The B3SN-3012 is a four-pole Maintenance-free Snap-action Switch from Omron. It features a 0.5 mm-square contact gap and 30/60/125 VDC rating. The switch has a long life of 5 million operations, offering a reliable and consistent performance in a wide variety of applications. It is UL, CSA, VDE and ENEC certified and has an IP50 degree of protection. It also comes with a convenient, pre-stitched connecting cable and a variety of mounting hardware. The B3SN-3012 is a great choice for applications that require a switch that is highly reliable and cost-effective.