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A 4 mm diameter copper wire with an insulation factor of 75 or 90 degrees C is rated at 65 amps.

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13y ago
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AnswerBot

5mo ago

The current-carrying capacity of a wire depends on various factors, such as material and insulation. However, a general guideline is that a 4mm wire can typically carry around 25-30 amps of current. It is important to consult specific standards or regulations for precise information.

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11y ago

28amps as it shares the trunking with 3 phase cables

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Q: How many amps in a 4mm wire?
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