Description: Applying in the electric circuit of AC 50HZ 380V,DC220V electro-magnetic starter,relay,contactor,Electric control etc. 250VAC 3A SPDT NO NC Round Flat Head Momentary Push Button Switch Action Type:Momentary Contact Type:1 NO(Normally Open) + 1 NC(Normally Close) Head Type:Mushroom head. Specification: Model:LA38-11M Mount Hole Diameter : 22mm / 0.87"(7/8") Fit Panel Thickness : Max 4mm / 0.16" Working AC Frequency : 50Hz-60Hz; Ith :10A AC15 250V-3A. Overall Size:75*35mm Material:plastic+metal Color:Red/Green Package Includes: 1 Piece Momentary Flat Head Push Button Switch