Chapter 8
8 - 2
Guidelines for AC-powered equipment
An AC-powered installation must meet the following requirements:
• Install the unit using a 20 Amp external branch circuit protection device
per power feed.
• Normally, one power feed is used for each individual power supply.
Guidelines for DC-powered equipment
A DC-powered installation must meet the following requirements:
• Install the unit using a 50 Amp external branch circuit protection device
per power feed.
• For permanently-connected equipment, incorporate a readily-accessible
disconnect in the fixed wiring.
• Use only copper conductors.
• Normally, one power feed is used for each individual power supply.