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MT250

The Schneider Electric MT250 is a Molded Case Circuit Breaker (MCCB) designed for the protection of low‑voltage electrical distribution systems. It is engineered to provide reliable protection against overload, short‑circuit, and fault currents, ensuring that electrical equipment and circuits remain safe under adverse conditions.

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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