ENGLISH OPERATING INSTRUCTIONS
SP
©2023 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
meltric.com
MODE D'EMPLOI
INSTRUCCIONES
GENERAL
SP devices are single-pole, high-amperage plugs and receptacles that are designed
for safety, durability, and ease of operation. Each device is mechanically interlocked
with an integral pilot circuit switch for controlling the power circuit in order to prevent
connection and disconnection under load. Each of the phases as well as the neutral
and ground, are color coded and keyed to prevent improper connection.
SP receptacles are IP 2X rated to prevent accidental finger contact with live parts.
WARNING
DANGER
These instructions must be followed to ensure the safe and proper installation, operation
and maintenance of the MELTRIC ® devices. Before installation, disconnect all sources
of power to the circuit to eliminate the risk of electrical shock. This product must be
installed with an electrical interlock that prevents connection or disconnection in a
CAUTION
loaded condition.
RATINGS
NOTICE
The SP series is CSA listed for use in Non-Load Break applications up to 600A at
600VAC, 500 HP 3 phase at 480 VAC and 600 VAC. The SP devices are NOT
ADVERTENCIA
designed or listed for current interruption.
auxiliary/pilot contacts that make (close) when the locking collar is rotated after plug
insertion. The pilot contacts are designed for use in control circuit wiring of medium
DANGER
current switchgear, (see diagram of pilot circuit wiring). The SP pilots have a D300
rating as shown in Table 1. The phase contact is rated to withstand a 30 kA short
circuit with a current limiting fuse rating as shown in Table 2.
CAUTION
Table 1 - Auxiliary Contact Ratings
Device
AVISO
SP
Table 2 - Short Circuit Withstand Ratings
Device
SP – 600A
1 - Short Circuit Rating applies with fusing up to this amperage. Ratings are based on tests
performed with Mersen non-time Delay Current Limiting fuses.
2 - Tests performed with maximum allowable motor fusing sized per the 2008 NEC.
Table 3
B Strand
Die
2/0
KC12-2/0
3/0
KC12-3/0
4/0
KC12-4/0
250
KC12-250
300
KC12-300
350
KC12-350
400
KC12-400
500
KC12-500
600
KC12-600
750
KC12-750
H Strand (DLO) or Type W
1/0
KC12-2/0
2/0
KC12-3/0
3/0
KC12-4/0
4/0
KC12-250
262
KC12-350
300
KC12-400
313
KC12-400
350
373
KC12-500
444
500
KC12-700
535
KC12-700
646
KC12-750
777
1. Lugs to be crimped using either greenlee EK6IDL11 crimping tool, Dieless 120V CHRG or (unless noted
otherwise) DeWalt 20V MAX Cable Crimping tool with die (DCE300M2) 12-Ton using Greenlee KC12 hex
U-dies 2. The ground conductor for the CS1000 series devices shall be limited to a maximum size of 1/0 AWG
3. Intended to be wired with conductors rated to 90°C or higher
4. Auxiliary contacts will work with 12-14 AWG.
INSTALLATION
SP devices should be installed by qualified electricians in accordance with all
applicable local and national electrical codes.
Before installing, verify the power is off and the product ratings are appropriate for
WARNING
the application. Ensure the conductors meet code requirements and are within the
DANGER
wiring terminal capacities noted in Table 3.
CAUTION
NOTICE
ADVERTENCIA
DANGER
CAUTION
AVISO
NOTICE: Ensure the plug and its flexible cable do not exert a significant force or a
constraint on the receptacle.
Wiring of the pilot contacts
The SP auxiliary/pilot contact leads of each device should be wired in series within
the power control circuit. A typical pilot circuit wiring diagram is shown below.
Wiring of the main conductor
Use a flexible cable between 2 /0 and 777 MCM. Threaded lugs have integral
threads that screw into the terminals. The threaded lug should be tightened until
the tapered section is secured in solid contact with the terminal. Crimped lugs are
secured with M12 bolts that should be tightened to approximately 30 ft-lb (40 N.m.)
with a 3/4" (19 mm) wrench. Apply a torque of 30ft-lbs (40 N.m.) to the lugs with a
3/4" (19mm) wrench. Lugs that are to be crimped with Greenlee EK61DL11 crimping
tool shall have 1 crimp applied. Lugs that are to be crimped using the DeWalt 12-ton
tool shall have 2 crimps applied. On the threaded lugs do not crimp past the line.
