Features:

A DC resistance box is an electronic component/instrument that can precisely adjust and output fixed or variable DC resistance values. Its core function is to provide a traceable, , and flexibly adjustable standard resistance load or calibration reference for DC circuits. It is widely used in circuit testing, instrument calibration, and teaching experiments.

Its core function is to combine and output different resistance values using internally preset resistor units (such as metal film resistors and wirewound resistors) through mechanical or electronic switching, meeting the DC circuit's need for a "known resistance." 1. Circuit Testing and Debugging: Simulating Loads/Parameter Verification

During DC circuit design, maintenance, or experimentation, it's often necessary to connect a load with a known resistance value to the circuit to verify that the circuit performance meets design expectations. Typical scenarios include:

Verifying circuit functionality: For example, testing the load capacity of a DC power supply involves connecting a resistance box to the power supply output, adjusting the resistance value (changing the load current, according to Ohm's law: I = U/R), and observing whether the power supply output voltage is stable (e.g., whether the voltage drop under rated load is within the allowable range);

Simulating actual loads: Substituting actual loads not currently installed in the circuit (e.g., the equivalent resistance of a motor or sensor) to preemptively test whether control circuits (e.g., drive circuits and protection circuits) are responding normally;

Troubleshooting: If the circuit current/voltage is abnormal, connect a resistance box with a known resistance and compare the theoretically calculated value with the actual measured value to determine whether the fault is caused by an abnormal load resistance (e.g., a short circuit, open circuit, or resistance drift). 2. Instrument Calibration: As a Resistance Standard Source

The resistance measurement function or current/voltage output accuracy of many electronic measuring instruments (such as multimeters, ohmmeters, DC power supplies, and resistance testers) requires calibration with standard resistors to for ensure accurate measurement results.

Specifications:

Part Name: 2000VDC Industrial-Grade Resistance Box

Models: 10M, 100M, 1000M, 1M

Material: ABS

Color: White

size: 64mm x 58mm x 35.5mm (excluding binding posts)

Rated Resistance: 100MΩ

Resistance Accuracy: +2% (23°C + 5°C)

Resistance Voltage: 2000VDC (between two binding posts)

Resistance Power: 0.25W

Operating Conditions: -40°C to 60°C, 80% RH or less

Dimensions (L x W x H): 64mm x 58mm x 35.5mm (excluding binding posts)

Binding Post Dimensions: Ø13mm x 24mm, spacing 40mm

Electrical Connection Dimensions: Socket: Ø4mm x 17mm; Stud: M6

Package content:

1 x 2000VDC Industrial-Grade Resistor Box

Note: 

1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 

2. Please allow slight manual measurement deviation for the data.

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