Contact key
$ 10.11 Original price was: $ 10.11.$ 9.08Current price is: $ 9.08.
Product Description
The Contact Key is a fundamental switching device used in electrical circuits to manually open or close the flow of current. Commonly used in physics laboratories for demonstration and experimentation with circuits, it enables controlled activation of current for brief or sustained durations. Made from durable, conductive metals with insulating bases, Contact Keys are essential components in circuit testing, timing devices, and low-voltage experimental setups.
Contact key
Primary Uses
- Laboratory Applications
- Used in physics labs to manually control the flow of current in electrical circuit experiments.
- Integrated in electromagnetism demonstrations to activate coils, relays, and other devices.
- Utilized in timing circuits and pendulum-triggered experiments.
- Supports experimental setups in voltage-current relationship studies.
- Industrial Applications
- Employed in small-scale industrial test benches for circuit control.
- Used in equipment requiring momentary switching or intermittent signal activation.
- Applied in quality testing of low-voltage electrical components.
Secondary Uses
- Other Industrial Uses
- Integrated into educational lab training kits for vocational and technical training.
Used in prototype and R&D environments for hands-on switching in control circuits.
1.Basic Identification Attributes
- Product Type: Manual Electrical Switch
- Material: Conductive metal contacts with insulated base
- Function: Manual control of current in a circuit
2.Physical & Chemical Properties
- Construction: Spring-loaded or lever-type switch
- Contact Material: Copper or brass
- Base Material: Bakelite or other insulating polymer
- Voltage Handling: Typically low-voltage applications (below 24V)
- Durability: Designed for repeated use in experimental setups
3.Safety & Hazard Attributes
- Electrical Risk: Low, suitable for low-voltage circuits
- Mechanical Risk: Minimal; use under supervision in high-energy setups
- Toxicity: Non-toxic materials used
- Allergen Information: None identified
4.Storage & Handling Attributes
- Storage Conditions: Store in a dry place to prevent corrosion of metal contacts
- Handling Precautions: Avoid exposure to moisture; ensure terminals are clean for optimal conductivity
5.Regulatory & Compliance Attributes
- Manufactured in accordance with lab safety standards
- Electrically tested for reliability and durability
6.Environmental & Health Impact
- Recyclable metal and plastic components
Minimal environmental impact; safe disposal under standard electronic waste guidelines
Safety Handling Precautions
- Always use within recommended voltage limits
- Ensure circuit is de-energized before adjusting connections
First Aid Measures
- Electrical Shock: Unlikely at low voltage; seek medical attention for persistent discomfort
- Skin Contact: No chemical hazards; wash if irritation occurs from dirt or residue
Firefighting Measures
- Fire Hazards: Non-flammable in standard use
- Extinguishing Media: Dry chemical, COâ‚‚, or foam if part of broader electrical fire
Special Precautions: Disconnect power supply before addressing electrical fires
Related products
Barlows Wheel Apparatus
Barlows Wheel Apparatus is a classic physics demonstration device used to illustrate electromagnetic effects, specifically the principles of electric motors and the interaction between magnetic fields and electric current. It consists of a rotating wheel in contact with an electric circuit and a magnetic field, demonstrating motion generated by electromagnetic forces. The apparatus is widely used in educational laboratories to teach fundamental concepts of electromagnetism and motor action, as well as in industrial training for understanding motor components and operation.
Bell in Vacuum
Bell in Vacuum is a crucial component used in vacuum systems to create an airtight seal and protect sensitive equipment from atmospheric contamination. Typically made of durable, corrosion-resistant materials, it forms part of vacuum chambers or devices requiring controlled environments. The bell ensures the maintenance of vacuum integrity by preventing air ingress, making it essential for experiments and industrial processes that depend on low-pressure or vacuum conditions.
Bell in Vacuum with Air Pump with Plate
Bell in Vacuum with Air Pump with Plate is an integrated vacuum apparatus used to create and maintain low-pressure environments for laboratory and industrial applications. This assembly includes a vacuum bell, an air pump to evacuate air from the chamber, and a sturdy plate to support or seal samples or components during vacuum processes. Designed for durability and reliability, it is widely used in experiments requiring controlled atmospheric pressure, including vacuum filtration, drying, and physical science demonstrations.
clinostat clock type
The Clinostat Clock Type is a precision laboratory instrument designed to simulate microgravity conditions by continuously rotating biological samples or small objects along a horizontal axis. This rotation counteracts the effect of gravity, allowing researchers to study the effects of weightlessness on plant growth, cell cultures, and other biological specimens. Constructed with durable materials and calibrated for smooth, consistent rotation, the Clinostat Clock Type is widely used in botanical, microbiological, and space biology research.
