3-9
S
ETUP
Operator Manual
3-96
POWER REQUIREMENTS
Line Voltage Disconnect Box
Use a line disconnect box for each power supply. This disconnect box allows the operator to turn the
power supply off quickly in an emergency situation. The switch should be located on a wall near the
power supply, and should be easily accessible to the operator. The interrupt level of the switch must be
equal to or exceed the continuous rating of the fuses. Use slow-blow fuses according to the power
requirements listed below.
Input
Input Current
Recommended
Voltage
Phase
@ 6 kw Output
Slow-Blow Fuse Size
200 VAC
1
52 amps
70 amp
208 VAC
1
50 amps
70 amp
230 VAC
1
45 amps
60 amp
240 VAC
1
43 amps
60 amp
400 VAC
1
30 amps
40 amp
480 VAC
1
25 amps
35 amp
200 VAC
3
30 amps
40 amp
208 VAC
3
29 amps
40 amp
230 VAC
3
26 amps
35 amp
240 VAC
3
25 amps
35 amp
400 VAC
3
16 amps
20 amp
480 VAC
3
13 amps
20 amp
600 VAC
3
11 amps
20 amp
GROUNDING REQUIREMENTS
To ensure personal safety, proper operation, and to reduce electromagnetic interference (EMI), the
Powermax800 must be properly grounded:
•
The power supply must be properly grounded through the power cord according to your local or
national electrical codes. The power supply chassis is electrically conductive and can present a
shock hazard if it is not properly grounded through the line voltage disconnect box. Single-phase
service must be of the 3-wire type with a green or green/yellow wire for protective earth ground. It
must comply with local electrical requirements. Do not use a 2-wire service! Refer to
Grounding,
in the Safety section. Three-phase service must be of the 4-wire type with a green/yellow wire for
protective earth ground. It must comply with local electrical requirements.
•
Refer to the
Standards Index, in the Safety section, for other electrical codes.