Photovoltaic inverter and rotary switch

A rotary switch, comprising:

• a switch body (131), wherein the switch body (131) comprises an insulation housing (1315) and a plurality of pins, the plurality of pins are located in an accommodating cavity enclosed by the insulation housing (1315), the plurality of pins extend out of the insulation housing (1315), and ends of the plurality of pins extending out of the insulation housing (1315) are configured to connect to a circuit board (120) of a photovoltaic inverter;
• and
• the rotary switch (130) is a multipole switch, each pole of the rotary switch (130) comprises two pins, the insulation housing (1315) is provided with a groove between two pins that are located on a same side and that are of two adjacent poles, and an opening of the groove is located on a side, on which the plurality of pins are located, of the insulation housing (1315), or the insulation housing (1315) comprises a boss, the boss is located on a side that is of the insulation housing (1315) and that is close to the circuit board (120), and the boss is located between the two pins that are located on the same side and that are of the two adjacent poles.