SIEMENS 3SX1731 灯泡, BA, 9S, 110-130V
The is a 2.6W Incandescent Lamp with BA9S base. This lamp is suitable for 22mm 3SB3 pushbutton units and indicator lights.
Allied Electronics:
Lamp For Use With 3SB3 Series
Newark:
# SIEMENS 3SX1731 Incandescent Lamp, 130 V, BA9s, 10mm