Industrial Electromechanical Relay or Switch Contact Assembly
Electrical Component (Non-Silverware) · Unknown Industrial Manufacturer (e.g., General Electric, Potter & Brumfield, or Omron)
Pattern: N/A - Industrial Standard Part
Type
Electrical Component (Non-Silverware)
Maker
Unknown Industrial Manufacturer (e.g., General Electric, Potter & Brumfield, or Omron)
Material
Copper and copper-alloy (bronze/brass) with magnetic steel core; silver-colored metal is likely nickel-plated steel or tinned copper. No solid silver present.
Dimensions
Approximately 2-3 inches in length; weight estimated at 50-80 grams; comprised of a small induction coil and contact arm.
Description
This is an internal electromechanical component, specifically a solenoid-driven switch or relay assembly. It consists of a high-purity copper coil (red/brown) used to actuate a brass or copper lever system. It is not an antique silver household item, but rather a functional part from an appliance, vehicle, or industrial control.
Key Features
Insulated copper induction coil; hinged contact armature; braided copper wire for current flexibility.
Material & Composition
Copper and copper-alloy (bronze/brass) with magnetic steel core; silver-colored metal is likely nickel-plated steel or tinned copper. No solid silver present.
Finish & Decoration
Industrial utilitarian finish; induction coil has enamel/polyurethane insulation coating; metal frame is stamped and likely anti-corrosion plated.
Hallmarks & Stamps
None visible; typically would include part numbers, voltage ratings, or a CSA/UL logo stamped on the exterior casing (missing).
Construction Details
Machine-manufactured; features stamped metal frame, coiled copper wire around a bobbin, and a riveted hinged armature for switching movement.
Functional Features
Electromagnetic coil creates a magnetic field to pull the contact lever (armature) to open or close an electrical circuit.
Handle & Grip Details
N/A - This is an internal component of a machine or appliance.
Craftsmanship Details
Precision industrial stamping and machine winding; designed for durability and repetitive movement rather than aesthetic appeal.
Authentication Indicators
Lack of silver hallmarks; presence of industrial copper and machine-stamped steel; functional electrical design inconsistent with decorative silver.
Origin & Manufacturing
Likely mass-produced in a high-volume manufacturing facility in the US, Mexico, or Asia.
Era & Period
Modern Industrial / Late 20th Century Engineering.
Age Estimate
c. 1980-2010 based on the style of the enamel coil and stamped metal frame.
Cultural Significance
Represents the evolution of automated switching and the transition from manual controls to electromechanical systems in the 20th century.
Condition Notes
Poor/Dismantled. The item has been removed from its housing; shows signs of mechanical fatigue and possible heat stress on the contacts.
Value Estimate
Negligible as a collectible ($1-$5 as scrap or part); value is purely functional or as metallic scrap.
Care & Maintenance
Exercise caution; dispose of as electronic waste. Functional copper parts should not be polished like silver as it may damage electrical insulation.
Similar Pieces
Automotive starter solenoids, HVAC contactors, or circuit breaker assemblies.
Interesting Facts
While not silver, high-end electrical contacts sometimes use silver-oxide or silver-cadmium alloys for their superior conductivity and resistance to oxidation during sparking.