WEG W21 - Page 2

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5. Maintenance
Before any service is performed, ensure that motor
is at standstill, disconnected from the power supply
and protected against accidental energization. Even
when the motor is stopped, dangerous voltages may be
present in space heater terminals.
Motor disassemble during the warranty period must be
performed by a WEG authorized service center for Explosive
Atmospheres only.
In “Ex e” motors application, the thermal protection device, in
case of overload or locked rotor, must actuate with time delay
according to the current and track the external power cables.
The “t
E
” time indicated in the motor nameplate can not be
exceeded. The “Ex e” motors, submitted to acceleration time
conditions greater than 1,7 x “t
E
” time, must be protected with
protection devices against overcurrent.
Motors fitted with Automatic Thermal Protectors will
reset automatically as soon as the motor cools
down. Thus, do not use motors with Automatic
Thermal Protection in applications where the auto-
reseting of this device may cause injuries to people or
damage to equipment. If the Automatic Thermal Protector
trips, disconnect the motor from the power supply and check
the cause why the thermal protector trips.
For more information about the use of variable frequency drives,
you must follow the instructions in the motor manual in the
website and in the manual of the variable frequency drive.
For terminal box cover mounting, please follow the tightening
torques indicated on Table 1 for fixing bolts.
In case of replacement of a fixing bolt, it is necessar y to keep its
Tab le 4 - Maximum clearance between terminal box and
terminal box cover for flameproof motors
Notes:
1) The qua ntity a nd type of t herma l protecti ons insta lled in t he motor ar e
infome d in the add itiona l namepl ates incl uded on i t.
2) In case of c alibr ated ther mal prote ction (fo r exampl e, Pt-100), the
monitor ing syste m must be set at t he oper ation tem peratu re indic ated
on Table 3.
Component
Classified area
marked on
nameplate
Classified area
where product
will be installed
Maximum operating
temperature (°C)
Alarm Tripping
Winding
Ex d Ex d 130 150
Ex n Ex n 130 155
Ex t Ex t 120 140
Ex e Ex e - 110
Ex n + Ex t
Ex n 140 155
Ex t - 140
Ex d + Ex t
Ex d 140 150
Ex t - 140
Class I Div. 1 Class I Div. 1 130 150
Class I Div. 2 Class I Div. 2 130 155
Class II Div. 1 Class II Div. 1 120 140
Bearings All All 110 120
dimensions and quality of material. For flameproof motors, the
yield stress of the fastener elements of motor and terminal
boxes enclosures must be at least equal to class 12.9 for
carbon steel bolts and class A2-70 or A4-70 for stainless steel
bolts.
Motors which may have a potential risk of electrostatic charge
accumulation, supplied duly identified, must receive proper
cleaning and maintenance interventions, i.e. with the use of a
damp cloth, avoiding electrostatic discharges.
For Protection by Enclosure motors (group III), the maximum
permissible dust layer on the motor enclosure is five millimeters
(5 mm).
Regularly inspect the operation of the motor,
according to its application, and ensure a free air
flow. Inspect the seals, the fastening bolts, the
bearings, the vibration and noise levels, the drain
operation, etc. The lubrication interval is specified on motor the
nameplate.
