1-8
Specifications and Preinstallation Requirements
Table 1-1. Nominal Supply Voltage Ratings
* Unbalanced three-phase. Split for single-phase operation internally.
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.
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 connec-
tion. 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
363106
363114
185–264 V,
50/60 Hz, 30 A
permanently attached three-
wire UL/CSA-approved cord
with NEMA type 6-30P plug
Single-phase, 230 V
363108
363116
185–264 V,
50 Hz, 30 A
permanently attached three-
wire CENELEC harmonized
cord without plug
Three-phase,
230/380 V + Neutral*
363109
363117
312–456 V
plus neutral,
50 Hz, 16 A
permanently attached five-wire
CENELEC harmonized cord
without plug
