getting started
1
16
Synrad
Firestar i401
operator’s manual
Connecting
5
Carefully insert the voltage selection assembly back in to the power supply chassis. The
words “240VAC” should appear in the cutout area as seen in Figure 1-7.
6
Tighten the knurled thumbscrews fastening the voltage selection assembly to the PS-401
chassis.
AC three-phase connections
Caution
possible
equipment
damage
All AC input wiring and fusing to the DC power supply must be
sized and connected in accordance with applicable local, state, and
national requirements.
Local, state, and national code requirements (like NEC, CSA, and
IEC 60364) supersede any recommendations provided in this manual.
Table 1-3 provides recommendations for three-phase input wiring and fusing.
Table 1-3
AC three-phase electrical recommendations
Parameter Recommendation
Input voltage range (3Ø)
342 V–528 VAC; 380 V–480 V nominal
180 V–264 VAC; 200 V–240 V nominal
Input current, max.
25 Amperes per phase
Wire gauge
10 AWG
Fuse/circuit breaker
30 Amps
To connect three-phase AC input power, refer to Figure 1-7 and perform the following steps:
PE
L1
L2
L3
AC INPUT
Figure 1-8
PS-401 input section