6. Additional information
8. Certificates
A list of the motors for each Type of Protection, their certificates
and markings is shown below:
Model Marking Certificate Nº
UL Certificates:
Div 1 - Hazardous Location
Frame sizes 143-326,
three-phase
Class I, Div 1,
Groups C and D, T4
File E87848 - Sec 1
Class II, Div 1,
Groups F and G, T4
Frame sizes 364-587,
three-phase
Class I, Div 1,
Groups C and D, T3C
File E87848 - Sec 2
Class II, Div 1,
Groups F and G, T3C
Frame sizes 56 and 61
three-phase/single phase
Class I, Div 1,
Group D, T3B
File E87848 - Sec 3
Frame size 61,
three-phase/single phase
Class I, Div 1,
Group D, T3C
File E87848 - Sec 4
Frame sizes 254-326,
three-phase
Class I, Div 1, Groups C and D, T4
File E87848 - Sec 5
Class II, Div 1, Groups F and G, T4
Frame sizes 364-587,
three-phase
Class I, Div 1, Groups C and D, T4
File E87848 - Sec 6
Class II, Div 1, Groups F and G, T4
CSA Certificates:
Div 1 - Hazardous Location
Frame sizes 143-587,
three-phase
Class I, Div 1,
Groups C and D, T3C
1629892
Class II, Div 1,
Groups F and G, T3C
Frame size 56
three-phase/single phase
Class I, Div 1,
Groups C and D, T3C
File LR 50962
Class II, Div 1,
Groups F and G, T3C
Frame size 61
three-phase/single phase
Class I, Div 1,
Group D, T3C
File LR 50962
Frame size 56
three-phase/single phase
Class I, Div 1,
Group D, T3C
Div 2 - Hazardous Location
Frame sizes 56, 143-587,
three-phase (W21)
Class I, Div 2, Groups A, B, C and
D, T4 - T2D
1619832
Class II, Div 2,
Groups F and G, T4 - T2D
Frame sizes 143-587,
three-phase (W22)
Class I, Div 2,Groups A, B, C and
D, T5 - T2B
2156668
Class II, Div 2, Groups F and G,
T6 - T3C
Frame sizes 5006-9610,
three-phase (HGF)
Class I, Div 2, Groups A, B, C and
D, T3 or T3C
1959652
Class II, Div 2, Groups F and G,
T3 or T3C
Frame sizes 5009/10-
7008/09, three-phase (W50)
Class I, Div 2, Groups A, B, C and
D, T3 or T3C
Class II, Div 2, Groups F and G,
T3 or T3C
Frame sizes 447/9 to 588/9,
three phase
(W22 Medium voltage)
Class I, Div 2, Groups A, B, C
and D, T3A, T3B, T2D, T4A or T5
Class II, Div 2, Groups F and G,
T3A, T3B, T2D, T4A or T5
Frame sizes 5010, L5010,
L5810 and L6808/09,
three-phase (W40)
Class I, Div 2, Groups A, B, C and
D, T3, T2C and T2D
4. Operation
During operation, do not touch the non-insulated
energized parts and never touch or stay too close to
rotating parts.
Ensure that the space heater is always OFF during
the motor operation.
The rated perfomance values and the operating conditions are
specified on the motor nameplate. The voltage and frequency
variations of the power supply should never exceed the limits
established in the applicable standards.
Occasional different behavior during the normal operation
(actuation of thermal protections, noise level, vibration level,
temperature and current increase) must always be assessed
by qualified personnel. In case of doubt, turn of f the motor
immediately and contact the nearest WEG service center.
Do not use roller bearings for direct coupling. Motors fitted
with roller bearings require a minimum radial load to ensure a
proper operation.
For motors fitted with oil lubrication or oil mist systems, the
cooling system must be ON even after the machine is OFF and
until the machine is at complete standstill.
In case of failure in the lubrication and/or cooling system, turn
the motor OFF immediatly.
After complete standstill, the cooling and lubrication systems
(if any exist) must be switched OFF and the space heaters (if
available) must be switched ON.
In case of doubts, turn the motor OFF immediately and
contact the nearest WEG authorized service Center for
explosive atmospheres.
For Flameproof or Protection by Enclosure motors, only
open the terminal box and/or disassembly the motor when
the motor surface temperature is at ambient temperature.
For the W50 and HGF motor lines provided with a xial fans,
the motor and the axial fan have different markings for
indicating the direction of rotation for prevent incorrect
assembly.
The axial fan must be assembled so that the indicative
arrow for direction of rotation is always visible, viewing the
non-drive end side. The marking indicated on the axial fan
blade, CW for clockwise direction of rotation or CCW for
counterclockwise direction of rotation, indicates the
direction of rotation of the motor viewing the drive end
side.
Motors with degree of protection greater than IP55 are supplied
with a rust inhibitor on joints and fixing bolts. Before assembly
the components with machined surfaces (for example, terminal
box cover of Flameproof motors), clean these surfaces and
apply a new layer of this product.
For Flameproof motors joints only the following products can be
used: Lumomoly PT/4 (manufacturer: Lumobras – for ambient
temperature ranging from -20 °C to +80 °C) or Molykote DC 33
(manufacturer: Dow Corning – for ambient temperature ranging
from -55 °C to +80 °C). For motors with other types of
protection, use Loctite 5923 (manufacturer: Henkel) on joints.
