Dual Power Supplies - Dc And Ac Inputs; Figure 20: Dc And Ac Power Supply Wiring Examples - RuggedCom RuggedSwitch RSG2100 Installation Manual

Installation
2.3.3 Dual Power Supplies – DC and AC Inputs

Figure 20: DC And AC power supply wiring examples

Notes:

88-300VDC rated equipment: A 300VDC appropriately rated circuit breaker
must be installed.

100-240VAC rated equipment: A 250VAC appropriately rated circuit breaker
must be installed.

A circuit breaker is not required for 48 or 24VDC rated power supplies.

Separate circuit breakers must be installed and separately identified.

Equipment must be installed according to the applicable country wiring
codes.
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RuggedCom 20 RuggedSwitch
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RSG2100