CC50/4SA120 is a 4-pole midi contactor designed for industrial switching and control applications. It features a rated operational voltage of 690V, rated insulation voltage of 690V, and operates at 50/60 Hz frequency with a rated impulse withstand voltage of 6 kV. The contactor is rated for 80 A at 200/240V, 56 A at 380/400V, 80 A at 500/550V, and 70 A at 690V in AC-1 duty, with a maximum operating rate of 1800 operations per hour and mechanical durability of 15 million operations. The unit features screw clamp terminals with M3.5 coil terminals and M6 main contacts, weighs 1.2 kg in AC coil configuration, and is commonly used in motor control, power distribution, and industrial automation systems where reliable switching of high-current loads is required.