Alps Alpine 20 Pulse Mechanical Rotary Encoder Flat Shaft (Not Indexed), Through Hole

Output signal, channel A leads channel B by 60° ±30° with clockwise rotation
15 pulse - 30 detent
Snap-in PCB and panel mountable
Horizontal and vertical mount options
Long life, high reliability
End slotted metal shaft and Flatted shaft types
Rotational life 15000 cycles
Rated at 10mA 5Vdc
Insulation resistance 300 Vdc 10MR min.
Withstand voltage 300 Vac

mounting nut and washer