What are the minimum circuit breaker requirements for a Cisco 7500 Series Router DC power supply?
A. Size the breaker for the Cisco 7513 Series Router to deliver 40 A (amperes) to the system. The breaker for the Cisco 7507 Series Router must provide 24 A. You must respect local codes when you size breakers, but as a general rule of thumb you must have 25 percent extra current capacity. Therefore: • For the Cisco 7513 Series Router, choose the 50 A breaker. • For the Cisco 7505 Series Router, a breaker of 30 A is necessary. These sizes are based on the minimum input voltage of -40.5 Volts of Direct Current (VDC). Each of these systems has redundant power supplies as an option. Connect each supply to a separate breaker and branch to maintain redundancy.
