Side-by-side reference

Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

First referenceCompare with

W REC

IEEE / ANSI

ANSI/IEEE recording wattmeter symbol

The recording-wattmeter form identifies active-power measurement with a documented recording function. The schematic supplies the measurement inputs; recording interval, retained history and sign convention are configured instrument information.

Drawing use: SLD / Schematic
Application: Metering & protection
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Autodesk IEEE-oriented Instrumentation and Sensors functional form. Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

Recorded power and accumulated energy are different measurement records.

Full reference

W REC

Symbols

Recording wattmeter

A recording wattmeter measures active power and records it according to the specified instrument. The schematic identifies voltage and current inputs while the logging settings belong in the instrument configuration.

Drawing use: SLD / Schematic
Application: Metering & protection
Reference family: IEC / Manufacturer

A distinction that matters

A wattmeter records power at a time or interval; an energy meter accumulates power over time.

Full reference

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.