Rheostat 8 Inches
Product Code : SCL-PLE-11802
The StemAids 8-Inch Sliding Rheostat is a compact, high-efficiency electrical component engineered for the empirical study of current modulation and circuit control. This 8-inch (approx. 200mm) model is the ideal choice for laboratories with limited bench space or for integration into portable experimental kits. Manufactured to ISO 9001:2015 standards, it provides a stable, high-resolution variable resistance interface for quantifying Ohm’s Law and verifying circuit theorems in Secondary and Vocational technical environments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Tube Length |
8 Inches (200mm) nominal |
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Resistive Element |
Oxidized Constantan (Eureka) wire for stable resistance-temperature linearity |
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Core Material |
High-grade vitrified ceramic tube for superior insulation and heat dissipation |
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Standard Ratings |
Various combinations available (e.g., 10Ω/5A,20Ω/3A,50Ω/2A,100Ω/1A) |
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Slider Mechanism |
Spring-loaded phosphor-bronze contact brush with ergonomic insulated handle |
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Terminal Access |
Three 4mm sockets/binding posts (supporting Rheostat and Potentiometer modes) |
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Frame |
Sturdy metallic end-supports with anti-slip mounting feet |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
8533.29.00 (Electrical variable resistors/rheostats) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Resistance Interface: Facilitates student visualization of the relationship between resistive length and electrical impedance (R∝L), supporting Electromagnetism Module 101.
- Current Quantification: Enables the physical study of circuit dynamics, allowing learners to apply variable resistance to observe changes in current flow and potential difference.
- Potential Division Analysis: Supports the analysis of voltage regulation; by utilizing the three-terminal configuration, students can create a continuously variable potential divider.
- Measurement Accuracy Evaluation: Allows students to evaluate the importance of clean contact points and uniform winding, fostering a deeper understanding of experimental precision and error reduction.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring "Double-Cushion" foam molding to protect the ceramic core from mechanical impact and the slider rod from bending during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a datasheet specifying the maximum current limits to prevent thermal damage.
- Durability: Tropicalized design featuring anti-oxidation coatings on the resistance wire and corrosion-resistant hardware to maintain performance in high-humidity climates.
Direct OEM Sourcing Advantages
Procuring the StemAids 8-Inch Rheostat directly ensures vertical manufacturing control:
- In-House Ceramic Vitrification: Every ceramic tube is batch-tested for thermal shock resistance, ensuring the core does not crack even under high-wattage operation.
- Precision Wire Tensioning: Direct oversight of the winding process ensures that the wire turns are perfectly uniform and tight, preventing "jumps" or erratic resistance changes during adjustment.
- Direct Factory Spares Availability: Guaranteed availability of replacement slider brushes, insulated knobs, and ceramic tubes to maximize the long-term ROI of laboratory assets.
- Manufacturing Control: Direct oversight of the terminal assembly ensures ultra-low contact resistance, providing students with accurate and repeatable data for their sensitive electrical experiments.
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