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
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.