Meltric DX Instrucciones De Operación

ENGLISH OPERATING INSTRUCTIONS
CONSIGNES D'UTILISATION
DX
DX
©2018 MELTRIC Corporation. All rights reserved.
MELTRIC Corporation / 4765 W. Oakwood Park Drive Franklin, WI 53132
Tel. : 800 433 7642 / Fax : 414 433-2701 / e-mail : mail@meltric.com
A manufacturer of products using Marechal technology
meltric.com
GENERAL
MELTRIC's DX Series plugs & receptacles are de-
signed for industrial use according to IEC/EN 60309-
1. They are designed for applications where rugged
metal construction is required and when there is a
need for amperages up to 100A. Follow the instruc-
tions below to ensure the proper installation and use of
this product.
WARNING
There are inherent
dangers associated with
electrical products. Failure to follow safety precau-
DANGER
tions can result in serious injury or death. These
instructions must be followed to ensure the safe and
CAUTION
proper installation, operation and maintenance of the
MELTRIC devices. Before installation, disconnect all
sources of power to the circuit to eliminate the risk
NOTICE
of electrical shock.
RATINGS & CERTIFICATIONS
To ensure the safe use of this product,
the installer must verify that the product
is properly rated for the application.
The amperage, voltage, temperature, and environ-
mental ratings are indicated on the product label.
WARNING
MELTRIC's DX Series plugs and receptacles are
DANGER
ATEX-rated in accordance with the European ATEX
Directive (94/9/EC).
CAUTION
The ATEX rating certifies the product for use in surface
(non-underground) applications where a high level of
protection is required and where the presence of an
NOTICE
explosive atmosphere is likely to occur (Zone 1 and
Zone 21 environments). It's suitable for installation in
areas that may contain flammable gases, vapors, mists,
or dusts, including subdivision C gases. The prod-
uct possesses explosion protection and is provided
with 'e' increased safety in the conductor termination
area and 'd' explosion proof chambers for making
and breaking electrical current that can withstand the
pressure of internal ignition. It also can prevent arcs,
flame or other ignition events from being communi-
cated to the surrounding atmosphere. The maximum
allowable surface temperature of the product is 85°C
(185°F) at 40°C (104°F) ambient.
INSTALLATION
DX Series devices must be used in conjunction
with other appropriately rated hazardous duty prod-
ucts and must be installed by qualified electricians
and in accordance with all applicable local and na-
tional electrical codes.
Before installing, verify that (1) the power is off, (2)
the product ratings are appropriate for the application,
and (3) the conductors meet the requirements of the
National Electric Code and are within the capacities of
the DX terminals noted in Table 1.
Table 1 - Wiring Terminal Capacity
Device
DX1 - 20A
DX3 - 32A
DX6 - 63A
DX9 - 125A
Capacity is based on THHN wire sizes
1
General Installation Notes & Precautions
INSDX I
1. Wire strip lengths are indicated in Table 2. Strip
lengths for cable sheathing will depend on the
specific application. When used with handles, the
cable sheathing should extend into the handle to
ensure secure cord gripping.
Table 2 - Wire Strip Length – Dimension A
Phase & Neutral
Device Inches
DX1 20A 0.79
DX3 32A 0.79
DX6 63A 1 1/16
DX9 125A 1 3/8
2. Wiring terminals are spring assisted to prevent
loosening due to wire strand settlement, vibra-
tion and thermal cycling. NOTICE: They should
not be overtightened. Appropriate tools and tight-
ening torques are indicated in Table 3. Wiring
must be made according to applicable national
installation standards. Follow all conductor coding
and terminal marking standards. Back out ter-
minal screws far enough (but not completely) to
allow a complete insertion of conductors.
metal parts must be connected to Earth ground.
Table 3 - Terminal Screw Tightening Torques
Torque Required
Device/Contact In. lb
DX1 (20 A) 11
DX3 (32 A) 11
DX6 (63 A) 26
DX9 (125 A) 53
3. Only handles with supplied cord grips may be
used in order to maintain proper ATEX ratings.
