OMRON Lighted Pushbutton Switch A3PJ-90E21-24EOR
Contact type: Standard load (250 VAC, 3 A; 30 VDC, 4 A). Operation: Alternate operation (Self-holding). Case color: Light gray. Output: SPDT. Lighting: LED; 5 VDC. Pushbutton color symbol: R.O.G.