Meltric DB Decontactors Manuel d'utilisateur télécharger pdf

GENERAL

DB Decontactor™ Series products are designed

to provide the safety and functionality of a switch

with the convenience of a plug & receptacle. They

can safely be used to make and break electrical

connections, even in overload situations and are

an approved ‘line of sight’ disconnect switch.

There are inherent dangers

associated with electrical

products. Failure to follow safety precautions can

result in serious injury or death. 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.

RATINGS

DB Decontactors are UL & CSA listed as switch rated

plugs and receptacles in accordance with UL Subject

2682, UL 1682 and CSA 22.2 No. 182.1. DB

Decontactors are listed as ‘Branch Circuit Disconnect

Switches’ and are also horsepower rated and listed

as ‘Motor Circuit Disconnect Switches’. The amperage,

voltage, horsepower, switch and environmental rat-

ings are indicated on the product labels.

All DB Decontactors are rated to make and withstand

short circuit currents of 100 kA or more. These ratings

are indicated in Table 1 along with the fusing upon

which they are based. Some DB devices are provided

with optional auxiliary contacts that make after and

break before the phase contacts. The ratings for

auxiliary contacts are shown in Table 2.

NSTALLATION

Decontactors should be installed by qualified

lectricians in accordance with all applicable

local and national electrical codes.

efore starting, verify that the power is off, that the

roduct ratings are appropriate for the application,

nd that the conductors meet code requirements and

are within the capacities of the terminals noted in

able 3.

eneral Notes & Precautions

1. Self-tapping screws are provided for use with

some polymeric accessories. High torque may

be required to drive them in. Once they are

seated, care should be taken in order to avoid

over-tightening them against the plastic material.

2. Various handles and cord grip options may be

used. These instructions are based on handles

provided with integral multi-layer bushing cord grips.

3. Wire strip lengths are indicated in Table 4. 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.

4. Wiring terminals are spring assisted to prevent

loosening due to wire strand settlement, vibration

and thermal cycling. NOTICE: Back out the terminal

screws on the receptacle (or inlet) far enough (but

not completely) to allow the conductors to pass.

Then insert the conductors fully into the proper

terminal. The terminal screws should not be

over-tightened. Appropriate tools and tightening

torques are indicated in Table 5.

Assembly for Mounted Receptacles (or Inlets)

Do not overtighten terminal or self-tapping

screws. Tighten screws to the proper torque to

ensure a secure connection.

In applications where DB receptacles (or inlets) are

mounted to wall boxes, panels or other equipment,

optimal operation is achieved when the device is

installed with the viewing window at the top.

Insert the cable or wires through the wall box and cut

to allow adequate length, strip the cable sheath as

esired, strip the individual wires to the lengths indicat-

d in Table 4, and twist the strands of each conductor

together. NOTICE: Back out the terminal screws on

he receptacle (or inlet) far enough (but NOT

completely) to allow the conductors to pass, insert

he conductors fully into their respective terminals and

and tighten the terminal screws to the torque

indicated in Table 5.

ssemble the receptacle (or inlet) and the color-coded

gasket to the box using the appropriate hardware.

ssemble the mating plug (or receptacle) to the cord

nd as indicated in the assembly instructions above

for in-line connections.

OTICE: Meltric threaded handles come with

tapered style threads. The use of fitting seal tape is

ecommended to maintain watertightness of all NPT

fittings and joints.

ssembly for Plugs (or Connectors)

When assembling male inlets (or female receptacles)

to handles with integral multi-layer bushing cord

grips, adjust the bushing diameter to fit the cable by

removing inner sections of it as required. Insert the

bushing into the strain relief, then insert the assembly

into the handle 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 the lengths indicated in Table 4

and twist the strands of each conductor together.

Do not overtighten terminal or self-tapping

screws. Tighten screws to the proper torque to

ensure a secure connection.

NOTICE: Back out the terminal screws on the

receptacle (or inlet) far enough (but NOT completely)

to allow the conductors to pass, insert the conductors

fully into their respective terminals and tighten the

terminal screws with the appropriate tool to the torque

indicated in Table 5.

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.

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 6.

Table 1 - Short Circit Make & Withstand Ratings

Device Rating Fuse Type*

DB30 - 30A 100kA @ 600 VAC RK1 125A

DB60 - 60A 100kA @ 600 VAC RK1 250A

DB100 - 100A 100kA @ 600 VAC RK1 250A**

* Rating applies with fusing up to this amperage. Ratings

are based on tests performed with Ferraz Shawmut non-time

delay current limiting fuses.

** The fusing used limits the 100kA rating to 60hp @ 600V,

40hp @ 480V, 20hp @ 240V & 208V. The device is rated for

10kA for all hp ratings where the 100kA rating does not apply.

able 3 - Wiring Terminal Capacity

(

in AWG)

Main Contacts Aux. Contacts

evice Minimum Maximum Maximum

DB30 - 30A 14 8 14

DB60 - 60A 8 3 14

DB100 - 100A 1/0 2/0 14

apacity is based on THHN wire sizes

Auxiliary contacts are optional and may not be on all products.

