Industrial Electrical Switch Contact Block
Electrical Component · Likely a major industrial manufacturer such as Allen-Bradley (Rockwell Automation), Schneider Electric, or Eaton.
Pattern: Standard industrial push-button contact block assembly
Type
Electrical Component
Maker
Likely a major industrial manufacturer such as Allen-Bradley (Rockwell Automation), Schneider Electric, or Eaton.
Material
Primarily non-precious metals: steel or aluminum housing with potential silver-cadmium oxide or silver-nickel electrical contact points internally; plastic/polymer insulators.
Dimensions
Approximately 3cm x 2cm x 2cm; weight roughly 20-40 grams.
Description
This is not a decorative silver item, but a piece of industrial hardware. It is a contact block used behind an industrial push-button or E-stop switch to open or close an electrical circuit.
Key Features
Central rivet assembly, non-conductive plastic housing, and metal terminal casing.
Material & Composition
Primarily non-precious metals: steel or aluminum housing with potential silver-cadmium oxide or silver-nickel electrical contact points internally; plastic/polymer insulators.
Finish & Decoration
Industrial zinc or chrome plating; utility-focused matte finish with no decorative features.
Hallmarks & Stamps
No silversmith hallmarks; typically features industrial ratings like UL, CE, or voltage/amperage stamps (not visible in photo).
Construction Details
Machine-stamped metal casing held together by a central rivet, featuring mounting tabs for snap-fit installation.
Functional Features
Spring-loaded internal mechanism designed for electrical continuity; side tabs for mounting to a switch operator.
Handle & Grip Details
None; designed for internal panel mounting rather than manual gripping.
Craftsmanship Details
Mass-produced precision engineered industrial part with emphasis on durability and electrical safety over aesthetics.
Authentication Indicators
None applicable for silver; authenticated by industrial part numbers if visible.
Origin & Manufacturing
Global industrial manufacturing; likely USA, Germany, or China depending on the machinery it belongs to.
Era & Period
Modern Industrial Era (late 20th to 21st century).
Age Estimate
Modern era, likely produced within the last 10-20 years based on mounting style and mechanical condition.
Cultural Significance
Represents the automation and safety controls of modern manufacturing and labor.
Condition Notes
Significantly worn and dirty; shows signs of heavy industrial use, grease accumulation, and surface oxidation.
Value Estimate
$5 to $25 USD as a replacement part in new condition; negligible value as scrap or as an antique.
Care & Maintenance
Clean with electrical contact cleaner; do not polish with silver products. Replace if contacts are pitted or worn.
Similar Pieces
Standard NO (Normally Open) or NC (Normally Closed) contact blocks from various industrial suppliers.
Interesting Facts
While not an antique, these blocks often contain minute amounts of silver in the contact pads due to its high conductivity.