OTM40E4C3D220C_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Parameters Specification Typical Value / Description Product Type Motorized Change‑Over / Transfer Switch Model OTM40E4C3D220C Number of Poles 4 poles (three phases + neutral) Rated Operational Current ~40 A Rated Operational Voltage Low-voltage AC system (up to ~690 V) Rated Insulation Voltage (Ui) Suitable for low-voltage distribution systems Impulse Withstand Voltage (Uimp) Several kV Motor/Control Voltage ~220 V AC Transition Type Open transition change‑over Operating Modes Motorized automatic + manual handle operation Safety Features Mechanical interlock prevents simultaneous source connection Mounting Panel or enclosure mount Typical Applications Automatic/remote load transfer between utility mains and backup power in industrial and commercial installations

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DESCRIBE

The ABB OTM40E4C3D220C is a 4‑pole motorized change‑over and transfer switch designed to transfer electrical loads between two independent AC power sources (such as utility mains and a backup generator) in three‑phase electrical systems. It is part of ABB’s OTM_C series of motorized change‑over switches, which are engineered to provide reliable and safe switching with both automatic (via motor operator) and manual operation modes. The switch includes mechanical interlocks to ensure the two power sources remain isolated and cannot be connected to each other simultaneously. This makes it suitable for industrial, commercial, and critical power applications where continuity of supply is required.

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