• All the switches have 3 terminals, the bronze colour connects the internal light
• Panel mount diameter: 20mm
• Overall dimensions: 30 x 23mm (Height x Diameter)
• Switch Rating: 6A 250V/AC or 10A 125V/AC

How to connect? 

• Basically the "silver" pins are the contactor and the is between the centre pin and the bronze pin.
• Look the switch in the way all pins pointing down and the Bronze pin is 3rd from left to right
• The L wire goes in the middle (2nd pin)
• The N wire goes to the bronze pin
• Load L wire goes to the empty pin of the switch (1st pin, if the Bronze pin is 3rd)
• Load N wire goes to the N wire, no matter on the switch or connected somewhere else with the main N wire