Specifications General Product Type: Molded Case Circuit Breaker (MCCB) Series / Family: MT series Model: MT250 Number of Poles: Usually 3-pole (for three-phase circuits) Rated Current (In): Typically 250A or configurable within a range Mounting Type: Panel or distribution board installation Application: Protection of three‑phase electrical distribution circuits Electrical Ratings Rated Operational Voltage (Ue): Designed for low‑voltage systems, commonly up to 690V AC Rated Frequency: 50/60 Hz Rated Insulation Voltage (Ui): Usually around 500V for low‑voltage protection Rated Impulse Withstand Voltage (Uimp): Can withstand transient overvoltages (typically 6kV) Protection & Trip Characteristics Overload Protection: Yes — thermal protection to respond to sustained overload conditions Short-Circuit Protection: Yes — magnetic protection for short-circuit events Trip Characteristics: Thermal‑magnetic, offering adjustable protection settings for both overload and short‑circuit conditions Breaking Capacity & Performance Breaking Capacity: Engineered to handle fault currents typically encountered in low‑voltage power distribution systems Performance: Reliable interruption of fault currents to protect circuits and downstream loads Mechanical & Environmental Terminal Connections: Screw or clamp terminals for secure wiring connections Mechanical Durability: Designed for long service life and repeated switching operations Design: Compact and robust housing suitable for installation in electrical panels, switchboards, and control systems Operating Environment: Suitable for indoor electrical installations