A high-voltage DC relay of the present disclosure, including a housing, two main lead-out terminals, a main movable piece and a pushing rod component; and the relay further including two auxiliary lead-out terminals, an auxiliary movable spring, and an insulating partition plate, the two auxiliary lead-out terminals are respectively installed on the same side of a connecting line of the two main lead-out terminals corresponding to the top of the housing, and bottoms of the two auxiliary lead-out terminals are respectively located in the housing; the auxiliary movable spring is insulated from the movable assembly and fixed to the movable assembly through the insulating partition plate, so as to follow a movement of the movable assembly to achieve bridging with the two auxiliary lead-out terminals.

An electromagnetic relay includes a housing, a fixed contact, a fixed terminal, and a movable contact. The fixed contact and the movable contact are disposed in the housing. The movable contact faces the fixed contact. The fixed contact is connected to the fixed terminal. The fixed terminal includes a contact support portion, a first arc guide, and a second arc guide. The contact support portion supports the fixed contact. The first arc guide extends from the contact support portion. The first arc guide includes a tip that projects outward of the housing. The second arc guide extends from the contact support portion. The second arc guide includes a tip that projects outward of the housing. The first arc guide and the second arc guide are disposed in the housing to extend the arc generated at the fixed contact.

An electromagnetic relay includes a housing, a fixed contact, a fixed terminal, and a movable contact. The fixed contact and the movable contact are disposed in the housing. The movable contact faces the fixed contact. The fixed contact is connected to the fixed terminal. The fixed terminal includes a contact support portion, a first arc guide, and a second arc guide. The contact support portion supports the fixed contact. The first arc guide extends from the contact support portion. The first arc guide includes a tip that projects outward of the housing. The second arc guide extends from the contact support portion. The second arc guide includes a tip that projects outward of the housing. The first arc guide and the second arc guide are disposed in the housing to extend the arc generated at the fixed contact.

A high-voltage DC relay of the present disclosure, including a housing, two main lead-out terminals, a main movable piece and a pushing rod component; and the relay further including two auxiliary lead-out terminals, an auxiliary movable spring, and an insulating partition plate, the insulating partition plate is disposed in a vertical plane on a side of the main movable piece, the auxiliary movable spring is on a side of the insulating partition plate opposite the main movable piece, and is disposed along the vertical direction, the insulating partition plate is configured to completely isolate the main movable piece and the auxiliary movable spring; the auxiliary movable spring is insulated from the movable assembly and fixed to the movable assembly through the insulating partition plate, so as to follow a movement of the movable assembly to achieve bridging with the two auxiliary lead-out terminals.

A high-voltage DC relay of the present disclosure, including a housing, two main lead-out terminals, a main movable piece and a pushing rod component; and the relay further including two auxiliary lead-out terminals, an auxiliary movable spring, and an insulating partition plate, the insulating partition plate is disposed in a vertical plane on a side of the main movable piece, the auxiliary movable spring is on a side of the insulating partition plate opposite the main movable piece, and is disposed along the vertical direction, the insulating partition plate is configured to completely isolate the main movable piece and the auxiliary movable spring; the auxiliary movable spring is insulated from the movable assembly and fixed to the movable assembly through the insulating partition plate, so as to follow a movement of the movable assembly to achieve bridging with the two auxiliary lead-out terminals.

A modular contactor. The modular contactor includes a driving module (1), an intermediate connection module (2), a breaking module (3), an upper application interface module (4), and a lower application interface module (5); the driving module (1) is detachably connected to a first side of the intermediate connection module (2); the breaking module (3) is detachably connected to a second side of the intermediate connection module (2) ; the upper application interface module (4) is detachably connected to the top of the breaking module (3) so as to be electrically connected to upper static contacts of the multiple breaking units; the lower application interface module (5) is detachably connected to the bottom of the breaking module (3) so as to be electrically connected to lower static contacts of the multiple breaking units.

A modular contactor. The modular contactor includes a driving module (1), an intermediate connection module (2), a breaking module (3), an upper application interface module (4), and a lower application interface module (5); the driving module (1) is detachably connected to a first side of the intermediate connection module (2); the breaking module (3) is detachably connected to a second side of the intermediate connection module (2) ; the upper application interface module (4) is detachably connected to the top of the breaking module (3) so as to be electrically connected to upper static contacts of the multiple breaking units; the lower application interface module (5) is detachably connected to the bottom of the breaking module (3) so as to be electrically connected to lower static contacts of the multiple breaking units.

An electrical switching element includes a housing, an armature moved by a coil arrangement, a contact arrangement switchable by the armature into at least two switching statuses, and a magnetic field sensor outputting a magnetic field-dependent switching signal representing the switching statuses. The armature, the contact arrangement, and the magnetic field sensor are arranged in the housing. The armature is arranged between the contact arrangement and the magnetic field sensor.

An electrical switching element includes a housing, an armature moved by a coil arrangement, a contact arrangement switchable by the armature into at least two switching statuses, and a magnetic field sensor outputting a magnetic field-dependent switching signal representing the switching statuses. The armature, the contact arrangement, and the magnetic field sensor are arranged in the housing. The armature is arranged between the contact arrangement and the magnetic field sensor.

Testable sealed and/or self-diagnosing electromagnetic or solid-state relays simplify troubleshooting of electrical circuits. The testable relay comprises a relay housing with terminals adapted to connect to a circuit and an opposing top wall with testable terminals formed as projections being flush with or extending from the top wall and being exposed for testing the relay by applying a multimeter device. A self-diagnosing relay comprises a relay housing with terminals adapted to connect to a circuit, and at least two light-emitting diodes (LEDs). One of the LED indicates the relay is energized, and another LED light is a diagnostic LED and indicates if the relay is damaged.