OTM250E4C11D380C_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Parameters Specification Typical Value / Description Product Type Automatic Transfer Switch (ATS) / Motorized Change‑Over Switch Model OTM250E4C11D380C Number of Poles 4 Poles (three phases + neutral) Rated Operational Current ~250 A class for AC circuits Rated Operational Voltage Up to 1000 V AC main circuit Rated Insulation Voltage (Ui) ~1000 V Impulse Withstand Voltage (Uimp) ~12 kV Thermal Current (Ith) ~250 A (continuous) Short‑Time Withstand Current ~8 kA for 1 s Rated Operational Power Up to ~140 kW at 380–415 V AC Motor / Control Supply Designed for integration with motor operator and external control logic (motor operator supply usually separate) Operating Modes Motorized automatic switching and manual override Mechanical Interlock Yes — prevents simultaneous connection of sources Mounting Panel or enclosure mount Degree of Protection Typical front panel IP20 Pollution Degree 3 (industrial environments) Typical Application Automatic source transfer between mains and generator for industrial/commercial power systems

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DESCRIBE

The ABB OTM250E4C11D380C is a 4‑pole automatic transfer switch (ATS) / motorized change‑over switch designed to automatically and reliably transfer electrical loads between two independent AC power sources (e.g., utility mains and a backup generator) in three‑phase low‑voltage power distribution systems. It is part of ABB’s OTM_C_D family of motorized change‑over switches, which provide safe, coordinated transfer operations with motorized automatic control and manual override capability. The switch incorporates mechanical interlocking and isolation to prevent both sources from being connected at the same time, improving safety and continuity of service in industrial, commercial, and critical power applications. Motor operation enables integration with external ATS controllers for fully automatic operation

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