Siemens 5ST3 731 Pin Busbar, 10mm², 63A Rated, 1-Phase, 57-Pin, 1016mm Length Model # : 5ST3 731. Length: 1016mm. Rated Current: 63A. Cross Section: 10mm². Number of Pins: 57. Office Hours The Original Manufacturer's warranty does not apply. This is a surplus item. byJuly 4, 2026