Thermomagnetic Switch 30-42A 50kA MS165-42 from ABB. Manual thermomagnetic motor switch, known for protecting motors from short circuits, overloads, and phase failures without the need for fuses.

• Rated operating voltage: 690 V AC
• Rated operational current: 42 A
• Rated instantaneous short-circuit current setting: 630 A
• Adjustment range: 30... 42 A
• Rated operational power AC-3 (P e): 22 kW (400 V)
• Rated impulse withstand voltage (U imp): 8 kV
• Rated insulation voltage (U i): 1000 V
• Number of Poles: 3
• Electrical endurance: 25000 cycles
• Mechanical endurance: 50000 cycles
• Dimensions: Width 55mm, Height 142.65mm, Length 122.1mm
• Rated short-circuit breaking capacity (I cs): 50 kA (230 V AC, 400 V AC, 440 V AC), 30 kA (500 V AC), 10 kA (690 V AC), 100 kA (250 V DC, 3 poles in series)
• Rated ultimate short-circuit breaking capacity (I cu): 50 kA (230 V AC, 400 V AC, 440 V AC), 30 kA (500 V AC), 10 kA (690 V AC), 100 kA (250 V DC)