Rack Mounting; Temperature Performance; Input Power Source - HP 654 A Series Operating Manual

Rack Mounting
The power supply can be mounted in a standard 19-inch rack panel or cabinet. Rack
mounting kits are available as Option 908 or 909 (with handies). Installation instructions
are included with each rack mounting kit. Instrument support rails are required for
non-stationary installations. These are normally ordered with the cabinet and are not
included with the rack mounting kits.
Temperature Performance
A variable-speed fan cools the supply by drawing air through the sides and exhausting it out
the back. Using HP rack mount or slides will not impede the flow of air. The temperature
performance is as follows:
Series 654xA/655xA Operates without loss of performance within the temperature range of
0 °C to 40
°C
and with derated output from 40 °C to 55 ®C.
Series 657xA Operates without loss of performance within the temperature range of
0"Cto 55 °C.
INPUT POWER SOURCE
Refer to the applicable paragraphs below for information on the input power source.
Do not
apply power to the power supply until directed to do so in Chapter 3.
CdUtion
Check the line Rating label on the rear of your supply and verify that the
voltage shown there corresponds to the nominal line voltage of your power
source. If it does not, see Appendix B for instructions on changing the power
supply's line voltage configuration.
Series 654xA and 655xA
You can operate your supply from a nominal 100 V, 120 V, 220 230 V, or 240 V
single^^phase ac power source as indicated on the rear panel line filing- label. See "AC Input
Ratings" in Table 1-la for the voltage and freqency range for each type of power source.
"Maximum AC Line Current Ratings" in Table l-2a shows the required current load. The
line fuse is located in a fuseholder on the rear panel (see Figure 2-1). The j^iielabel
on the rear panel shows the fuse value used in the power supply and Table 1-4 identifies the
replacement fuse.
Figure 2-1. Series 654xA and 655xA Power Connection
2-2 Installation