Resistance Box

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Resistance Box Specification

Voltage
Max 250V DC

Accuracy
0.5% or better

Power Source
Passive (No Power Required)

Model No
Standard/Custom (Varies by Manufacturer)

Automation Grade
Manual

Frequency
DC Only

Temperature Range
0C to 50C

Capacity
1 Ohm to 10,000 Ohms (or as specified)

Measurement Range
1 Ohm to 10,000 Ohms (Stepwise)

Feature
Low Contact Resistance, High Stability, Robust Construction

Type
Laboratory Resistance Box

Dimension (L*W*H)
Approx. 270 mm x 110 mm x 85 mm

Weight
Approx. 1.5 kg

Resistance Tolerance
0.5% or better

Packing Type
Individual Box Packing

Finish
Scratch Resistant, Black Bakelite Finish

Insulation Resistance
Greater than 100 M at 500V DC

Maximum Power Dissipation
2 Watts per Step (Typical)

Number of Dials
Typically 6 (1, 10, 100, 1k, 10k steps)

About Resistance Box

We are enlisted as the reliable manufacturer, exporter and supplier of a qualitative range of highly durable Resistance Box. Under the direction of our adept experts, offered box is manufactured utilizing superior quality components and cutting-edge technology. Besides, this box is consisted of multiple resistors and is extensively used in EOT cranes, steel plants, coal mines, rolling mills, etc. Moreover, our clients can get this Resistance Box from us in various specifications and at affordable prices.

Features:

Corrosion resistance
High accuracy
Rugged construction
Shock proof body

Precision and Reliability in One Box

Engineered for accuracy, the Resistance Box features a resistance tolerance of 0.5% and low contact resistance. Its robust construction ensures long-term stability, making it ideal for precise laboratory measurements and calibration tasks.

Versatile Application Range

With a broad measurement range from 1 Ohm to 10,000 Ohms, this resistance box serves educational labs, industrial testing, and research facilities. It supports stepwise adjustments for flexible experimental setups and is suitable for DC voltage applications up to 250V.

User-Centric and Durable Design

The black Bakelite housing resists scratches and wear, ensuring durability. Manual operation requires no external power, making it convenient for varied environments. Each unit is individually packed and a calibration certificate is available upon request.

FAQs of Resistance Box:

Q: How is the resistance box used for measurements in laboratories?

A: To use the resistance box, simply rotate the dials to select the desired resistance value between 1 Ohm and 10,000 Ohms. Connect the box in series with your circuit as needed. Its passive construction requires no external power, making it ideal for precision measurements and calibration tasks.

Q: What benefits does the scratch-resistant Bakelite finish provide?

A: The scratch-resistant, black Bakelite finish enhances the resistance boxs durability and longevity. This robust material protects the device from everyday wear and accidental impacts, ensuring reliable operation and preserving its appearance.

Q: When should a calibration certificate be requested?

A: Request a calibration certificate whenever traceable accuracy is required for quality assurance, compliance, or certification purposesin research, industrial, or educational environments. The certificate ensures the resistance boxs values are verified to meet specification.

Q: Where can this resistance box be installed or used?

A: This resistance box is intended for laboratory use but is also suitable for educational institutions, industrial testing facilities, and calibration laboratories. Its passive, manual design and sturdy build ensure adaptability in a variety of professional environments.

Q: What is the process for changing resistance values with the dials?

A: Simply turn the numbered dials corresponding to each step value (1, 10, 100, 1k, 10k) to the desired position. The total resistance is the sum of the dialed values, allowing stepwise adjustment without interruption of circuit continuity.

Q: How does the high insulation resistance contribute to safe operation?

A: The insulation resistance greater than 100 M at 500V DC prevents leakage currents, ensuring electrical safety for users and protecting sensitive instruments during operationeven at higher voltages up to 250V DC.

Q: What are the key usage benefits for educational and industrial users?

A: Educational users benefit from hands-on demonstrations of resistance concepts, while industrial and calibration labs appreciate the boxs accuracy, low contact resistance, and robust build, which enable reliable, repeatable resistance settings across various applications.

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