OMRON Lighted Pushbutton Switch A3PJ-90A21-24EGW
Contact type: Standard load (250 VAC, 3 A; 30 VDC, 4 A). Operation: Momentary operation (Self-resetting). Case color: Black. Output: SPDT. Lighting: LED; 5 VDC. Pushbutton color symbol: R.O.G.W.