Table 4 - Cord Grip Cable Tightening Range
Suffix #
Inches
-20M 0.31 - 0.51
-25M 0.35 - 0.63
-32M 0.47 - 0.83
-40M 0.63 - 1.06
-50M 0.91 - 1.38
-63M 1.42 - 1.89
Assembly for In-line Plugs / Connectors
Do not overtighten terminal or self-tapping
screws. Tighten screws to the proper torque
to ensure a secure connection. Insert cable
through handle (connector) or remove plug interior
molding from the front and insert cable through plug
WARNING
(in AWG)
1
Main Contacts
Min Max
14 8
14 8
6 1
2 2/0
Earth
Conductor Conductor
mm Inches mm
20 0.79 20
20 0.79 20
27 1 3/16 30
35 1 3/16 30
All
WARNING
Flat
DANGER
N-m Screwdriver
CAUTION
1.3 4 x 1 mm
NOTICE
1.3 4 x 1 mm
3 6 x 1.2 mm
6 6 x 1.2 mm
Range
mm
8 - 13 mm
9 - 16 mm
12 - 21 mm
16 - 27 mm
23 - 35 mm
36 - 48 mm
body (plug/inlet). Strip the cable sheath as required
to provide a workable wire length while being aware
that the strain relief must clamp on the cable sheath.
Strip the individual wires to the lengths indicated
in Table 2 and twist the strands of each conductor
together. Back out the terminal screws on the recep-
tacle (or inlet) only far enough to allow the conductors
to pass. Insert the conductors fully into their respec-
tive terminals and tighten the terminal screws with a hand
screwdriver to the torque indicated in Table 3. Verify that
the cable jacket will extend beyond the strain relief
and into the handle. Assemble the receptacle (or
connector) to the handle. Adjust the cable location
so that it will not be under tension inside the handle
and tighten the compression nut to secure the cable.
After assembly, the cable sheath must extend into the
handle. Assemble handle with supplied screws and
gasket (connector) or assemble interior molding into
plug casing (plug) and tighten cord grip (cable gland).
Cord grip cable tightening ranges are indicated in
Table 4. While clamping or anchoring, the conduc-
tors inside the handle must not be tight.
NOTICE: For a proper clamping the use of PVC
cables is not recommended.
Assembly for Mounted Receptacles (or Inlets)
In applications where DX receptacles are mounted
to wall boxes, panels or other equipment, optimal
operation is achieved when the device is installed with
the pawl latch at the top. (However, if the receptacle
is mounted to the MELTRIC surface box accessory,
the pawl latch will be on the bottom due to the vertical
orientation of the box/receptacle.)
NOTICE: if the DX device is mounted to a wall box,
make sure that hole plugs are securely tightened in
any unused connection holes.
All wires brought into a MELTRIC wall box or hazard-
ous duty box/panel must be connected in accordance
with all approved local and national electrical codes
based on the rating of the hazardous location en-
vironment. The individual wire insulators should be
stripped off base on the dimensions given in Table 2.
Then, twist the strands of each conductor together.
Back out the terminal screws on the receptacle (or
inlet) far enough to allow the conductors to pass
and insert the conductors fully into their respective
terminals. Tighten the terminal screws with a hand
screwdriver to the torque indicated in Table 3. As-
semble the receptacle (or inlet) on adapter or wall
box, using gaskets and screws provided. When not
in use, ensure that the protective cap or lid supplied is
properly secured to prevent environmental contamina-
tion. Assemble the mating plug (or inlet) to the cord
end as indicated in the assembly instructions for in-
line connections. In cases where custom mounting is
being performed to an appropriate hazardous duty box
or panel, the clearance and mounting holes should be
drilled as indicated in the next section, Hole Pattern
for Custom Mounting.
Hole Pattern for Custom Mounting
NOTICE: In order to maintain IP65 protection in cus-
tom installations, watertight seals must 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. The hole depth must be sufficient to
achieve adequate gasket compression. Refer to the
following instructions and drawing for the assembly of
the plug/receptacles or inlets on 'e' increased safety
boxes, panels or enclosures:
B
A
C
B