The 4P 750-1000V AC 63-630A 4P Load Break Switch is a device for controlling and isolating the power supply in high power systems. Working over a range of high voltages and currents, this switch is ideal for large industrial and commercial applications. The mechanism is mounted on the bottom of the cabinet, while the handle is installed on the cabinet door, which has an extension shaft that adapts to the mechanism once the door is closed. It is mainly used for starting/stopping motors, switching inductive, resistive and mixed loads. Product dimensions and weight per model: 63A: 135x140x120 mm ---- 0.41 kg.100A: 135x140x120 mm ---- 0.41 kg160A: 135x140x120 mm ---- 1.5 kg250A: 165x230x140 mm ---- 2.5 kg 400A: 234x290x185 mm ---- 4 kg630A: 250x290x185 mm ---- 4.5 kg