LV Equipment Cable Selection

Reference tool only. Ampacity values are the commonly published CSA C22.1 Table 2/4 figures for ≤3 current-carrying conductors at 30°C ambient — verify against the current edition for the exact size, and against Table 1/3 directly for single-conductor free-air installations, where this tool uses a derived approximation. Final selection must be reviewed by a qualified electrical professional.

LoadTag, current, continuous duty

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Equipment tag Load current (A) Is this a continuous load (operates ≥3 h)?

Temperature RatingsConductor insulation vs. equipment terminals

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Conductor insulation rating

Equipment terminal rating

Material & InstallationCopper/aluminum, raceway or free air

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Conductor material

Installation method

Overcurrent Device80%-rated vs. 100%-rated breaker

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Breaker duty rating

Result — Recommended Cable

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Recommended size

Required ampacity

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Ampacity column used

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Parallel sets per phase

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Ampacity (per set / total)

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Standard breaker size

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Table used

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Include Calculation Ledger in report Include All Sizes Evaluated in report Include OhmZone brand mark in report

Report template (.docx, optional)

Calculation Ledger

clause-by-clause

All Sizes Evaluated

Size	Ampacity/set	Total ampacity	Meets required?

Manufacturer Catalogues — MCC / Switchgear / Switchboard / Panel

Manufacturer	Product lines	Catalogue