1-9
Specifications and Preinstallation Requirements
!
WARNING
To reduce the risk of electrical shock, this
equipment uses a three-wire or five-wire elec-
trical cord and plug to connect the centrifuge
to earth-ground. To preserve this safety
feature, make sure that the matching wall
outlet receptacle is properly wired and
earth-grounded.
Prior to instrument purchase, the power configuration should be
determined and the appropriate instrument ordered.
Table 1-1. Nominal Supply Voltage Ratings for the Avanti J-20XP
* Unbalanced three-phase. Split for single-phase operation internally.
SINGLE AND THREE-PHASE POWER CONNECTIONS
Figure 1-1 shows the power connection for single-phase centrifuges,
including earth-ground and two power leads with 30-ampere circuit
breakers. Figure 1-2 shows the power connection for three-phase
centrifuges, including earth-ground and three power leads with
minimum 16-ampere circuit breakers and common neutral
connection. Table 1-2 contains wiring information.
Nominal Instrument
Voltage Rating
Instrument
Part
Number
Instrument
Part Number
(Elutriation
System)
Nominal
Supply Frequency
Power Cord and Plug
Description
Single-phase, 200/208/240 V
368608
368640
180–264 V,
50/60 Hz, 30 A
permanently attached three-
wire UL/CSA-approved cord
with NEMA type 6-30P plug
Single-phase, 230 V
368611
368641
180–264 V,
50 Hz, 30 A
permanently attached three-
wire CENELEC harmonized
cord without plug
Three-phase, 220/380 V
+ Neutral*
368612
368643
313–457 V,
plus neutral,
50 Hz, 16 A
permanently attached five-
wire CENELEC harmonized
cord without plug
