Industrial Silver-Cadmium Electrical Contact with P231 Part Number
Industrial Component (Electrical Contacts) · Unknown Electrical Component Manufacturer; likely an industrial supplier for automotive or heavy machinery power systems.
Pattern: Non-decorative; Industrial Part Number P231
Type
Industrial Component (Electrical Contacts)
Maker
Unknown Electrical Component Manufacturer; likely an industrial supplier for automotive or heavy machinery power systems.
Material
Silver-cadmium oxide or silver-nickel contact tips on a copper shunt and brass/steel alloy carrier. These are not sterling silver but industrial alloys designed for conductivity and arc resistance.
Dimensions
Small scale (approx. 2-4 cm in length); negligible silver weight as the silver is usually restricted to the small contact pad at the tip.
Description
Functional electromechanical contact assembly. This is a technical component used in high-current switching applications where silver's conductivity is required to ensure low-resistance connections under heavy load.
Key Features
Copper braided shunt for flexibility; silver-alloy contact pad for arc suppression; P231 alphanumeric identification stamp.
Material & Composition
Silver-cadmium oxide or silver-nickel contact tips on a copper shunt and brass/steel alloy carrier. These are not sterling silver but industrial alloys designed for conductivity and arc resistance.
Finish & Decoration
Industrial/functional finish. Features heat-discolored copper braiding and stamped alphanumeric identifiers; no decorative intent.
Hallmarks & Stamps
Part number stamp 'P231'. No silver purity hallmarks (like .925 or Lion Passant) are present, as this is an industrial component, not decorative silver.
Construction Details
Machine-stamped metal strip, braze-welded contact tips, and crimped/soldered copper braided wire for flexibility and conductivity.
Functional Features
Designed for repetitive mechanical switching; high-conductivity silver tips prevent welding of contacts during electrical arcing.
Handle & Grip Details
N/A; Item is a mechanical part. Features a bent brass/alloy terminal for mounting inside a switch or relay housing.
Craftsmanship Details
Precision industrial engineering; the brazing of the contact to the carrier must be flawless to prevent overheating during operation.
Authentication Indicators
The 'P231' stamp is a standard industrial part number format. The lack of purity marks confirms this is industrial scrap rather than fine silver or jewelry.
Origin & Manufacturing
Likely Japan, USA, or Germany; mass-produced in an industrial fabrication plant utilizing automated brazing and stamping.
Era & Period
Modern Industrial Era (late 20th century to present); typical of electromechanical relay or motor starter technology.
Age Estimate
Circa 1980 - 2010 based on the wear, stamping style, and assembly of the copper braid.
Cultural Significance
Represents the 'invisible' use of precious metals in the infrastructure of modern life, from car ignitions to elevator controls.
Condition Notes
Poor/Scrap condition. Showing heavy wear, carbonization from arcing, and mechanical disassembly. It is currently in a state of 'scrap' rather than a functional or collectible state.
Value Estimate
Scrap value only. The silver content is minimal (fractions of a gram). Usually sold by weight in bulk to specialized precious metal refiners.
Care & Maintenance
Not applicable for preservation. If intended for scrap recovery, do not inhale dust if filing, as industrial contacts often contain toxic cadmium.
Similar Pieces
Relay switches, circuit breaker contacts, motor starter fingers. Unlike decorative silver, these are valued solely for their reclaimable metal content.
Interesting Facts
Industrial silver is one of the largest global uses for the metal. Silver-cadmium oxide contacts were preferred for decades because they 'self-clean' during the arc, though they are being phased out for RoHS-compliant materials.