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OTM40F4CM230V

ABB OTM40F4CMA230VThis is a motorized change‑over switch designed for industrial electrical distribution and control applications. It enables switching between two power sources (normal and alternate) either automatically (via the 230 V AC motor drive) or manually using the supplied handle. It’s a compact and robust solution for controlled power transfer in panels, switchboards, or generator circuits.

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Technical Parameters Parameter Specification Rated Operational Current (Ie) 40 A in various AC utilization categories (AC‑21A/AC‑22A/AC‑23A) at 380–415 V, 500 V, and 690 V AC Number of Poles 4 (three phases + neutral) Rated Operational Voltage Up to 800 V AC (main circuit) Rated Insulation Voltage (Ui) 800 V Rated Impulse Withstand Voltage (Uimp) 8 kV Rated Short‑time Withstand Current (Icw) 2.5 kA for 1 s Rated Operational Power (AC‑23A) ~18.5 kW at 400–415 V, 22 kW at 500 V, 37 kW at 690 V AC Thermal Current (Ith) 40 A Control Voltage (Motor) 230 V AC (motor drive to operate switch) Manual Operation Direct mounted handle included Cable Cross‑Section Range ~2.5–25 mm² or 2×2.5–16 mm² (typical) Degree of Protection (Front) IP20 Pollution Degree 3 (industrial environment) Mounting Type Base/front mounting Switch Transition Type Open transition Standards Compliance IEC/EN 60947 series typical for switch disconnectors