Section 402. Incompatible Offices.--(a) No elected county officer shall at the same time serve as a member of the legislative body of any city, borough, town or township of any class, nor as school director of any school district, nor as a member of any board of health.
(b) No member of Congress from this State nor any person holding or exercising any office or appointment of trust or profit under the United States shall at the same time hold or exercise any county office in this State to which a salary, fee or perquisites are attached.