The invention relates to a surge protection device with connection elements, an overvoltage protection device (SE1), two contact elements (K1, K2), a slide (AS), a connection plate (B) and a force accumulator (F). The two contact elements (K1, K2) and the overvoltage protection device (SE1) are encased with an electrically nonconducting material on the surface. The electrically nonconducting material leaves open a connection area (A) formed on the second contact element (K2). In a first state, the connection plate (B) is connected to the connection area (A). The slide (AS) is arranged such that it can slide on a surface of the electrically nonconducting material under the action of the force when the thermally softenable contact means softens in a second state, wherein the slide (AS) is displaced between the connection plate (B) and the connection area (A). The electrically nonconducting material is assigned a further function.

A cable comprises a power conductor, a data conductor and a first PTC device. The power conductor is configured to transmit electrical power between a source and a sink. The data conductor is configured to transmit data between the source and the sink. The first PTC device is coupled to the data conductor and its resistance increases drastically to decrease current flowing through the data conductor if a temperature of the first PTC device exceeds a first trip temperature. The first trip temperature is 55-80 C. The resistance of the PTC device is larger than 20k at 85 C. and larger than 80k at 100 C. A current flowing through the data conductor does not exceed 20 mA.

There is provided a composite plating material and a related technique thereof, the composite plating material including: a base material, and a composite plating layer on the base material, the composite plating layer comprising a composite material containing carbon particles and Sb in an Ag layer, with a carbon content of 6.0 mass % or more and a Sb content of 0.5 mass % or more.

A safety device for emergency shut-down of an electric instantaneous water heater. The safety device includes a contact and a counter contact, which are set up to conduct the current for supplying the instantaneous water heater in a contacted state and to interrupt the power supply of the instantaneous water heater in an open state. Further, the safety device includes a mounting device for mounting the counter contact on a tie rod, wherein the tie rod is set up to release the mounting device and the counter contact 4 from the contact to interrupt a power supply of the instantaneous water heater. The contact of the safety device is implemented as a contact rivet which is integrated directly into a circuit board.

In a contact member, a mesh-like contact including one or more layers of a metal other than a noble metal is embedded in such a manner as to be exposed from one of the surfaces of a rubbery elastic body. The contact member includes a highly conductive metal coat layer only in the regions of the mesh-like contact which are exposed from the rubbery elastic body, the coat layer having conductivity higher than that of the metal on the outermost surfaces of the mesh-like contact.

A surface layer including a base material made of a conductor and dispersed particles dispersed in the base material is formed on a surface of a fixed contact, and the dispersed particles each include a base particle that is metal oxide and a coating layer formed on an outer surface of the base particle.

A method for producing an electrical contact includes a step of preparing an electrical contact material including a layer that contains a carbon material on a base material that contains a metallic material having resistivity of 1.5910.sup.8 m to 9.0010.sup.7 m; and a step of processing the electrical contact material obtained to produce an electrical contact, wherein the carbon material is a graphene monolayer or a graphene laminate in which a plurality of the graphene monolayers is laminated, the step of preparing an electrical contact material includes a step of laminating a carbon material layer in which the layer that contains the carbon material is laminated on the base material by microwave surface-wave plasma CVD method or thermal CVD method, and the step of laminating a carbon material layer includes supplying a mixed gas including a source gas that contains carbon and hydrogen gas.

A method for producing an electrical contact includes a step of preparing an electrical contact material including a layer that contains a carbon material on a base material that contains a metallic material having resistivity of 1.5910.sup.8 m to 9.0010.sup.7 m; and a step of processing the electrical contact material obtained to produce an electrical contact, wherein the carbon material is a graphene monolayer or a graphene laminate in which a plurality of the graphene monolayers is laminated, the step of preparing an electrical contact material includes a step of laminating a carbon material layer in which the layer that contains the carbon material is laminated on the base material by microwave surface-wave plasma CVD method or thermal CVD method, and the step of laminating a carbon material layer includes supplying a mixed gas including a source gas that contains carbon and hydrogen gas.

An electrical contact includes: a first contact surface; a second contact surface; and a coating dispersed on at least one of the first or second contact surfaces, where the coating includes the cured product of a telechelic polypropylene glycol-polyethylene glycol multi-block polymer.

An electrical contact includes: a first contact surface; a second contact surface; and a coating dispersed on at least one of the first or second contact surfaces, where the coating includes the cured product of a telechelic polypropylene glycol-polyethylene glycol multi-block polymer.