Momentary On-Off Rocker Switches. High quality 2 position off-(on) rectangular rocker switch. These switches are ideal for many applications where a momentary On position is required.  These switches are permanently Off until pressed and are then On while the switch is held down.  As soon as the switch is released then it springs back to the Off position. OVERALL SIZE: 30.5mm x 13.5mm x 31mm(L x W x H) PANEL HOLE SIZE: 29mm x 10.5mm PINS: SPST 2 Pin. RATING: 15A 250VAC TYPE: KCD3-111 MOMENTARY I am a fully qualified TV engineer with over 30 years experience, so please contact me if you have any questions and I will get straight back to you. Thanks for looking.