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and loosely install the compression nut. Insert the cable
through the handle, the thin black drawplate gasket
and finger drawplate (if applicable) and the color coded
gasket. Strip the cable sheath to provide a workable wire
length, being mindful that the sheath must extend into
the handle to achieve a secure cord grip. Then strip the
individual wires to 25/64" and twist the strands of each
conductor together.
Verify that the cable sheath extends beyond the strain
relief and into the handle. Assemble the receptacle (or
inlet), the color coded gasket, the finger drawplate, and
the thin black drawplate gasket to the handle with the
four self-tapping screws provided.
Adjust the cable location so that it will not be under
tension inside the handle and tighten the compression
nut to secure the cable.
Assembly for In-line Connections using a Factory
Installed Cord Grip
Factory installed cord grips are installed with the
appropriate torque. When tightening the compression
nut the cord grip should be held with a wrench or pliers
to avoid transferring torque through the cord grip body to
the handle. See Figure C
Poly handles provided with a ½" NPT cord grip
(12 conductor and 24 conductor part numbers
containing a "B", Ex. 711P0BP6) should have a torque of
33.3 in-lb applied to the compression nut. All other poly
handles should have a torque of 66.4 in-lb applied to the
compression nut.
Metallic handles provided with a ½" NPT cord grip (12
conductor part numbers containing a "B", Ex. 791P0BS3)
should have a torque of 55.3 in-lb applied to the
compression nut. All other metallic handles should have
a torque of 88.5 in-lb applied to the compression nut.
Stainless steel handles should have torque applied to the
compression nut that is adequate to prevent slipping, but
not in excess of the values indicated in the table below.
The letters B, C, D, and E in the handle part number
indicate the NPT size of the cord grip. Ex. 7X3P0DS1
Letter
NPT
Torque (in-lb)
B
½"
300
C
¾"
500
D
1"
700
E
1
/
"
1000
1
4
C
Assembly for Mounted Receptacles (or Inlets)
In applications where PN, DS and DSN receptacles
(or inlets) are mounted to wall boxes, panels or other
equipment, optimal operation is achieved when the
device is installed with the latch at the top. For DS
receptacles, mount device so one latch is at the top.
Insert the cable or wires through the wall box and cut to
allow adequate length, strip the cable sheath as desired,
strip the individual wires to 25/64", and twist the strands
of each conductor together.
Assemble the receptacle (or inlet) and the color-coded
gasket to the box with the appropriate hardware.
Assemble the mating plug (or receptacle) to the cord end
as indicated in the assembly instructions above for in-line
connections, except there will be no finger drawplate or
associated black gasket.
Hole Pattern for Custom Mounting
In applications where custom mounting to a panel or box
is being performed, the clearance and mounting holes
should be drilled as indicated in the following diagram
and Table 2.
B
C
Table 2 - Custom Mounting Dimensions
'A'
'B'
Model
Inches mm Inches
PN12c
2
51
1.65
DSN12c
2
51
1.65
DSN24c
2.25
57
1.89
DSN37c
2.50
64
2.17
DS24c
2.25
57
1.89
DS37c
2.50
64
2.17
NOTICE: In order to maintain Type 4X or IP66/IP67
protection provided by PN/DSN models in custom
installations, watertight seals should be used under
the heads of the four mounting bolts and they must be
retained by a lock washer and nut on the inside of the
box or panel. Alternatively, four blind holes may be drilled
and threaded to accommodate the mounting screws,
provided that the hole depth is sufficient to achieve
adequate gasket compression.
n
OPERATION WARNING
To ensure safe and reliable operation MELTRIC
plugs and receptacles must be used in
accordance with their assigned ratings.
They can only be used in conjunction with mating
receptacles or plugs manufactured by MELTRIC
WARNING
another licensed producer of products bearing the
technology trademark.
n
OPERATION (DSN/DS)
DANGER
Connection
CAUTION
To connect a plug and receptacle, first depress the pawl
to open the lid on the receptacle, then orient the plug as
shown in figure 1 so that the red dot on the outside of
NOTICE
the casing lines up with the red dot just to the left of the
latch on the receptacle casing. Push the plug partially
into the receptacle until it hits a stop, then rotate the plug
in the clockwise direction until it hits another stop after
about 30° of rotation. At this point, the circuit is still open.
Push the plug straight into the receptacle as shown in
figure 2 until it becomes securely latched in place. The
electrical connection is now made. On in-line connectors,
squeeze the drawplates on both sides of the device
together until the plug latches in place.
Disconnection
To break the connection, simply depress the pawl as
shown in figure 3 . This will break the circuit and eject
the plug straight out to the rest, or off, position. The
plug contacts are de-energized at this point. To remove
the plug, rotate it counter-clockwise (about 30°) until
it releases from the receptacle as shown in figure 4 .
Close and latch the lid on the receptacle.
B
Connection and Disconnection of Stainless Steel DS
Operation of the stainless steel DS is similar to
the standard DSN operation with the following two
exceptions:
1. The stainless steel DS utilizes two pawls to latch
'C'
the plug to the receptacle. Thus to disconnect the
plug from the receptacle both pawls must be
mm
Inches mm
depressed.
42
.19
5
2. The stainless steel DS24c plug casing does not
42
.19
5
have a red dot that can be used for proper
48
.19
5
alignment before insertion. Instead, the thicker
55
.19
5
groove in the plug casing should be aligned with
the thicker protruding screw in the receptacle and
48
.19
5
the thinner groove should be aligned with the thin
55
.19
5
protruding screw.
3. The stainless steel DSN37c casings do not utilize
red dots for alignment. For proper alignment
before insertion, align the arrow on the plug with
the "off" position on the receptacle.
n
OPERATION (PN)
Connection
®
or
®
Disconnection
protective plug cap to prevent contamination by dirt, dust
or other debris.
n
ACHIEVING RATED WATERTIGHTNESS
Rated ingress protection applies to the device when the
plug and receptacle are mated and latched together.
It also applies to the receptacle when the lid is latched
closed.
NOTICE: MELTRIC
tapered style threads. The use of fitting seal tape is
required to maintain watertightness of all NPT fittings
and joints.
Lockout Provisions
PN and DSN receptacles may be purchased with optional
lockout provisions. To lockout the receptacle, close and
latch the lid and then attach the locking device through
the optional hole provided in the pawl. This will prevent
the lid from being opened for the insertion of a plug. This
feature is not available on SS devices.
NOTICE: Attaching the receptacle locking device with
the receptacle lid open will not prevent the insertion of
a plug. Lockout of the receptacle is only accomplished
when the lid is locked closed.
To connect, open the protective
plug cap, align the red dots on
the plug and receptacle bodies,
insert plug into receptacle,
apply force and rotate the plug
20° counterclockwise (CCW).
The contacts will mate and the
circuit will close.
To open the circuit and remove
the plug, press the pawl, apply
inward force and rotate the plug
20° clockwise (CW). The plug
can be safely withdrawn from the
receptacle. The plug contacts
remain shrouded until after the
circuit is disconnected. Close
®
threaded handles come with
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