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Orientation of Receptacle Assembly
1. NOTICE: Before insertion of a contact into an
insulator, please review the insulator's contact
numbering scheme so the ground and each
contact (phase) is placed into the proper hole.
2. Push the wired contact into the insulating block
until it stops and snaps into place.
3. Ensure its correct mounting by slightly pulling on contact.
4. The male contacts are solid for their entire
length and are inserted with the contact tip first
into the rear of the inlet/plug.
5. The female contacts consist of a flexible braid
and spring and are inserted with the contact tip
first into the rear of the lidded receptacle/connector.
6. Insert the Provided Hole Plugs into the unused
holes in the front of each insulating block.
NOTICE: If a new Receptacle or Inlet is to mate
with a previously installed device, pay particular
attention to the number of contacts and
numbered position in the Receptacle or Inlet.
Continuity will not be obtained unless the male
and female contacts are evenly mated.
Disassembly of PN12c Contacts
1. To remove the contact from the insulating block, the
provided Multi-Contact Removal Tool 9-LD12-37 must
be used. From the front side of the insulating block,
slide the contact removal tool over the contact.
2. Push until the contact pops out the back side of
the insulating block.
3. NOTICE: Each contact is designed to be
removed from the insulating block a maximum
of 3 times. New contacts should be used if
contacts are removed more than 3 times.
Table 6 - Conductor Coding and Terminal Markings
Terminal ID
Function
Green equipment grounding conductor
"G", "E" or GND
only (or green with yellow stripe).
White or gray, system ground
"N"
(neutral conductor only "N")
PN20/PN30/PN20HT/PN30HT Models
"1" or "R1" (Black)
"Hot" conductors, no specific lettered ter-
"2" or "S2" (Red)
minal applies to any specific colored conductor
"3" or "T3" (Blue)
PN7c/PN12c Models
"1" to "6" or
"Hot" conductors, no specific lettered ter-
"1" or "11"
minal applies to any specific colored conductor
ASSEMBLY
Verify power has been disconnected prior to assembly.
For In-Line Connections
Insert the cable through the handle and gasket. Strip
the cable jacket to provide a workable wire length,
being mindful that the jacket must extend into the
handle to achieve a secure grip. Then strip the wires
to the lengths indicated in Table 4. When applicable
back out the terminal screws far enough (but not
completely) to allow the conductors to pass. Insert
the conductors fully into their respective terminals
and hand tighten to the torques indicated in Table 5.
Bushing
Strain
Relief
Compression
Handle
Color-Coded
Nut
Gasket
For Mounted Receptacles/ Inlets
Insert the cable through the wall box and cut to allow
adequate length. Strip the cable jacket to allow a
workable wire length. Strip the individual cables to
the lengths indicated on Table 4. When applicable
back out the terminal screws far enough (but not
completely) to allow the conductors to pass. Insert
the conductors fully into their respective terminals
and hand tighten to the torques indicated in Table 5.
Assemble the receptacle/ inlet and the color gasket
to the box with the appropriate hardware.
Hole Pattern for Custom Mounting
In applications where custom mounting to a panel or box is
desired, the clearance and mounting holes should be drilled
as indicated in the following diagram and Table 7.
Table 7 - Custom Mounting Dimensions
Model
PN20/30
PN20HT/30HT
PN7c
PN12c
PN12cSS
NOTICE: In order to maintain the IP protection
provided by PN 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.
OPERATION
To ensure safe and reliable operation, Meltric
plugs and receptacles must be used in
accordance with their assigned ratings.
Meltric plugs & receptacles can only be used in conjunction
with mating receptacles or plugs manufactured by Meltric or
another licensed producer of products bearing the
technology trademark.
Meltric plugs & receptacles are designed with different
keying arrangements, so that only plugs and receptacles
with compatible contact configurations and electrical
ratings will mate with each other.
Connection
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.
Receptacle (or Inlet)
B
C
B
'A'
'B'
Inches mm Inches mm Inches mm
2.00
50
1.65
42
.19
2.00
50
1.65
42
.19
2.00
50
1.65
42
.19
2.00
50
1.65
42
.19
2.00
50
1.65
42
.19
Disconnection
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 protective plug cap to prevent contamination
by dirt, dust or other debris.
LOCKOUT PROVISIONS
The plug cap can be locked with a locking pawl
except PNHT or PN12cSS.
Screw: Plug inserted or cap closed, turn the 5 /16"
screw with an Allen key until it reaches the bottom.
NOTICE: Do not over tighten.
MAINTENANCE
disconnect electrical power to the receptacle to
eliminate the risk of electrical shock.
Meltric products require little on-going maintenance.
However, it is a good practice to periodically perform
the following general inspections:
• Check the mounting screws for tightness.
'C'
• Verify that the weight of the cable is supported
by the strain relief mechanism and not by the
5.0
terminal connections.
5.0
5.0
• Check the IP gaskets for wear and resiliency.
5.0
In wet /wash-down environments, the gaskets
5.0
should be inspected periodically (6 months) for
wear and hardness. Replace gaskets as needed.
• Verify the electrical continuity of the ground
circuit every 6 months.
• Check the contact surfaces for cleanliness and pitting.
Deposits of dust or debris can be rubbed off the
contacts with a clean cloth. NOTICE: Under no
circumstances should the contact surfaces be filed
since this will remove the silver-nickel, butt-contact
tip and degrade the contact consistency. Sprays
should not be used since they tend to collect dirt. If
any significant pitting of the contacts or other serious
damage is observed, the device should be replaced.
Receptacle contacts may be inspected by qualified
personnel. This should only be done with the
power disconnected. Any repair or service must be
performed with genuine Meltric parts only.
TM
MANUFACTURER'S RESPONSIBILITY
Meltric's responsibility is strictly limited to the repair or
replacement of any product that does not conform to
the warranty specified in the purchase contract. Meltric
shall not be liable for any penalties or consequential
damages associated with the loss of production, work,
profit or any financial loss incurred by the customer.
Meltric Corporation shall not be held liable when its
products are used in conjunction with products not
bearing the
TM
of Meltric products in conjunction with mating devices
that are not marked with the
trademark shall void all warranties on the product.
Before inspecting, repairing, or
maintaining Meltric products,
technology trademark. The use
technology
TM
INSPN J
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