Key Specifications Brand: Schneider Electric Product Series: Masterpact MVS Product Name: MVS 04N Product Type: Low-voltage power circuit breaker (Air circuit breaker - ACB) Model / Reference: MVS04N3F6A5 Number of Poles: 3P (3 Poles) Protection Unit: Electronic trip unit (Micrologic type likely included, often 5.0 A or similar based on the "5" in the code) Control Voltage: Typically 220-240V AC / 110-130V DC for the control unit (depending on specific MX/MN coil configuration). Electrical Parameters Rated Operational Voltage (Ue): 690 V AC (50/60 Hz) Rated Insulation Voltage (Ui): 750 V DC / 800 V AC Rated Impulse Withstand Voltage (Uimp): 8 kV Rated Current (In): 400 A Breaking Capacity (Icu) at 440 V: N (Standard Performance): 42 kA RMS Utilization Category: Category B (Selective protection) Number of Poles: 3 poles + protected neutral (if specified as 4P, but here it's 3P) Mounting Mode: Fixed (as indicated by the "F" in the code) Additional Features Long-time protection (L): Adjustable Short-time protection (S): Adjustable with time delay (for selectivity) Instantaneous protection (I): Adjustable Ground fault protection (G): May be available depending on trip unit version. Standards: Compliant with IEC 60947-1 and IEC 60947-2.