Electromagnetic contactor

An electromagnetic contactor comprising:

• a contact accommodating portion configured to accommodate a contact, and to be hermetically filled with arc-extinguishing gas;
• an electromagnet configured to open and close the contact by using DC excitation of a coil;
• a case configured to accommodate the contact accommodating portion and the electromagnet;
• an external coil terminal disposed in the case beside the electromagnet;
• and
• a substrate accommodated in the case, configured to have a rectifier circuit whose input side is connected to the external coil terminal and whose output side is connected to the coil to output a DC after converting an input AC into the DC,
• wherein an inner surface of the case has a groove between the electromagnet and the external coil terminal,
• wherein the substrate is held by being inserted into the groove,
• wherein the groove includes a pair of grooves extending in a height direction formed in each of facing side walls within the inner surface of the case, and
• wherein the substrate is held by both end edges being inserted into the pair of grooves.

An electromagnetic contactor comprising:

• a contact accommodating portion configured to accommodate a contact, and to be hermetically filled with arc-extinguishing gas;
• an electromagnet configured to open and close the contact by using DC excitation of a coil;
• a case configured to accommodate the contact accommodating portion and the electromagnet;
• an external coil terminal disposed in the case beside the electromagnet;
• a substrate accommodated in the case, configured to have a rectifier circuit whose input side is connected to the external coil terminal and whose output side is connected to the coil to output a DC after converting an input AC into the DC;
• and
• an electric cable configured to connect the input side of the substrate and the external coil terminal to each other,
• wherein an inner surface of the case has a groove between the electromagnet and the external coil terminal,
• wherein the substrate is held by being inserted into the groove,
• wherein the inner surface of the case has a recess into which the electric cable is fittable, between the groove and the external coil terminal, and
• wherein the electric cable is held by being fitted to the recess.

An electromagnetic contactor comprising:

• a contact accommodating portion configured to accommodate a contact, and to be hermetically filled with arc-extinguishing gas;
• an electromagnet configured to open and close the contact by using DC excitation of a coil;
• a case configured to accommodate the contact accommodating portion and the electromagnet;
• an external coil terminal disposed in the case beside the electromagnet;
• and
• a substrate accommodated in the case, configured to have a rectifier circuit whose input side is connected to the external coil terminal and whose output side is connected to the coil to output a DC after converting an input AC into the DC;
• wherein an inner surface of the case has a groove between the electromagnet and the external coil terminal,
• wherein the substrate is held by being inserted into the groove,
• wherein the case includes a lower case and an upper case which are separable in a height direction,
• wherein the groove is formed in the lower case, and
• wherein an inner side of the upper case has a claw portion which pushes the substrate from above.