B&B Electronics IE-MediaChassis/2 Operation Manual - page 9
DC Power Supply Precautions
The following precautions must be observed when installing the chassis model
with an internal DC power supply.
1. Check nameplate ratings to ensure there is no overloading of supply circuits
that could effect over current protection and supply wiring.
2. In addition, the following must be observed:
a. Connect the equipment to a 35 to 50 VDC power source that is
electrically isolated from the alternating current source.
b. Route input wiring to terminal block and secure in such a manner that it
is protected from damage and stress. Do not route wiring past sharp
edges or moving parts.
c. Incorporate a readily accessible disconnect device, with a 3mm
minimum contact gap in the fixed wiring.
d. Install only in Restricted Access Areas (dedicated Equipment Rooms,
Equipment closets or the like) in accordance with Articles 110-18, 110-
26, and 110-27 of the National Electric Code, ANSI/NFPA 70.
e. Provide a listed circuit breaker suitable for branch circuit protection of
the wiring and rated maximum 1A @ 48 VDC.
f.
For supply connections, use wires suitable for at least 75 ° C.
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