Rheostat 12 Inches
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Product Code : SCL-OS-12291
The StemAids 12-inch Linear Rheostat is a precision variable resistor engineered for high-wattage current regulation and voltage division in University and Secondary education physics laboratories. Compliant with international electrical safety standards, it utilizes high-thermal ceramic cores and oxidized resistance wire to ensure linear output. Ideal for instructing Ohm’s Law and circuit analysis in Vocational (TVET) environments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Material Grade |
Oxidized Constantan/Alloy wire wound on a vitrified ceramic tube |
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Dimensions |
300 mm (12 inches) active winding length |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
8533.29 (Electrical resistors, variable) |
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Terminal Interface |
Triple-terminal configuration with 4mm safety binding posts |
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Support Structure |
Heavy-duty die-cast metal end supports with chemical-resistant finish |
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Slider Assembly |
Low-friction metal contact wiper with high-insulation handle |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
Feature: Exposed wire-wound ceramic core Outcome: Facilitates empirical observation of the physical relationship between conductor length and electrical resistance, supporting fundamental Electromagnetism comprehension.
Feature: Triple-terminal architecture Outcome: Supports student synthesis of both rheostat (current limiting) and potentiometer (voltage divider) circuit topologies, fostering advanced circuit design skills.
Feature: Linear sliding contact wiper Outcome: Enables precise manual data acquisition for mapping V-I characteristics, enhancing student proficiency in quantitative laboratory analysis.
International Logistics & Compliance
As a primary manufacturer, StemAids ensures institutional readiness for global procurement tenders:
Packaging: Export-grade seaworthy crating (ISPM-15 compliant) designed to mitigate mechanical stress and ceramic fracture during multi-modal transit.
Documentation: Includes Manufacturer’s Authorization Form (MAF), IQ/OQ/PQ Certification, and comprehensive technical User Manuals in English.
Durability: Tropicalized design tested for operational stability in demanding climates and non-climate-controlled storage environments (up to 45°C/90% Humidity).
Direct OEM Sourcing Advantages
Procurement through StemAids vertical integration ensures definitive factory-direct authority and long-term asset reliability:
In-house Precision Calibration: Every 12-inch unit undergoes rigorous bench-testing for resistance tolerance and insulation integrity before dispatch.
Batch-Tested for Uniform Reliability: Manufacturing protocols ensure identical electrical performance across large-scale institutional rollouts, critical for standardized testing environments.
Direct Factory Spares Availability: We maintain a dedicated inventory of replacement sliders, wiper contacts, and ceramic cores to maximize laboratory equipment lifecycle and minimize downtime.
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