B&B Electronics 855-19619 - Manual - Manual (Page 9)

5
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 overcurrent protection and supply wiring.
2. In addition, the following must be observed:
a. Connect the equipment to a 35 to 75 VDC power source that is electrically
isolated from the alternating current source. The 35 to 75 VDC power
source is connected to a SELV DC 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.
3. Reliable Earthing of this equipment must be maintained. Particular attention
should be given to supply connections when connecting to power strips, rather
than direct connections to the branch circuit.