For explosion-proof motors special care should be taken with
For special applications and operating conditions (for example,
smoke extraction motors, totally enclosed air over (TEAO),
motors for high thrust applications, motors with brake, motors
with encoder) refer to the dedicated manual supplied with the
equipment, or the manual 50034162 available in the website or
contact WEG.
When contacting WEG, please, have the full description of the
motor at hand, as well as the serial number and manufacturing
date, indicated on the motor nameplate.
7. Warranty terms
WEG Equipamentos Elétricos S/A, Motors Business Unit (“WEG”),
offers warranty against defects in workmanship and materials
for its products for a period of 18 months from the invoice date
issued by the factory or distributor/dealer, limited to 24 months
from the date of manufacture.
Motors of the HGF Line are covered for a period of 12 months
from the invoice date issued by the factory or distributor /
dealer, limited to 18 months from the date of manufacture.
The paragraphs above contain the legal warranty periods.
If a warranty period is defined in a different way in the
commercial/technical proposal of a particular sale, that will
supersede the time limits set out above.
The warranty periods above are independent of the product
installation date and the startup.
If any defect or abnormal occurrence is detected during
machine operation, the customer must immediately notify WEG
in writing about the occurred defect, and make the product
available for WEG or its Authorized Ser vice Center for the period
required to identify the cause of the defect, check the warranty
coverage, and perform the proper repairs.
In order for the warranty to be valid, the customer must be sure
to follow the requirements of WEG technical documents,
especially those set out in the product Installation, Operation
and Maintenance Manual, as well as the applicable standards
and regulations in force in each country.
Defects arising from the inappropriate or negligent use,
operation, and/or installation of the equipment, non-execution
of regular preventive maintenance, as well as defects resulting
from external factors or equipment and components not
supplied by WEG, will not be covered by the warranty.
The warranty will not apply if the customer at its own discretion
makes repairs and/or modifications to the equipment without
Product
line
Frame size
Flat joint Cylindrical joint
Gap
(max)
Lenght
(min)
Gap
(max)
Lenght
(min)
W21Xd
IEC 90 to 355
NEMA 143 to 586/7
0.05 mm
Under
request
Not available
W22Xd
IEC 71 and 80 Not available 0.15 mm 12.5 mm
IEC 90 to 355
NEMA 143 to 586/7
0.075
mm
6 mm 0.15 mm 19 mm
prior written consent from WEG.
The warranty will not cover equipment, components, parts and
materials whose lifetime is usually shorter than the warranty
period. It will not cover defects and/or problems resulting from
force majeure or other causes not imputable to WEG, such as,
but not limited to: incorrect or incomplete specifications or data
supplied by the customer; transportation, storage, handling,
installation, operation and maintenance not complying with the
provided instructions; accidents; defects in the construction
works; use in applications and/or environments for which the
machine was not designed; equipment and/or components not
included in the scope of WEG supply. The warranty does not
include disassembly services at the buyer’s premises, product
transportation costs and travel, lodging and meal expenses for
the technical staff of the Ser vice Centers, when requested by
the customer.
The services under warranty will be provided exclusively at
WEG authorized Service Centers or at one of its manufacturing
plants. Under no circumstances will the warranty services
extend the equipment warranty period.
WEG’s Civil Liability is limited to the supplied product; WEG will
not be liable for indirect or consequential damages, such as
losses of profit and revenue losses and alike which may arise
from the contract signed between the parties.
the machined surfaces of the flame path. These surfaces must
be free of burrs, scratches, etc. that reduce the flame path
length and increase the gap. The gaps between terminal boxes
and the respective terminal box covers should not exceed the
values specified in Table 4.
For motors with permanent magnet rotor (lines W22
Quattro and W22 Magnet), the motor assembly and
disassembly require the use of proper devices due
to the attractive or repulsive forces that occur between
metallic parts. This job must be only performed by a WEG
Authorized service center specifically trained for such an
operation. People with pacemakers cannot handle these
motors.
The permanent magnets can also cause disturbances or
damages to other electric equipment and components
during maintenance.
1. Introduction
The installation, operation and maintenance of the motor must
be always performed by qualified and authorized personnel
using proper tools and methods and following the instructions
contained in the documents supplied with the motor.
