Technical Library Note // X3 Power, Wiring & Circuit Protection Ref: NI-TLN-POWER-X3WIREFUSE-R1

Nomadic X3 Rated Power, Wire Size & Fuse Guide

This technical library note provides rated power and current draw information for Nomadic Cooling X3 12V, 24V, and 48V air conditioners, along with recommended main DC power-wire gauge and fuse size for a 15 ft one-way, or 30 ft round-trip, cable run.

Use this guide to understand nominal battery voltage, ECO and High Cool power consumption at 100°F, hot-day design current, voltage-drop assumptions, and fuse coordination for 105°C marine or SXL copper wire. Under the document’s stated design conditions, the guide specifies 1/0 AWG with a 150 A fuse for 12V, 4 AWG with an 80 A fuse for 24V, and 10 AWG with a 30 A fuse for 48V systems.

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