A double breaker switch comprises a contact bridge connected to an actuator at a connection point, a first fixed contact, and a second fixed contact. The contact bridge includes a first bridge contact connected to the connection point by a first arm and a second bridge contact connected to the connection point by a second arm. The second arm is longer than the first arm. The first bridge contact electrically connects with the first fixed contact at a first contact point in a closed state of the double breaker switch. The second bridge contact electrically connects with the second fixed contact at a second contact point and a third contact point in the closed state of the double breaker switch.

Various embodiments disclosed relate to an alloy. The alloy includes elemental silver. The alloy further includes a metal oxide phase in the elemental silver. The metal oxide phase includes a wetting agent layer that coats the metal oxide phase.

Various embodiments disclosed relate to an alloy. The alloy includes elemental silver. The alloy further includes a metal oxide phase in the elemental silver. The metal oxide phase includes a wetting agent layer that coats the metal oxide phase.

The present invention is a clad material for an electric contact, including a base material composed of a Cu-based, precipitation-type age-hardening material, and a contact material composed of an Ag alloy bonded to the base material. On a bonded interface between the contact material and the base material, a width of a diffusion region including Ag and Cu is 2.0 m or shorter. The clad material is produced by bonding each other the contact material and the base material having undergone solutionizing and age-hardening beforehand, suppressing the diffusion region from expanding after bonding. The present invention is capable of providing an electric contact, which achieves higher conductivity, without sacrificing property of the Cu-based, precipitation-type age-hardening material.

The present invention is a clad material for an electric contact, including a base material composed of a Cu-based, precipitation-type age-hardening material, and a contact material composed of an Ag alloy bonded to the base material. On a bonded interface between the contact material and the base material, a width of a diffusion region including Ag and Cu is 2.0 m or shorter. The clad material is produced by bonding each other the contact material and the base material having undergone solutionizing and age-hardening beforehand, suppressing the diffusion region from expanding after bonding. The present invention is capable of providing an electric contact, which achieves higher conductivity, without sacrificing property of the Cu-based, precipitation-type age-hardening material.

An electrical contact having a substrate of an electrically conductive non-silver material, and an electrically conductive metal-graphene composite coating directly on a surface of the substrate.

An electrical contact having a substrate of an electrically conductive non-silver material, and an electrically conductive metal-graphene composite coating directly on a surface of the substrate.

The present invention relates to an electrolyte containing suitable reducing agents for adjusting the composition of silver-palladium layers. Furthermore, these reducing agents contribute to improving the layer appearance and to increasing the luminance (L value, CIE Lab) of the deposited layers. The present invention also discloses a method for the electrolytic deposition of silver-rich silver-palladium alloys. The alloys can be deposited on conductive surfaces over a wide current density range.

In some embodiments, the effect of uniformly dispersing carbon nanotubes in the material is achieved by including Ag in the carbon nanotubes to suppress the aggregation of carbon nanotubes when the electrical contacts are prepared.

An electrical contact apparatus having low silver content and defined thickness and length geometry. The electrical contact apparatus has a contact body made of a silver-containing alloy having SC60 wt. %, and having L/T5.4, wherein L is a longest contact length dimension of the contact body, T is a maximum contact thickness dimension of the contact body, SC is the silver content in wt. %, and L/T is a contact dimension ratio. Electrical contact assemblies, circuit breaker electrical contact subassemblies, and methods of operating a circuit breaker electrical contact subassembly are disclosed, as are other aspects.