NOTICE: To avoid transmitting torque to the device moldings when securing the
lugs, hold the terminal in place with a 24 mm wrench (flats are provided).
Hole Pattern for Custom Mounting
NOTICE: In order to maintain IP66/IP67 protection in custom 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.
Alternatively, four blind holes can be drilled and threaded to accommodate #8-32 x
5/8" mounting screws. The hole depth must be sufficient to achieve adequate gasket
compression.
Achieving rated watertightness
Rated IP66 /IP67 watertightness to is achieved when the plug and receptacle are
mated. When disconnected, the receptacle cap must be fully inserted with the slot
in the cap aligned with the protruding 'button'. The plug cap must be pressed firmly
into place.
NOTICE: Proper steps must be taken to maintain watertightness at threaded
connections on the plug handles or at the junction box. The use of a sealer tape is
recommended.
Attaching the handle
Insert cable through cable gland and handle before tightening the phase conductor.
Assemble handle with the screws and gasket supplied, (use short screws for inlets,
long screws for receptacles) and tighten cable gland with an appropriate tool.
MELTRIC ®
NOTICE:
Attaching the metal angle (if required)
Attach receptacle or inlet to metal angle using the screws and gasket supplied, (use
short screws for inlets, long screws for receptacles).
ground. Apply a torque of 17 in-lbs (2 N.m.) to each screw.
Assembly of the plug/inlet cap
Attach the cap to the plug /inlet by retaining the end of the chain under one of the
mounting screws.
Gasket
In order to achieve rated watertightness, the flat black gasket must be installed
between the inlet or receptacle and the panel or accessory to which itis attached.
When assembling the inlet or receptacle to the side of an enclosure, the isolating
ring must be positioned as indicated on Figure 1.
A: Color-coded ring
B: Isolating ring
C: Flat color-coded gasket
Rated current and voltage markings
It is essential to indicate the current and voltage of the main circuit on the supplied
stickers. Apply the stickers on or adjacent to the product so they can easily be seen.
OPERATION
To ensure safe and reliable operation, MELTRIC ® plugs and receptacles must be
used in accordance with their assigned ratings.
SP devices can only be used in conjunction with mating receptacles or plugs
WARNING
manufactured by MELTRIC ® or another licensed producer of products bearing the
DANGER
technology trademark.
CAUTION
NOTICE: Do not attempt to operate the SP device until the receptacle is mounted.
The mounting bolts must be in place to maintain alignment of components and
NOTICE
compression against the panel or handle is required to maintain assembly.
ADVERTENCIA
SP series plugs and receptacles feature different mechanical keying of L1, L2,
L3, N, and G. Mating plug /receptacle combinations are color coded for easy
DANGER
identification.
CAUTION
SP series plugs and receptacles are not intended to be connected or disconnected
AVISO
under load. The pilot circuit must be used to control the power circuit.
WARNING
The pilot circuit can only be turned 'on' when the plug is engaged and the plug
can only be removed when the pilot curcuit is in the 'off' position.
DANGER
MELTRIC ® recommends the following connection sequence: Ground, Neutral, Phase
CAUTION
1, Phase 2, Phase 3.
NOTICE
Connection
ADVERTENCIA
Insert the plug straight into the receptacle until a
DANGER
'click' is heard. Figure 2 The plug and its flexible
cable must not exert force on the receptacle.
CAUTION
AVISO
Pull on the plug to make sure it is properly latched
in the receptacle. Figure 3. A small rotation of the plug,
in either direction, engages the locking finger on
the receptacle to prevent any further rotation.
To close the pilot circuit and mechanically lock the plug
into the receptacle, turn the ring on the receptacle until the
"1" lines up with the arrow across from the release button.
Figure 4.
Do not attempt to turn the ring towards "1" when there is no
plug engaged. Defeating the mechanical lock could create a
potentially hazardous condition if energized under load.
