User guide

BLACK BOX
®
Series Convenient Switches Installation and User Guide
4
Cooling Method:
Convection on the regular model. The hardened (H) factory floor and extreme (P)
temperature un-controlled location models have closed cases to withstand dirt and use
special thermal techniques to transfer heat to the outside of the case for cooling.
POWER SUPPLY
These products are intended to be supplied by a Listed, Direct Plug-In power unit, marked
“Class 2”, or a Listed ITE Power Supply, marked “LPS”, which has suitably rated output
voltage (i.e. 9vdc, 12vdc, 24vdc, 48vdc), and suitably rated output current (i.e. 100mA to
500mA).When connected to a 48 V centralized dc source, these products shall be provided
with a Listed 5 A DC fuse in the supply circuit.