Cisco CDB-8U Installation Manual page 74

Flexible Mounting
the adjacent wiring box. This allows wiring multiple units to the same circuit with only a single supply
wire entry point.
Warning
Catalyst Digital Building Series Switch Hardware Installation Guide
64
When combining multiple switches on a single circuit, refer to the switch ampacity tables
below to verify that the number of switches is appropriate, given the circuit's voltage and
ampacity. The switch ampacity table provides number of units that fit on a single circuit
(after derating to 80% of capacity), i.e. 15A circuit gives number of units possible when only
12A (80% of 15A) is used.
Table 2: Switch Ampacity Rating for Catalyst Digital Building Series PoE/PoE+ Switch
CDB-8P
Nominal Maximum
Input Current
Voltage Consumption
115VAC 2.68A
230VAC 1.34A
277VAC 1.16A
Table 3: Switch Ampacity Rating for Catalyst Digital Building Series UPOE Switch
CDB-8U
Nominal Maximum
Input Current
Voltage Consumption
115VAC 5.18A
230VAC 2.59A
277VAC 2.18A
Circuit 15A
Breaker
Rating:
Circuit 12A
Breaker
Derating
(80%):
Units / 4
Circuit
Units / 9
Circuit
Units / 10
Circuit
Circuit 15A
Breaker
Rating:
Circuit 12A
Breaker
Derating
(80%):
Units / 2
Circuit
Units / 4
Circuit
Units / 5
Circuit
Switch Installation
20A 30A
16A 24A
6 9
12 18
14 21
20A 30A
16A 24A
3 4
6 9
7 11