Complete optical bench
Product Description
Complete Optical Bench is a precision laboratory apparatus designed to facilitate experiments involving optics, such as the study of lenses, mirrors, light refraction, reflection, and focal lengths. It consists of a rigid, graduated base rail with movable holders for optical components like lenses, mirrors, prisms, and light sources. The modular design allows flexible setup of various optical experiments, making it an essential tool in physics laboratories for teaching and research.
Diffraction Gratings
Diffraction Gratings are precision optical components used to disperse light into its component wavelengths for spectral analysis. These gratings consist of a surface with a series of closely spaced lines or grooves that diffract incoming light at specific angles depending on wavelength, enabling separation and measurement of spectral bands. Available in transmission or reflection formats, diffraction gratings are made from materials like glass or quartz and are often coated for enhanced optical performance. They are widely used in laboratories, research institutions, and industrial applications involving spectroscopy, photonics, and laser systems.
Force Pump
Force Pump is a mechanical device designed to transfer fluids by applying manual force through a piston or plunger mechanism. Unlike lift pumps that only raise liquids to limited heights, force pumps are capable of delivering fluids at higher pressures and over greater vertical distances. Constructed from corrosion-resistant metal or durable plastic, force pumps are widely used in educational demonstrations, physics experiments, and small-scale fluid transfer systems. This apparatus illustrates fundamental hydraulic principles and is essential in laboratories, training workshops, and prototype testing environments.
Leslie cubes
Leslie Cubes are metal cubes used in physics laboratories to demonstrate the principles of thermal radiation and emissivity. Each face of the cube has a different surface finish—such as polished, blackened, or white—which affects its heat radiation properties. When heated, Leslie Cubes allow students and researchers to observe how surface texture and color influence heat emission, making them essential for studies in thermodynamics and heat transfer.

Preservatives(food)
Flavor Enhancers
Acidulants
Sweeteners
Antioxidants
Colorants(food)
Nutraceutical Ingredients (food)
Nutrient Supplements
Emulsifiers
Collectors
Dust Suppressants
Explosives and Blasting Agents
Flocculants and Coagulants
Frothers
Leaching Agents
pH Modifiers
Precious Metal Extraction Agents
Antioxidants(plastic)
Colorants (Pigments, Dyes)
Fillers and Reinforcements
Flame Retardants
Monomers
Plasticizers
Polymerization Initiators
Stabilizers (UV, Heat)
Antifoaming Agents
Chelating Agents
Coagulants and Flocculants
Corrosion Inhibitors
Disinfectants and Biocides
Oxidizing Agents
pH Adjusters
Scale Inhibitors( water)
Antioxidants(cosmetic)
Emollients
Fragrances and Essential Oils
Humectants
Preservatives
Surfactants(cosmetic)
Thickeners
UV Filters
Fertilizers
Soil Conditioners
Plant Growth Regulators
Animal Feed Additives
Biostimulants
Pesticides (Herbicides, Insecticides, Fungicides)
Active Pharmaceutical Ingredients (APIs)
Excipients
Solvents(pharmaceutical)
Antibiotics
Antiseptics and Disinfectants
Vaccine Adjuvants
Nutraceutical Ingredients (pharmaceutical)
Analgesics & Antipyretics
Analytical Reagents
Solvents(lab)
Chromatography Chemicals
Spectroscopy Reagents
microbiology-and-cell-culture-reagents
Molecular Biology Reagents
Biochemical Reagents
Inorganic and Organic Standards
Laboratory Safety Chemicals
Specialty Laboratory Chemicals(Special Laboratory Equipment)
Demulsifiers
Hydraulic Fracturing Fluids
Scale Inhibitors(oil)
Surfactants(oil)
Drilling Fluids
Dyes and Pigments
Bleaching Agents
Softening Agents
Finishing Agents
Antistatic Agents
Admixtures
Waterproofing Agents
Sealants and Adhesives
Curing Compounds
Concrete Repair Chemicals
Anti-Corrosion Coatings
Surfactants(cleaning)
Builders
Enzymes
Solvents (Cleaning)
Fragrances
Electronic Chemicals
Catalysts
Lubricants
Photographic Chemicals
Refrigerants
Automotive chemicals
Pyrotechnic Chemicals
Biodegradable Surfactants
Bio-based Solvents
Renewable Polymers
Carbon Capture Chemicals
Wastewater Treatment Chemicals
Pigments
Solvents(paint)
Specialty Coatings
Binders/Resins
Additives
Driers
Anti-Corrosion Agents
Functional Coatings
Application-Specific Coatings
Leavening Agents
Dough Conditioners
Flour Treatments
Fat Replacers
Decoratives
Preservatives(baking)
Plasticizers & Softeners
Reinforcing Agents
Adhesion Promoters
Vulcanizing Agents
Antidegradants
Blowing Agents
Fillers & Extenders
Accelerators & Retarders