Shunt Resistor Power Burden Worksheet Chart

Use this worksheet after the current-shunt calculator result to document rated current, shunt millivolts, burden voltage, shunt watts, meter input, lead arrangement, temperature rise, calibration, and instrument follow-up.

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Quick reference table

A shunt resistor power burden worksheet keeps the measurement chain together. It is different from a current-shunt voltage chart because it focuses on whether the calculated millivolts, shunt watts, meter input range, lead burden, temperature-rise note, and calibration status are acceptable for the test setup.

Shunt burden record

Shunt burden record
Worksheet field	Record value	Review use
Shunt nameplate	Rated current, mV output, resistance, class	Confirms the measurement basis
Power result	Shunt watts, enclosure heat, temperature-rise note	Checks thermal margin
Instrument input	Meter range, input impedance, leads, polarity	Checks burden and accuracy
Calibration	Certificate date, instrument ID, shunt ID	Keeps traceability visible
Closeout	Accept, retest, derate, replace, responsible person	Turns the result into action

Related shunt workflow

Related shunt workflow
Related page	Use this worksheet for	Use the related page when
Current shunt calculator	Calculator-based mV, ohm, and watts result	A new shunt value must be calculated
Current shunt voltage chart	Quick mV output reference	Only the output voltage reference is needed
Equipment testing record	Asset-level test closeout	The full equipment record is being assembled

Formula basis

Shunt watts = current squared x shunt resistance. Burden voltage = current x total burden resistance.

Rated current is the expected measurement current through the shunt.
Shunt resistance is the calculated or nameplate resistance in ohms.
Meter input and lead resistance affect burden voltage and measurement accuracy.
Temperature rise and calibration status decide whether the measurement can be trusted for the record.

Worked examples

100 A 75 mV shunt recordRecord 100 A rated current, 75 mV output, 0.00075 ohm shunt resistance, 7.5 W heat, meter range, lead setup, calibration date, and temperature-rise note.

Low-current test meter burden checkDocument expected current, shunt mV output, meter input, lead length, burden voltage, calculated watts, and whether the instrument range is suitable.

Assumptions. Balanced load and line-to-line voltage assumptions behind this chart.

The worksheet assumes the current-shunt calculator supplies the resistance, millivolt, and power values.
It supports testing and estimation only; it does not certify instrument accuracy or thermal safety by itself.

Code and standard notes. Planning limits that should be checked before final equipment selection.

Use this chart as a calculation record; verify shunt manufacturer ratings, meter input limits, calibration records, lead arrangement, enclosure heat, facility procedure, and qualified-person review before relying on a measurement.

How to use this chart

1Record nameplate basisWrite rated current, millivolt output, resistance, shunt ID, instrument ID, and calibration date before using the result.

2Check burden and heatKeep burden voltage, shunt watts, lead arrangement, meter input, and temperature-rise notes together.

3Close measurement statusMark acceptable, retest, replace, derate, or calibration follow-up so the measurement record is actionable.

Worksheet checklist. Record source basis, review gaps, and assumptions before using the chart result.

Capture electrical valuesRecord current, shunt ohms, millivolts, watts, meter range, lead setup, and burden voltage.
Capture traceabilityRecord shunt serial number, meter ID, calibration status, certificate date, and test responsibility.
Capture thermal reviewDocument temperature-rise note, enclosure condition, derating decision, and follow-up action.

Common mistakes to avoid. Review these before turning chart current into an equipment decision.

Recording only shunt millivolts and omitting watts, meter input, and lead burden.
Using a shunt result without calibration status or instrument identity in the worksheet.
Ignoring temperature rise when the shunt watts are meaningful for the enclosure or test setup.

Frequently asked questions

These answers explain how to use the chart without turning a quick reference into a final design decision.

Why record burden voltage if the shunt calculator gives millivolts?

The shunt output is only one part of the measurement path. Meter input, leads, and added burden can affect accuracy and heat, so they belong with the record.

Is this a replacement for calibration?

No. The worksheet records calibration status and instrument data, but the actual calibration must come from the instrument and shunt calibration process.