Abstract: An electromagnetic contactor including: an arc-extinguishing chamber in which a contact portion is disposed; a case having an arc-extinguishing chamber housing portion in which the arc-extinguishing chamber is housed; and an arc-extinguishing cover mounted on the case and configured to cover the arc-extinguishing chamber housing portion, wherein at least one of the case and the arc-extinguishing cover has a first engaging portion and a second engaging portion, the other has a third engaging portion configured to engage with the first engaging portion and the second engaging portion, and the arc-extinguishing cover is held to the case in either a first state in which the first engaging portion and the third engaging portion are engaged with each other or a second state in which the second engaging portion is engaged with the third engaging portion.

Abstract: An electromagnetic contactor 1 includes a case including an arc extinguishing chamber, an arc extinguishing cover attached to the case and covering the arc extinguishing chamber, and terminal covers arranged on the arc extinguishing cover and attached to the case. The case is formed with a first engagement portion, and the terminal covers are formed with a second engagement portion that is engaged with the first engagement portion to hold the terminal covers on the case. Then, the terminal covers are held on the case in either a first state where there is a gap between the first and second engagement portions or a second state where the terminal covers move in directions away from the arc extinguishing cover and the first and second engagement portions are engaged.

Abstract: An electromagnetic contactor including: an arc-extinguishing chamber in which a contact portion is disposed; a case having an arc-extinguishing chamber housing portion in which the arc-extinguishing chamber is housed; and an arc-extinguishing cover mounted on the case and configured to cover the arc-extinguishing chamber housing portion, wherein at least one of the case and the arc-extinguishing cover has a first engaging portion and a second engaging portion, the other has a third engaging portion configured to engage with the first engaging portion and the second engaging portion, and the arc-extinguishing cover is held to the case in either a first state in which the first engaging portion and the third engaging portion are engaged with each other or a second state in which the second engaging portion is engaged with the third engaging portion.

Abstract: An electromagnetic device (17) comprises stationary cores (17a, 17b), a coil unit (17g) including spools (17e, 17f) with an electromagnetic coil (17c, 17d) wound around respective outer peripheries of the spools, a yoke (17j) fixed to one end of the stationary cores inserted through a core insertion hole (17h, 17i) of the spool, magnetic pole plates (17k, 17m) coupled to the other end of the stationary cores inserted through the core insertion hole of the spool, and a movable core (17n) disposed opposite the magnetic pole plate. The coil unit is provided with first coupling portions (30 to 33, 34 to 37, 46, 47, 38, 39) configured to detachably couple the yoke and the magnetic pole plate with the coil unit.