The instructions presented in this document are valid for WEG
motors with the following characteristics:
g
Three-phase and single-phase induction motors (squirrel cage rotor);
g
Three-phase permanent magnet motors;
g
Three-phase hybrid motors (squirrel cage rotor +
permanent magnets);
These motors can be used in hazardous areas with the following
types of protection:
g
Increased Safety – “Ex e”;
g
Type of protection “n” – “Ex n”;
g
Flameproof – “Ex d” or “Ex de”;
g
Protection by Enclosure (combustible dust) - “Ex t”;
g
Class I Division 1;
g
Class I Division 2;
g
Class II Division 1;
g
Class II Division 2.
Details of motor marking may be found on nameplate and product
certification, which is part of the motor documentation. For
reference, this manual lists the certificate numbers for each type of
protection and their nameplate markings. Furthermore, the
applicable Standards may be found in the product certification and
at the “Installation, Operation and Maintenance Manual of Electric
Motors for Use in Explosive Atmospheres” – code 50034162. This
manual is available in the website www.weg.net
The obj ective of this ma nual is to provide impor tant information, which
must be considered during the shipment, storage, installation, operation
and mai ntenance of WEG motors. Therefore, we advise to make a
careful and detaile d reading of the instructions c ontained herein before
performing any inte rvention on the motor.
ENGLISH
The noncompliance with the instructions informed in this manual and
others mentioned in the website www.weg.net voids the product
warranty and may compromis e the type of prote ction of the motor and
still result in serious personal injuries and material damages.
Any com ponent adde d to the motor by the user, for
example, cable glands, thread plug, encoder, etc., must
meet the type of protection of the enclosure, the
“equipment p rotection l evels” (EPL) an d the degree of protection
of the motor, according to the Standards indicated in the product
certification.
Special Conditions for Safe Use
The sign “X” ad ded to the cer tificate number, informed
on the na meplate of the motor, indicate s that the
equipment demands special conditions for installation,
operation and/or maintenance, being those described in the
certificate and the motor documentation.
For referenc e, the chapter 8 lists t he certificate number s for each
type of prote ction and their nameplate markings.
The noncompliance with these requirements compromises the
safet y of the product and of the ins tallation.
The correct classification of the ins tallation area and ambient
characteristics is user’s responsibility.
Electric motors have energized circuits and exposed rotating
parts whic h may cause injuries to people.
2. Shipment, storage and handling
Check the condition s of the motor right after re ceiving. When any
damag e is noticed, this must be repor ted in writing to th e transportation
company, and immediately communicated to the insurance company
and to WEG. I n this case, no installation job can be starte d before the
detected problem has been solved.
Check if the nameplate data match the invoice data, the environment
conditions where the motor will be installed, the type of protection and
EPL of the motor. If the motor is not immediately installed, it must be
stored in a clean a nd dry room protected against dust, vibrations, gases
and cor rosive agents, with relative humidi ty not over 60%.
In order to prevent water condens ation within th e motor during the
storage period, it is recomme nded to keep the space heater ON (i f
available). In ord er to prevent oxidation of the bear ings and ensu re an
even distribu tion of the lubricant, rotate the motor shaf t at least once a
month (at least five turns), al ways leaving it i n a different position. For
bearings with oil mist lubrication systems, the moto r must be stored
horizo ntally with ISO VG 68 oil in the bearing, wi th the amount indicate d
in the motor manual available in the website and the shaf t must be
turned every week. If the motors are stored for more than two years, it is
recommended to chan ge the bearin gs, or to remove, wash, inspe ct
and relubric ate them before th e motor is starte d. After this storage
period, it is also reco mmended to cha nge the start capac itors of single -
phase motors since they loss their ope rating characteristics.
Always handle the motor carefull y in order to prevent
impac ts and damages to the b earings an d always install
the shaft transportation/locking device (if supplied)
when transporting the motor.
Use onl y the eyebolts to lift the motor. However these eyebolts a re
designed for the motor weight only. Thus never u se these eyebolts
to lift the motor with additional loads coupled to it.