Disconnection
To open the pilot circuit and unlock the plug, turn the ring back until the "0" is
aligned with the arrow. Figure 5. This action signals the controller to switch off the
power and unlocks the plug. To remove the plug, press firmly on the latch release
button and simultaneously pull on the plug. A slight rotation of the plug may be
required before it can be removed.
MAINTENANCE
WARNING: Before inspecting, repairing, or maintaining MELTRIC ® products,
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.
• Verify that the weight of the cable is supported by the strain relief mechanism
and not by the terminal connections.
• Check the IP gaskets for wear and resiliency. Replace as required.
• Verify the electrical continuity of the ground circuit.
• Check the contact surfaces for cleanliness and pitting.
Use a clean cloth to rub off deposits of dust or similar foreign materials on the
contacts and the plug interiors. Sprays should not be used, as they tend to collect
dirt. If any significant pitting of the contacts or other serious damage is observed, the
device should be replaced.
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 asso-
ciated with the loss of production, work, profit, or any other kind of financial loss
incurred by the customer.
MELTRIC ® Corporation shall not be held liable when its products are used in con-
junction with products not bearing the
MELTRIC products in conjunction with mating devices that are not marked with the
technology trademark shall void all warranties on the product. For the lat-
est revision of our documents, visit meltric.com.
MELTRIC Corporation is an ISO 9001 certified company. Its products are designed,
manufactured and rated in accordance with applicable UL, CSA and IEC standards.
MELTRIC designs and manufactures its products in accordance with Marechal
keying standards established to ensure intermatablility with similarly rated products
manufactured by Marechal Electric Group.
A manufacturer of products using Marechal
There are inherent dangers associated with
electrical products. Failure to follow safety
precautions can result in serious injury or death.
120VAC
240VAC
.6A
Rating Fuse
30 kA @ 600 VAC
Color
black
orange
purple
yellow
white
red
blue
brown
green
black
black
orange
purple
yellow
red
blue
blue
dieless only
brown
dieless only
pink
pink
black
dieless only
L1
L2
L1
L2
L1
L2
L1
L2
1.67"
threaded lugs are required for use with handles.
1
4
5
A COMPANY OF MARECHAL ELECTRIC
The SP receptacle is provided with two
WARNING
DANGER
CAUTION
NOTICE
480VAC
ADVERTENCIA
.3A
DANGER
CAUTION
AVISO
Strip mm
Strip inches
23
0.91
28
1.10
28
1.10
33
1.30
32
1.26
36
1.42
40
1.57
40
1.57
43
1.69
45
1.77
23
0.91
28
1.10
28
1.10
33
1.30
32
1.26
36
1.42
36
1.42
40
1.57
40
1.57
43
1.69
43
1.69
43
1.69
45
1.77
55
2.17
L3
N
L3
N
L3
N
L3
N
2"
1.67"
ADVERTENCIA
B
A
technology trademark. The use of
technology
®
600VAC
-
Type
1
Class L 1400A
Straight w/
Terminal
45-4A50C
45-4A70C
45-4A70C
45-4A95C
45-4A12C
45-4A15C
45-4A18C
45-4A18C
45-4A24C
45-4A30C
45-4A50C
45-4A70C
45-4A70C
45-4A95C
45-4A12C
45-4A15C
45-4A15C
45-4A18C
45-4A18C
45-4A24c
45-4A24C
45-4A24C
45-4A30C
45-4A40C
P1
P2
P1
P2
Ø.201 thru or
tap for 10-32
Connect the metal angle to
WARNING
DANGER
CAUTION
NOTICE
DANGER
CAUTION
AVISO
C
For safety,
WARNING
DANGER
CAUTION
NOTICE
ADVERTENCIA
2
DANGER
CAUTION
AVISO
3
Latch
Release
Button
INSSP H
-
2
Straight
Threaded
45-4A50D
45-4A70D
45-4A70D
45-4A95D
45-4A12D
45-4A15D
45-4A18D
45-4A18D
45-4A24D
45-4A30D
45-4A50D
45-4A70D
45-4A70D
45-4A95D
45-4A12D
45-4A15D
45-4A15D
45-4A18D
45-4A18D
45-4A24D
45-4A24D
45-4A24D
45-4A30D
45-4A40D
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INSSP H
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