An electromagnetic relay includes a base, a fixed terminal, a fixed contact, a movable piece, a movable contact, a magnet, a base holder, and a case. The fixed terminal is supported by the base. The fixed contact is connected to the fixed terminal. The movable piece is supported by the base. The movable contact is connected to the movable piece and faces the fixed contact. The magnet exerts a Lorentz force on an arc generated between the fixed contact and the movable contact. The base holder is a separate body from the base. The base holder is attached to the base. The base holder is disposed in at least a direction in which the Lorentz force acts with respect to the base. The case is attached to the base holder.

A switch includes a set of contacts and a drive mechanism opening and closing the set of contacts. The drive mechanism is located beside the set of contacts in a direction perpendicular to an opening direction in which the contacts are movable to at least one of open and close.

Examples of a relay are described, with which the characteristics of the relay such as the operating voltage can be prevented from changing, even when impact is applied to the relay. The relay has an electromagnet, an armature which pivots about a pivot axis by excitation of the electromagnet, a pressing member attached to a tip of the armature, and a terminal which is pressed by the pressing member, wherein the armature comprises a plate-like insertion part which extends in a direction parallel to the pivot axis, and a guide groove provided in the insertion part and which extends in a direction parallel to the pivot axis, and the pressing member comprises an enclosure which is open on one end, and a part of the enclosure is inserted into the guide groove.

Provided is a relay, with which an insulation distance can be maintained while preventing an increase in size of the relay. The relay has a coil, an iron core, an armature which moves by excitation of the coil, a contact terminal which displaces in accordance with the movement of the armature, a pressing member which is attached to the armature and which presses the contact terminal, and a base block having a wall arranged between a first area in which the coil and the iron core are arranged, and a second area in which the contact terminal and the pressing member are arranged, wherein the armature comprises a first portion arranged in the first area and a second portion extending from the first portion and arranged in the second area, and the pressing member is affixed to the second portion.

A relay includes an electromagnet, a plurality of springs having contacts which open and close in accordance with operation of the electromagnet and terminals, and a base which supports the springs, wherein at least one of the plurality of springs has a locked part which is locked on the base using resilience of the spring, and the base has a lock part which locks the locked part.

A relay for assembling in terminal blocks includes an electromagnetic drive arrangement including an armature, an armature bearing spring, and a yoke. The armature is at least partially spaced from the yoke, is movably mounted, and is reduces the distance between the yoke and the armature under an effect of an electromagnetic force. The armature bearing spring applies a spring force counteracting the electromagnetic force. The yoke interacts electromagnetically with the armature to apply the electromagnetic force. A contact spring has a first contact surface and a contact arm, and the contact arm is spaced from the first contact surface and comes into contact with the first contact surface via a pressure force acting to establish an electrical connection between the first contact surface and the contact arm. An insulating element electrically isolates the armature from the contact arm and actuates the contact arm to produce the pressure force.

A relay includes an electromagnet, a plurality of springs having contacts which open and close in accordance with operation of the electromagnet and terminals, and a base which supports the springs, wherein at least one of the plurality of springs has a locked part which is locked on the base using resilience of the spring, and the base has a lock part which locks the locked part.

An electromagnetic double-armature relay with an excitation coil comprises a first yoke and a second yoke, which are arranged on the excitation coil. The first leg of the first yoke serves as a support for a first armature and the first leg of the second yoke serves as a support for a second armature. The double-armature relay has a first comb which cooperates with the first armature, and a second comb cooperates with the second armature. In addition, the double-armature relay has at least two contact bridges, each of which is detachably arranged with a first end in the first comb and the second end in the second comb and comprises two contact rivets oriented in opposite directions, and fixed contacts which are arranged opposite the contact rivets of the contact bridge. The arrangement of the two yokes and armatures are such that the two combs perform opposing translational movements.

An electromagnetic relay includes a base, an electromagnet disposed on the base, an armature unit having a magnetically attractive member magnetically attractable by the electromagnet, a movable terminal unit mounted on the armature unit and including a first terminal member and a first contact, and a stationary terminal member mounted on the base. The first terminal member is a two-piece structure composed of a spring plate and a first leg. A ratio of the thickness of the first leg to the thickness of the spring plate ranges from 2 to 4. When the electromagnet is energized and de-energized, the first contact contacts and moves away from the second contact, respectively. A method of making the electromagnetic relay is also disclosed.

A relay for assembling in terminal blocks includes an electromagnetic drive arrangement including an armature, an armature bearing spring, and a yoke. The armature is at least partially spaced from the yoke, is movably mounted, and is reduces the distance between the yoke and the armature under an effect of an electromagnetic force. The armature bearing spring applies a spring force counteracting the electromagnetic force. The yoke interacts electromagnetically with the armature to apply the electromagnetic force. A contact spring has a first contact surface and a contact arm, and the contact arm is spaced from the first contact surface and comes into contact with the first contact surface via a pressure force acting to establish an electrical connection between the first contact surface and the contact arm. An insulating element electrically isolates the armature from the contact arm and actuates the contact arm to produce the pressure force.