The lif ting eyebolts of the terminal box, fan cove r, etc., ar e
intended to handle only these parts when disassembled from the
motor. Additional information regarding the maximum allowable
angle-of-inclination is indicated in the general manual available on
the website www.weg.net.
Periodical ly and mainly b efore the initial star-up, measure the insulation
resistance of the motor winding. Check the recommended values an d
the measuring procedures in the website.
3. Installation
During the in stallation, the motors m ust be protected
against accidental energization.
Check the motor direction of rotation, turning it without
load be fore it is coupled to the load.
For power cables, switching and protection devices dimensioning,
consider the rated motor current, the service factor, and the cable
length, among others. For motors without terminal block, insulate
the motor terminal cables by using insulating materials that are
compatible with the insulation class informed on the nameplate.
The minimum insulation distance between the non-insulated live
parts themselves and between live parts and the grounding must
meet the applicable standards and regulations for each country.
Remove the transportation devices and shaft locking device (if supplied)
before starting the motor installation.
Motors must be only installed in places compatible with their mounting
features and in applications and environments for which they are
intended. It must be respected the typ e of protection and the EPL of th e
motor, according to the c lassification of the area where the motor will be
installed.
The motors with feet must be installed on bases duly planned in order to
prevent vibrations and assure per fect alignment. The motor shaft must
be properly aligned with the shaft of the driven machine. Incorrect
alignment, as well as im proper belt te nsion, will ce rtainly da mage the
bearings, re sulting in excessive v ibrations and even causing the shaf t
rupture. The admissible shaft rad ial and axial loads indicated in the
general manual of the website must be respected. Use flexible coupling
whenever possible.
When motors are fitted wi th oil lubricated bea rings or oil mist lubr ication
systems, connect the cooling and lubrication tubes (if available).
For oil lubricated bearing s, the oil level must be in the center of the sight
glass.
Remove the corrosion p rotection grease from the shaf t end and flange
only right before the motor installation.
Unles s specified otherwise in th e purchase ord er, WEG motors are
dynamically balanced w ith “half key” and witho ut load (uncoupled). The
driving ele ments, such as pulleys, couplings, etc., must be balance d
with “half key” before they are mou nted on the shaf t of the motors.
The motor must a lways be positione d so the drain hole is
at the lowest position.
Motors supplied with rubber drain plugs leave the
factory in the clos ed position and mus t be opened periodicall y to
allow the exit of c ondensed wa ter. For environments w ith high
water condensation levels and motor with degree of pro tection
IP55, the drain plug s can be mounte d in open position .
For motors with degr ee of protect ion IP56, IP65 or IP66, the dr ain
plugs m ust remain at closed posi tion, being opened only du ring
the motor maintenance procedures.
The drain sys tem of motors with Oil M ist lubrication system must
be conn ected to a specific collection system.
Take the required measures in order to ensure the
type of protection, the EPL and the degree of
protection indicated on the motor nameplate:
- unused cable inlet holes in the terminal boxes
must be properly closed with certified plugs;
- components supplied loose (for example, terminal boxes
mounted separately) must be properly closed and sealed;
The cable entries used must be fitted with components
(such as, cable glands and conduits) that meet the
applicable standards and regulations for each country. For
“Ex d” motors, the conduit entries are permitted only for
electrical equipment of group II.
The fixing elements mounted in the threaded through holes
in the motor enclosure (for example, the flange) must be
properly sealed, with the products listed in item 5, to
ensure the degree of protection indicated on the motor
nameplate.
The motor must be installed with overload protection devices.
These protection devices can be integrated to the motor (such
as thermistors in the windings) or external protection devices,
where the motor load is monitored by the nominal current. For
three-phase motors, it is recommended to install a phase failure
protection device. Delta connected motors must be protected
against phase fault. To do that, connect the overload relay in
series to the winding phases and set it to 0.58 times the rated
current.
For Class I & II Division 1 motors and/or motors driven by
frequency inverters, the use of the thermal protections is
mandatory (except for temperature classes T2B or higher).
For Division 2 or non-hazardous areas, the use of the thermal
protections is optional.
For flying leads motors, do not push the overlength
of leads into the motor in order to prevent that they
touch the rotor.
Ensure the correct operation of the accessories (brake, encoder,
thermal protection, forced ventilation, etc.) installed on the motor
before it is star ted. The temperature limits for alarm and tripping of
the thermal protection can be defined according to the application,
however they may not exceed the values shown in Table 3.
