Compare the plug shapes, voltage and frequency in Saint Kitts and Nevis and Switzerland, and find out which adapter you need before you travel.
Adapter required
Yes — coming from Saint Kitts and Nevis, you will need a travel adapter for Switzerland. Saint Kitts and Nevis uses Type A/Type B/Type G plugs, and Switzerland uses Type C/Type J, so the pin shapes will not fit any wall socket. The mains frequency is also different (60 Hz vs 50 Hz). This rarely matters for electronics but can affect motor-driven devices like clocks and shavers.
Saint Kitts and Nevis (home)
Switzerland (destination)
Electrical specifications in Switzerland
More about plugs in Switzerland
In Switzerland, the standard power plug is Type C and Type J. The country runs on 230 volts at 50 Hz. That means wall sockets in Switzerland can be one of 2 different shapes — Type C, Type J, and your plug needs to physically match the socket to fit.
Full Switzerland plug guide