The B3F4055 is a single-pole single-throw Tactile Switch with standard, NO contact type, projected plunger type. Silver plated contacts without ground terminal. 100MΩ Insulation resistance 500V Dielectric strength IEC IP00 Protection 100000 Operations minimum life Operating force is 0.98N, 1.27N, 1.47N, 1.76N, 2.55N, 4.9N based on ordering SPST-NO contact configuration Maximum switching capacity of 50mA at 24VDC Type B32 key tops are available only for projected plunger models Applications Industrial, Power Management, Automation & Process Control