The drain plu gs of explosion proof motor s cannot be
removed during installation and maintenance
procedures.
Do not block the motor ventilation openings. Ensure a
minimum clearance of ¼ of the diameter of the air intake of the fan
cover fr om the walls. T he air used for cooling the motor mus t be at
ambient temperature, limited to the temperature range indicated
on the motor nam eplate (when not indicated,
-20 °C to +40 °C must b e considered).
Motor s installed outdo ors or in the ver tical position r equire the
use of ad ditional sh elter to prote ct them from water; for inst ance,
use of a dr ip cover.
To prevent accidents, ensure that the grounding connection has
been performed accor ding to the applicable sta ndards and that
the sha ft key has been well-fi xed fastene d before the motor is
started.
Conne ct the motor pr operly to the p ower supply by means of safe
and permanent contacts, always considering the data informed
on the na meplate, such as rated voltage, w iring diagr am, etc.
When using terminals, all wire s that form the s tranded ca ble must
be fastened inside the sleeve. The insulation of the accessories
cables must be kept up to 1 mm from the connector connection
point.
For power cables and grounding system conne ctions and terminal b ox
assembly, the tig htening torque s indicated on Tables 1 and 2 must be
respected.
Tab le 2 - Tightening torques for cable-glands and threaded plugs [Nm]
Thread Material M16 M20 M25 M32 M40 M50 M63 M80
Metric
Plastic 3 to 5 3 to 5 6 to 8 6 to 8 6 to 8 6 to 8 6 to 8 6 to 8
Metallic 40 to 5 0 40 to 50 55 to 70 65 to 80 80 to 100 100 to 120 115 to 140 160 to 190
Thread Material
NPT
1/2"
NPT
3/4"
NPT
1"
NPT
1 1/2"
NPT
2"
NPT
2 1/2"
NPT
3"
NPT
4"
NPT
Plastic - 5 to 6 6 to 8 6 to 8 6 to 8 6 to 8 6 to 8 6 to 8
Metallic 40 to 50 40 to 50 55 to 70 65 to 80 100 to 120 115 to 140 150 to 175 200 to 240
Signed for and on behalf of the manufacturer:
Milton Oscar Castella
Engineering Director
The manufacturer declares under sole responsibility that:
WEG electric motors and components used for
following motor lines:
W21, W22X…, W50X…, HGF and EX61G
……………
when installed, maintained and used in applications for which they
were designed, and in compliance with the relevant installation
standards and manufacturer’s instructions, comply with the provisions
of the following relevant European Union harmonisation legislation,
wherever applicable:
ATEX Directive 2014/34/EU
Machinery Directive 2006/42/EC***
EMC Directive 2014/30/EU (electric motors are considered
inherently benign in terms of electromagnetic compatibility)
The fulfilment of the safety objectives of the relevant European Union
harmonisation legislation has been demonstrated by compliance with
the following standards, wherever applicable:
EN 60079-0:2012 + A11:2013*/ EN 60079-1:2014*/
EN 60079-7:2007**/ EN 60079-15:2010*/ EN60079-31:2014*/
EN 60204-1:2006 + A1:2009 + AC:2010 and
EN 60204-11:2000 + AC:2010
* A comparison of the current version of the EN 60079-
0:2012+A11:2013, EN 60079-1:2014, EN 60079-15:2010 and EN
60079-31:2014 standards with the previous versions used by some
BASEEFA, CESI and PTB ATEX certificates shows that there are no
changes in the “state of the art” applicable to the product covered by
this Declaration of Conformity. The manufacturer hereby declares that
the ATEX Certificates issued by BASEEFA, CESI and PTB meet the
Essential Health and Safety Requirements of ATEX Directive 2014/34/
EU.
** Electric motors evaluated under Certificates Baseefa 15 ATEX 0152X,
Baseefa 15 ATEX 0237X, INERIS 14 ATEX 0001X and INERIS 16 ATEX
0036X comply with the EN or IEC 60079-7:2015 requirements.
*** Low voltage electric motors are not considered under the scope and
electric motors designed for use with a voltage rating higher than 1000V
are considered partly completed machinery and are supplied with a
Declaration of Incorporation:
The products above cannot be put into service until the
machinery into which they have been incorporated has been
declared in conformity with the Machinery Directive.
