Power Cords, Plug Connectors And Receptacles - IBM 650 SYSTEM Installation Manual

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POWER
CORDS,
PLUG CONNECTORS AND RECEPTACLES
The
following
units
have
power
input
cords and plug connectors
.
These power
cords are
shown
on
the
schematic,
page
35.
The
length,
diameter and
minimum
bending radius
is
shown
below.
Minimum
Bending
Power Cord
Length
in
Feet
Diameter
in
Inches
Radius
in
Inches
355
to
power
receptacle
14
5/8
1
1/2
407
to
power
receptacle
8
3/4
5/8
1
1/4
652
to
power
receptacle
14
1
3/4
7
653
to
power
receptacle
14
l
3/4
7
655
to
power
receptacle
14
1
3/4
7
838
to
power
receptacle
6
3/8
1
1/2
The power
cords
will
be
supplied with a three
prong
plug connector
for single
phase,
and
a four
prong
plug connector
for
three-phase.
The
receptacles
must
be
supplied
by
the
customer
The power
service,
plug connector
and
receptacle chart on
page
26
lists
the
receptacles
to
be
used
for the
various
units
Phase
Rotation
of
Receptacles
The
three-phase
power
receptacles
must
be
wired
for
correct phase
rotation.
(See
page
36.)
A
.
The Green
wire should be connected
to
the
ground
connection
B
.
Looking
at the
face
of the
receptacle, the
conductors should be Red,
White,
Black
and
Green
in
a
counterclockwise
direction
Phase
1
-
Red;
Phase
2
-
White;
Phase
3
-
Black
25

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