Compression

Nut

Handle

train

Relief

Receptacle

(or Inlet)

Bushing

Gasket

Table 5 - Terminal Screw Tightening Torques

Torque Required Screwdriver

Device in-lbs N-m Flathead type

DB30 - 30A 13 1.4 3 mm or 1/8” precision tip

DB60 - 60A 20 2.37 5 mm or 3/16” precision tip

DB100 - 100A 35 4.0 6 mm or 1/4” precision tip

Table 4 - Wire Strip Length – Dimensions A

Phase & Neutral Ground

Device Inches mm Inches mm

DB30 - 30A 3/4 19 1/2 12

DB60 - 60A 13/16 20 5/8 15

DB100 - 100A 1 3/8 35 1 3/16 30

4 x 0.196

(#9 or 5mm)

Table 2 - Auxiliary Contact Ratings

Device 120VAC 240VAC 480VAC 600VAC

DB30, DB60 6A 3A 1.5A 1.2A

eltric Corporation / 4640 Ironwood Drive Franklin, WI 53132

Tel. : 800 433 7642 / Fax : 414 817 6161 / e-mail : [email protected]

INSDB G

A manufacturer of products using Marechal technology

meltric.com

OTICE: In order to maintain the IP protection

rovided by DB models in custom installations,

watertight seals should be used under the heads of

he four mounting bolts and they must be retained by

a lock washer and nut on the inside of the box or

anel. Alternatively, four blind holes may be drilled

nd threaded to accommodate the mounting screws,

provided that the hole depth is sufficient to achieve

dequate gasket compression.

OPERATION

To ensure safe and reliable operation, Meltric

lugs and receptacles must be used in

accordance with their assigned ratings.

eltric plugs and receptacles can only be used in

conjunction with mating receptacles or plugs

anufactured by Meltric or another licensed producer

of products bearing the

technology trademark.

eltric plugs & receptacles are designed with different

eying arrangements, so that only plugs and receptacles

with compatible contact configurations and electrical

ratings will mate with each other.

Connection

First remove the lid on the receptacle by turning the

locking ring fully counterclockwise. The lid can then

be removed. For convenience it remains attached to

the receptacle by a wire.

To insert the plug into a receptacle, the arrow on the

plug casing is aligned with the left end of the viewing

window on the receptacle, Figure 1 . Push the plug

partially into the receptacle until it hits a stop then

rotate slightly clockwise. The plug is now in the rest

position with circuit open.

Push the plug straight into the receptacle until it is

held in place by the locking ring Figure 2 . The

electrical connection is now made as indicated by the

red color in the viewing window. IP67 watertightness

is achieved by fully rotating the locking ring in the

clockwise direction until the protruding lockout tab

completely clears the window shroud.

Disconnection

To break the connection, turn the locking ring fully

ounterclockwise. This will break the circuit and eject

he plug straight out to the rest or off position. The

plug contacts are deenergized at this point. To

emove the plug, rotate it counterclockwise (about

0°) until it can be withdrawn from the receptacle,

igure 3 . Insert the lid and rotate the locking ring

ully clockwise to provide IP67 protection to the

receptacle, Figure 4 . To attempt another

ngagement after disconnection, the plug

ust be returned to its rest position.

Achieving Ratings & Watertightness

Rated ingress protection is achieved when the plug

and receptacle are mated and the locking ring is fully

rotated in the clockwise direction. It can also be

achieved by the receptacle when the lid is inserted

and the locking ring is fully rotated in the clockwise

direction.

NOTICE: Proper steps must be taken to maintain

watertightness at NPT fittings on the plug handles

or at the junction box. Use of a sealer tape is

recommended.

Lockout Provisions

All DB plugs and receptacles are provided with

lockout provisions.

Plug Lockout

To prevent the DB plug from being inserted into any

DB receptacle place a padlock or a safety lockout

through the hole provided.

Receptacle Lockout

Insert the lid and fully rotate the locking ring clock-

wise. A padlock or safety lockout can then be inserted

in the hole on the locking ring.

Locking Plug and Receptacle in Closed Position

Deenergize electrical power to the receptacle

prior to punching out the knockout hole on the

receptacle locking ring.

To lock the plug and receptacle in the closed position

knock-out hole located on the receptacle locking

ring must first be opened with the help of a 1/4”

unch. When the plug and receptacle are engaged

nd the locking ring is fully rotated then the lockout

hole will have cleared the window shroud and a

adlock or safety lockout can be inserted.

Locking Plug and Receptacle in the Open or

arked Position

hen the plug is in the rest or off position the lockout

holes on the locking ring and plug can be aligned.

nsert a safety lockout device through both holes to

lock the unit in the parked position.

AINTENANCE

Before inspecting, repairing, or

aintaining Meltric products,

disconnect electrical power to the receptacle to

liminate the risk of electrical shock.

eltric products require little on-going maintenance.

However, it is a good practice to periodically perform

he 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 interi-

ors. 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 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

technology trademark. The

use of Meltric products in conjunction with mating

devices that are not marked with the

technology trademark shall void all warranties on the

product.

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 is also a member of BECMA, the international

Butt-contact Electrical Connectors Manufacturers’

Association. Like all members, Meltric additionally

designs and manufactures its products in accordance

with BECMA standards established to ensure inter-

matablility with similarly rated products manufactured

by other members.

Table 6 - Custom Mounting Dimensions

‘A’ ‘B’

Model Inches mm Inches mm

DB30 2.17 55 2.17 55

B60 2.68 68 2.59 66

B100 3.35 85 3.2 81

Lockout

oles

Locking

Ring

Lockout

Hole

INSDB G

DECONTACTORS

OPERATING INSTRUCTIONS

WARNING

www.becma.ch

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DECONTACTORS 1
DECONTACTORES 2

Résumé du contenu

Page 1 - DECONTACTORS

GENERALDB Decontactor™ Series products are designed to provide the safety and functionality of a switch with the convenience of a plug & receptacl

Page 2 - DECONTACTORES

GENERALLos productos DB de la serie Decontactor™ están diseña-dos para proveer la seguridad y funcionalidad de un inter-ruptor con la conveniencia de

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Meltric DB Decontactors Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Accessoires pour les appareils électriques Meltric DB Decontactors. Meltric DB Decontactors User Manual Manuel d'utilisatio

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