Resistance Box, Plastic Manufacturer,Supplier and Exporter in India
Product Code : SCL-ES-11799
Designed for precise variable resistance induction in Wheatstone bridges and potentiometer circuits, this plug-type resistance box facilitates the measurement of unknown resistance and internal battery EMF. Engineered for Secondary and Vocational physics curricula, the unit utilizes non-inductive wound coils to eliminate inductance interference. This instrument ensures high-fidelity null-point detection in alignment with international laboratory safety and performance standards.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Housing Material |
Impact-Resistant Engineering Plastic (Molded ABS/Polycarbonate) |
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Resistor Configuration |
Non-inductively wound Constantan/Manganin coils |
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Contact Interface |
Precision-machined brass blocks with tapered interchangeable plugs |
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Resistance Range |
Multi-dial or linear configurations (e.g., 1 to 5000 Ohms) |
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Terminal Connectivity |
Heavy-duty 4mm brass binding posts (shrouded compatible) |
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Accuracy Tolerance |
±1% to ±2% (Batch-calibrated at 20°C) |
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HS Code |
9023.00.10 (Educational/Demonstrational Instruments) |
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ISO Compliance |
Manufactured under ISO 9001:2015 Quality Management Systems |
Key Pedagogical Outcomes (Bloom’s Taxonomy)
Feature: Tapered Brass Plug Interface. Outcome: Allows students to "Apply" the principle of zero-contact resistance, minimizing measurement error during circuit balancing.
Feature: Non-Inductive Coil Winding. Outcome: Facilitates the "Analysis" of DC circuits without the interference of self-inductance, ensuring data aligns with theoretical Ohm’s Law calculations.
Feature: Transparent Value Markings. Outcome: Supports the "Understanding" of series resistance summation by providing immediate visual confirmation of the active resistive path.
Feature: Ruggedized Plastic Enclosure. Outcome: Enhances the "Evaluation" phase of laboratory modules by providing a durable, high-insulation environment for sensitive electrical experiments.
International Logistics & Compliance
This instrument is optimized for global institutional procurement and ministerial-level tenders. All units are secured in export-grade seaworthy crating (ISPM-15 compliant) to mitigate risks associated with long-duration logistics. Full technical documentation is provided, including the Manufacturer’s Authorization Form (MAF), IQ/OQ/PQ certification protocols, and comprehensive user manuals in English. The tropicalized design is specifically engineered and tested for operation in high-stress environments up to 45°C and 90% humidity, ensuring long-term shelf-life and performance in equatorial climates.
Why Source from the OEM?
Sourcing directly from the OEM eliminates intermediary variance and ensures total vertical integration of the manufacturing process. Our facility employs automated precision winding and batch-testing for uniformity, ensuring that every resistance box maintains strict tolerance limits. Unlike third-party traders, we offer direct factory spares availability, including replacement tapered plugs and high-conductivity terminal blocks. This direct-from-factory model ensures that all hardware is calibrated for institutional longevity and supported by primary technical engineering data.
