Electromagnetic relay

Abstract

In an electromagnetic relay (1), a printed circuit board (3) has first and third transmission lines (24A, 24B), second and fourth transmission lines (25A, 25B), and a first ground plate (23). First and second movable contact pieces (6A, 6B) are individually connected to the first transmission line (24A) and the third transmission line (24B). The first and second movable contact pieces (6A, 6B) move between a connection position and a cut-off position. A shield plate (7) extends from the first ground plate (23) above the second and fourth transmission lines (25A, 25B). An insulating layer (107) is provided between the first ground plate (23) and the first and second movable contact pieces (6A, 6B).