code is the direct fit — no substitution needed. Sourced and quoted to order against an RFQ through independent distribution.
What the ratings mean for fit
The 10 kA breaking capacity at 400 V means this breaker can safely interrupt fault currents up to that level without welding contacts or cascading failure — important for railway sub-distribution where available fault current can be high. Three poles plus a switched neutral (3+N) makes it suitable for three-phase plus neutral circuits typical in rail vehicle auxiliary supplies or station power distribution. The 20 A rating and C-curve handle the start-up draw of HVAC compressors, lighting ballasts, or battery chargers found in railway environments without nuisance tripping.