120/240 single-phase
- Line-to-line / load voltage
- 240 V
- Nominal line-to-neutral
- 120 V
- Calculation phase choice
- single-phase
More dimensions
- Measurement context
- 240 V across outer lines; 120 V line-neutral
VALICALC · TECHNICAL REFERENCE
Common AC Voltage System Labels
Identify selected named wye and single-phase AC voltage labels. Keep line-to-line and line-to-neutral values separate before choosing a voltage-drop input.
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SELECTED REFERENCE
120/240 single-phase
- Line-to-line / load voltage
- 240 V
- Nominal line-to-neutral
- 120 V
- Calculation phase choice
- single-phase
All fields & cell provenance
- Measurement context
- 240 V across outer lines; 120 V line-neutral
- System label: Selected AC system voltage labels — Selected named system label only; rounded nominal values retained · verified 2026-10-07 · source value 120/240 single-phase.
- Line-to-line / load voltage: Selected AC system voltage labels — Selected named system label only; rounded nominal values retained · verified 2026-10-07.
- Nominal line-to-neutral: Selected AC system voltage labels — Selected named system label only; rounded nominal values retained · verified 2026-10-07.
- Calculation phase choice: Selected AC system voltage labels — Selected named system label only; rounded nominal values retained · verified 2026-10-07 · source value single-phase.
- Measurement context: Selected AC system voltage labels — Selected named system label only; rounded nominal values retained · verified 2026-10-07 · source value 240 V across outer lines; 120 V line-neutral.
v1.3.0 · verified 2026-10-07
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Voltage Drop Calculator →120/240 single-phase240 VBack to answer ↑
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5 matching rows · 5 in this subset
| System label | Line-to-line / load voltage | Nominal line-to-neutral | Calculation phase choice | Actions |
|---|---|---|---|---|
| 120/240 single-phase | 240 V | 120 V | single-phase | |
| 208Y/120 wye | 208 V | 120 V | three-phase | |
| 400Y/230 wye | 400 V | 230 V | three-phase | |
| 415Y/240 wye | 415 V | 240 V | three-phase | |
| 480Y/277 wye | 480 V | 277 V | three-phase |
208Y/120 wye
- Line-to-line / load voltage
- 208 V
- Nominal line-to-neutral
- 120 V
- Calculation phase choice
- three-phase
More dimensions
- Measurement context
- 208 V line-line; 120 V line-neutral
400Y/230 wye
- Line-to-line / load voltage
- 400 V
- Nominal line-to-neutral
- 230 V
- Calculation phase choice
- three-phase
More dimensions
- Measurement context
- 400 V line-line; 230 V line-neutral
415Y/240 wye
- Line-to-line / load voltage
- 415 V
- Nominal line-to-neutral
- 240 V
- Calculation phase choice
- three-phase
More dimensions
- Measurement context
- 415 V line-line; 240 V line-neutral
480Y/277 wye
- Line-to-line / load voltage
- 480 V
- Nominal line-to-neutral
- 277 V
- Calculation phase choice
- three-phase
More dimensions
- Measurement context
- 480 V line-line; 277 V line-neutral
How to use this data
Read the named nominal system values without forcing rounded labels to equal √3 exactly. For a balanced wye calculation, VLL=√3VLN; use the actual relevant measurement.
CHECK THE METHOD
Worked example
208Y/120 means nominal 208 V line-to-line and 120 V line-to-neutral. A three-phase load uses the former; a line-neutral single-phase load uses the latter.
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Common lookup questions
What should I confirm before using this lookup?
A nominal label is not a measured supply or a wiring instruction. Wye relationships do not apply unchanged to split-phase, delta or high-leg systems. Confirm the load connection.
TRACEABLE DATA
Sources, scope & verification
Dataset v1.3.0
Last verified:
Five selected system labels from the public Schneider FAQ; no country-wide voltage/frequency or allowed-tolerance table.
Values are curated product facts or generated scenarios. Paid standards, complete catalogs and source diagrams are not reproduced. A verification date applies to this documented subset.
Selected AC system voltage labels ↗
Type C · Schneider Electric · FAQ000268512; last modified 2026-01-07
A bounded subset of named public product/service facts, paraphrased with conditions; catalog text, drawings and complete tables are not reproduced.
Full provenance & artifact record
- Source checked
- 2026-10-07
- Use basis
- bounded-product-facts
- Artifact SHA-256
- No retained source artifact hash; see the stated source and verification record.