Portable generators: nameplate output is not the whole description
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Copy a portable generator's ratings exactly, including their units and qualifying words. A headline number without its context can describe a different capability from the one a buyer expects.
Keep three records separate: the manufacturer's specification, the machine's recorded history and your current observations. None should silently replace the others. This is a catalogue exercise, not a procedure for connecting or testing a generator.
Transcribe, then verify
Photograph the rating plate and identify the exact model. Obtain the matching manufacturer's documentation where possible. Do not borrow specifications from a visually similar generator found online.
Use this transcription sheet:
| Item | Nameplate or document wording | Evidence reference |
|---|---|---|
| Manufacturer, model and serial | Copy exactly | Plate photograph |
| Stated output rating | Preserve units and continuous/maximum wording where shown | Plate or exact-model manual |
| Voltage, phase and frequency | Record each as marked | Plate photograph |
| Output connections | Describe visible labelled connections without promising compatibility | Detail photographs |
| Engine identifier | Record separately from the generator model | Engine plate |
| Supplied accessories | List leads, adapters, manuals or other included items individually | Inventory photographs |
Leave unclear fields unresolved. Converting units or estimating usable output from the engine alone can introduce a claim you cannot support. Refer technical ambiguities to an appropriate specialist or the manufacturer.
Explain the machine's history
Record service documents, known faults, storage periods and any changes to the unit. A service invoice needs to match the machine and identify the work done. “Serviced” should not imply that every part was assessed.
Treat the hour display carefully. The plant engine-hours guide explains how to keep a displayed reading separate from an unsupported lifetime-use claim. If the display has been replaced, retain that history.
An engine-driven welder needs a separate description of its welding and generator functions. Use the engine-driven welder guide rather than assuming a generator figure describes welding performance.
Keep electrical and mechanical claims distinct
HSE's electrical equipment guidance covers suitability and maintenance in Great Britain. The appropriate assessment depends on the equipment and circumstances; Northern Ireland requirements need separate checking. Do not energise an unfamiliar unit merely to improve a sale description.
The PAT-record guide helps distinguish a label from broader condition evidence. Supplied cables and accessories also need accurate identities and condition information.
Send the photographs, rating transcription and history file to UK Auction Group. Highlight unanswered rating questions before agreeing the catalogue wording.
Explore the workshops and tools guides.
Sources
This guide gives general information. Equipment-specific, legal, tax and safety decisions may need a qualified adviser or competent specialist. The guides do not promise sale prices, fees or results.