A Technical Documentation for the products above is compiled
in accordance with part B of annex VII of Machinery Directive
2006/42/EC.
We undertake to transmit, in response to a reasoned request
by the national authorities, relevant information on the partly
completed machinery identified above through WEG authorised
representative established in the European Union. The method
of transmission shall be electronic or physical method and shall
be without prejudice to the intellectual property rights of the
manufacturer.
The Quality System for the certificates is approved by Baseefa
under the Quality Assurance Notification Baseefa ATEX
5886 (WEG Equipamentos Elétricos S.A. and WEG Linhares
Equipamentos Elétricos S.A.) and Baseefa ATEX 3862
(WEGeuro – Industria Electrica S.A.).
CE marking in: 1996
Jaraguá do Sul, January 16
th
, 2017
EU DECLARATION OF CONFORMITY
Manufacturers:
WEG EQUIPAMENTOS
ELÉTRICOS S.A.
Av. Prefeito Waldemar Grubba,
3000 - CEP 89256-900
Jaraguá do Sul – SC – Brazil
www.weg.net
WEG (Nantong) Electric Motor
Manufacturing CO. LTD.
No. 128# - Xinkai South Road,
Nantong - Economic & Technical
Development - Zone, Nantong,
Jiangsu Province – China
www.weg.net/cn
WEG (Jiangsu) Electric
Equipment CO. LTD.
No. 15 Group, North City Street,
Dengyuan Community - Rugao
City, Jiangsu Province – China
www.weg.net/cn
WEG Linhares Equipamentos
Elétricos S.A.
Rod. BR 101, Km 161,5, s/n
Distrito Industrial Rio Quartel
Bairro Rio Quartel de Baixo
29915-500 – Linhares – ES – Brazil
www.weg.net
WEGeuro – Industria
Electrica S.A.
Rua Eng Frederico Ulrich, Apartado
6074
4476-908 – Maia – Porto –
Portugal
www.weg.net/pt
CONTACT PERSON: Luís Filipe
Oliveira Silva Castro Araújo
Authorised Representative in the
European Union
(Single Contact Point)
Branch – Santo Tirso:
Parque Industrial da Ermida
Avenida Luis Areal – Sta Cristina
do Couto
4780-165 – Santo Tirso –
Portugal
www.weg.net/pt
Tab le 1 - Tightening torques for fixing elements [Nm]
Type of
protection
of enclo-
sure
Component M4 M5 M6 M8 M10 M12 M14 M16 M20
Class I Div i-
sion 1
Class II Di vi-
sion 1
Class I
Zone 1
Terminal
Box
Cover
Class
8.8 /12.9
- 3,5 to 5 6 to 12 14 to 30 28 to 60 45 to 105
75 to
110
115 t o
170
230 to
330
Class
A2-70 /
A4-70
- 3,5 to 5 6 to 8,5 14 to 19 28 to 40 45 to 60
75 to
100
115 t o
170
225 to
290
Grounding 1,5 to 3 3 to 5 5 to 10 10 to 18 28 to 40 45 to 70 -
115 to
170
-
Terminal block pins 1 to 1,5 2 to 4 4 to 6,5 6,5 to 9 10 to 18
15,5 t o
30
-
30 to
50
50 to 75
Class I Div i-
sion 2
Class II Di vi-
sion 2
Class I
Zone 2
Terminal Box Cover - 3 to 5 4 to 8 8 to 15 18 to 30 25 to 40
30 to
45
35 to
50
-
Grounding 1,5 to 3 3 to 5 5 to 10 10 to 18 28 to 40 45 to 70 -
115 t o
170
-
Terminal block pins 1 to 1,5 2 to 4 4 to 6,5 6,5 to 9 10 to 18
15,5 t o
30
-
30 to
50
50 to 75
Terminal block
fixing bolts
- 3 to 5 5 to 10 10 to 18 28 to 40 45 to 70
75 to
110
115 t o
170
-
For further information about shipment, storage, handling,
installation, operation and maintenance of electric motors,
access the website www.weg.net.
Tab le 3 - Maximum operating temperature of the thermal protection