ABB 1SCA120096R1001 OTM40F3CMA230V 3P 2.5 kA Icw Motorized Changeover Switch

The ABB 1SCA120096R1001 is an OTM40F3CMA230V motorized changeover switch rated 40 A at 3 poles, driven by a 110-240 V AC/DC motor to move a load between two sources. It carries a 2.5 kA short-time withstand for 1 s and an 800 V insulation rating. Like other CMA-suffix units, it has no built-in control logic, so automatic switching requires a separate controller.

Selection Notes

At 40 A the 1SCA120096R1001 is the smallest motorized changeover switch in this batch, sized for a distribution board rather than a main incomer, and its 2.5-16 mm2 terminal range matches that scale of cabling. Like the 125 A CMA unit, it has no onboard controller, so a separate ATS control module handles the automatic source-selection logic; the motor itself only executes the switching command. Where a self-contained 40 A, 3-pole device is preferred instead, ABB's Compact ATS variant with the 20D or 21D controller is the single-box alternative.