The electromagnetic relay comprises an auxiliary fixed terminal that has a configuration different from that of a fixed terminal and includes an auxiliary external input/output terminal and an auxiliary external output/input terminal that can be electrically connected to the auxiliary external input/output terminal. The electromagnetic relay comprises an auxiliary movable terminal that has a configuration different from that of a movable terminal and can electrically connect the auxiliary external input/output terminal and the auxiliary external output/input terminal.

A shunt trip assembly is structured to be operatively coupled to a number of circuit breakers. The shunt trip assembly includes a housing assembly and an actuating assembly. The actuating assembly includes a limited number of components. In another embodiment, the shunt trip assembly housing assembly is a substantially sealed housing assembly. In another embodiment, the shunt trip assembly housing assembly includes a single mounting panel.

An electromagnetic relay includes a fixed contact, a movable contact piece, a movable contact, a contact case, a drive device, and an elastic member. The movable contact is disposed to face the fixed contact. The movable contact piece is connected to the movable contact. The movable contact piece is configured to move in an opening direction and a closing direction. The contact case houses the fixed contact, the movable contact, and the movable contact piece. The drive device includes a coil. The coil generates an electromagnetic force that moves the movable contact piece. The elastic member is disposed between the drive device and the contact case. The elastic member seals between the drive device and the contact case.

An electromagnetic relay includes a fixed contact, a movable contact piece, a movable contact, a contact case, a drive device, and an elastic member. The movable contact is disposed to face the fixed contact. The movable contact piece is connected to the movable contact. The movable contact piece is configured to move in an opening direction and a closing direction. The contact case houses the fixed contact, the movable contact, and the movable contact piece. The drive device includes a coil. The coil generates an electromagnetic force that moves the movable contact piece. The elastic member is disposed between the drive device and the contact case. The elastic member seals between the drive device and the contact case.

A circuit for a circuit interrupter is provided. The circuit may in include a first SCR configured to receive a first trigger signal at a gate of the first SCR, a second SCR configured to receive a second trigger signal at a gate of the second SCR, and a third SCR configured to receive a third trigger signal at a gate of the third SCR. A cathode of the first SCR may be connected to an anode of the third SCR. A cathode of the second SCR and a cathode of the third SCR may be connected to a ground. Methods of operating a circuit interrupter and a circuit are also provided.

A circuit for a circuit interrupter is provided. The circuit may in include a first SCR configured to receive a first trigger signal at a gate of the first SCR, a second SCR configured to receive a second trigger signal at a gate of the second SCR, and a third SCR configured to receive a third trigger signal at a gate of the third SCR. A cathode of the first SCR may be connected to an anode of the third SCR. A cathode of the second SCR and a cathode of the third SCR may be connected to a ground. Methods of operating a circuit interrupter and a circuit are also provided.

An electromagnetic relay and a terminal block each include a voltage converter. The voltage converter is located adjacent to a coil and electrically connected to first coil terminals and second coil terminals. The voltage converter converts a power supply voltage input through one of the first coil terminals to a set value different from the input power supply voltage and outputs the power supply voltage to an electromagnet through one of the second coil terminals.

A magnetic latching relay includes a base, a magnetic circuit portion, a pushing card and a contact portion; the base is provided with a first blocking wall to divide the base into an upper cavity and a lower cavity, the magnetic circuit portion and the contact portion are installed in the upper cavity and the lower cavity respectively; an iron core, two yokes and a magnetic steel of the magnetic circuit portion are formed an E-shaped magnetic conductive structure with a 90 degrees side turn; the middle position of an armature is rotatably supported above the magnetic steel, two ends of the armature respectively correspond to the tops of the two yokes; an upper end of the pushing card is connected to one end of the armature, and a lower end of the pushing card is connected to a free end of a movable spring of the contact portion.

A magnetic latching relay includes a base, a magnetic circuit portion, a pushing card and a contact portion; the base is provided with a first blocking wall to divide the base into an upper cavity and a lower cavity, the magnetic circuit portion and the contact portion are installed in the upper cavity and the lower cavity respectively; an iron core, two yokes and a magnetic steel of the magnetic circuit portion are formed an E-shaped magnetic conductive structure with a 90 degrees side turn; the middle position of an armature is rotatably supported above the magnetic steel, two ends of the armature respectively correspond to the tops of the two yokes; an upper end of the pushing card is connected to one end of the armature, and a lower end of the pushing card is connected to a free end of a movable spring of the contact portion.

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.