Wire Derating Chart ~repack~ -

Multiply the wire’s original 90°C ampacity (30A for 12 AWG) by 0.71:

| Ambient Temp | Adjustment Factor for 90°C-rated wire | |--------------|----------------------------------------| | 21–25°C | 1.00 | | 26–30°C | 0.96 | | 31–35°C | 0.91 | | 36–40°C | 0.87 | | 41–45°C | 0.82 | | 46–50°C | 0.76 | | | 0.71 | | 56–60°C | 0.65 | wire derating chart

When it comes to electrical wiring, safety is of utmost importance. One crucial aspect of ensuring electrical safety is to properly size and derate wires to prevent overheating, which can lead to fires, equipment damage, and even fatalities. A wire derating chart is an essential tool for electrical engineers, technicians, and contractors to determine the correct wire size and ampacity for a specific application. Multiply the wire’s original 90°C ampacity (30A for