Operation Overview
Eaton Advanced ePDU User’s Guide P-164000042—Rev 1
www.eaton.com/ePDU
37
Three-Phase Configurations
The type of ePDU input connector plug varies by model to accommodate different amperage ratings. The
IEC60309 connector plugs are configured as delta or wye topologies as follows:
l
The delta configuration uses a four-wire input connector plug with three phase wires, a protective earth
(ground) wire, and no neutral wire. This is commonly expressed as 3W+PE (delta).
l
The wye configuration uses a five-wire input connector plug with three phase wires, a protective earth
(ground) wire, and a neutral wire. This is commonly expressed as 3W+N+PE (wye).
Table 5 shows examples and descriptions of delta and wye configuration codes.
Environmental Protection and Pin Alignment
The input connector plugs have Ingress Protection (IP) ratings that specify the degree of environmental
protection for electrical equipment. The IEC60309 input connector plugs that are either splash resistant (S) or
waterproof (W).
l
Splash resistant plugs are IP-rated at IP 44, which means the plug is protected against solid objects less
than 1.0 mm in diameter.
l
Waterproof plugs are IP-rated at IP 67, which means the plugs are watertight, splashproof, and dust tight.
The pin alignment is different for four-wire (delta) and five-wire (wye) configurations. This orientation is
commonly expressed as a clock position. See Figure 28 for example clock positions.
Figure 28. Example Clock Positions
Table 5. Example Three-Phase Topologies
Code
4-pin Plug (delta) - 4
5-pin Plug (wye) - 5
Maximum
Amperage
(A) Rating
Plug (P)
outlet/Socket (R) or
Connector (C)
Clock Position
(6 or 9)
Waterproof (W)
or
Splash Resistant (S)
460P9W
4
60
P
9
W
532P6S
5
32
P
6
S
Protective Earth
(Ground)
L1
L2
L3
L1
L2
L3
Neutral
Protective Earth
(Ground)
Delta, 4-pin plug
Wye, 5-pin plug
Alignment tab
Alignment tab
3W + PE
3W + N + PE
9 o'clock
6 o'clock
