The B3SL-1005P is a momentary action push switch from Omron. It is a 4-pole switch that is suitable for low-voltage applications, such as doorbells and control panels. This push switch has a lighted, recessed button with a durability rating of up to 1,000,000 cycles. It has a wide range of terminals, including: PC terminals, solder terminals, M4 screws, and knurled nuts. The rated operation voltage is 28V, with a power rating of 0.5VA. The switch operates within a temperature range of -20 to +60 degrees Celsius and has an IP65 rating for dust and water resistance.