Technical Specifications / Parameters
Parameter Specification
Manufacturer Type Code 2P40A50A63A
Brand ABB
Product Line Typically from the System PRO M compact® (SH/S200 Series) or similar ABB MCB range.
Device Type Miniature Circuit Breaker (MCB)
Number of Poles 2-Pole (2P)
Rated Current (In) 40 A
Rated Operational Voltage (Ue) 230/400V AC
Rated Insulation Voltage (Ui) 500V AC
Tripping Characteristic A Curve (Very fast magnetic response. Instantaneous tripping range: 2In to 3In).
Rated Breaking Capacity (Icn) Typically 6 kA or 10 kA, depending on series (e.g., SH series: 6kA, S200 series: 10kA).
Standards Compliance IEC/EN 60898-1 (Primary standard for household and similar installations).
Terminal Type Cage Clamp Terminal
Connectable Conductors Rigid/Flexible Copper: 1 - 35 mm² (typical for this current rating)
Mechanical Life ≥ 20,000 operations
Electrical Life ≥ 20,000 operations (at In)
Mounting DIN Rail Mounting (35mm symmetrical rail, EN 60715)
Module Width 36 mm (2 Poles)
Primary Functions Overload (Thermal) Protection, Very Fast Short-Circuit Protection
The ABB 2P40A50A63A is a 2-pole, 40A, "A" characteristic Miniature Circuit Breaker (MCB) designed for final distribution circuits. This MCB provides reliable protection against overloads and short-circuits for electrical cables and equipment in residential, commercial, and light-industrial installations. The "A" tripping characteristic is a specialized curve that provides a very fast magnetic trip, designed specifically for protecting long cable runs, circuits with semiconductors, or highly sensitive equipment where even a moderate overcurrent must be interrupted extremely quickly to prevent damage or fire risk.