AUMA SQEx 05.2 User manual

Operation manual
Assembly and commissioning
Part-turn actuators
SQEx 05.2 – SQEx 14.2
SQREx 07.2 – SQREx 14.2
AUMA NORM (without controls)
FM/CSAEX version (Class/Division System)

Table of contents
2
Target group:
This document contains information for the mounting, commissioning, and maintenance staff.
Read operation manual first.
• Heed safety instructions.
• This operation manual is part of the product.
• Preserve operation manual during product life.
• Pass on operation manual to any subsequent user or owner of the product.
Table of contents
1 Safety instructions ........................................................................................................................................... 4
1.1 Prerequisites for safe handling of the product............................................................................................ 4
1.2 Range of application .................................................................................................................................. 5
1.3 Warnings and notes ................................................................................................................................... 5
1.4 References and symbols............................................................................................................................ 6
2 Short description.............................................................................................................................................. 7
3 Name tag ........................................................................................................................................................... 8
4 Transport and storage ..................................................................................................................................... 11
4.1 Transport.................................................................................................................................................... 11
4.2 Storage....................................................................................................................................................... 12
5 Assembly .......................................................................................................................................................... 13
5.1 Mounting position ....................................................................................................................................... 13
5.2 Handwheel fitting........................................................................................................................................ 13
5.3 Mount actuator to valve.............................................................................................................................. 13
5.3.1 Overview on coupling variants ........................................................................................................ 14
6 Electrical connection ....................................................................................................................................... 17
6.1 Basic information........................................................................................................................................ 17
6.2 Electrical connection KES-Ex d.................................................................................................................. 18
6.2.1 Open terminal compartment ........................................................................................................... 19
6.2.2 Cable connection ............................................................................................................................ 20
6.2.3 Close terminal compartment ........................................................................................................... 21
6.3 External earth connection .......................................................................................................................... 22
7 Operation .......................................................................................................................................................... 23
7.1 Manual operation ....................................................................................................................................... 23
7.1.1 Manual valve operation................................................................................................................... 23
7.2 Motor operation .......................................................................................................................................... 23
8 Indications (option) .......................................................................................................................................... 24
8.1 Mechanical position indication via indicator mark ...................................................................................... 24
9 Signals (output signals)................................................................................................................................... 25
9.1 Feedback signals from actuator ................................................................................................................. 25
10 Commissioning (basic settings) ..................................................................................................................... 26
10.1 End stops in part-turn actuator................................................................................................................... 26
10.1.1 Set end stop CLOSED .................................................................................................................... 27
10.1.2 Set end stop OPEN......................................................................................................................... 27
10.2 Open switch compartment ......................................................................................................................... 27

Table of contents
3
10.3 Torque switch setting ................................................................................................................................. 28
10.4 Limit switch setting ..................................................................................................................................... 29
10.4.1 Set end position CLOSED (black section) ...................................................................................... 29
10.4.2 Set end position OPEN (white section)........................................................................................... 30
10.5 Test run ...................................................................................................................................................... 30
10.5.1 Check direction of rotation .............................................................................................................. 30
10.5.2 Limit switch checking ...................................................................................................................... 31
10.6 Set mechanical position indicator............................................................................................................... 31
10.7 Close switch compartment ......................................................................................................................... 32
11 Commissioning (optional equipment settings) ............................................................................................. 33
11.1 Potentiometer............................................................................................................................................. 33
11.1.1 Potentiometer setting ...................................................................................................................... 33
11.2 RWG electronic position transmitter........................................................................................................... 33
11.2.1 Set measuring range....................................................................................................................... 34
11.3 EWG 01.1 electronic position transmitter................................................................................................... 34
11.3.1 Set measuring range....................................................................................................................... 35
11.3.2 Adjust current values ...................................................................................................................... 36
11.3.3 Switch on/off LED end position signaling........................................................................................ 37
11.4 Set intermediate positions.......................................................................................................................... 37
11.4.1 Set running direction CLOSE (black section).................................................................................. 38
11.4.2 Set running direction OPEN (white section).................................................................................... 38
12 Corrective actions ............................................................................................................................................ 39
12.1 Faults during operation/commissioning...................................................................................................... 39
12.2 Motor protection (thermal monitoring) ........................................................................................................ 39
13 Servicing and maintenance............................................................................................................................. 40
13.1 Preventive measures for servicing and safe operation .............................................................................. 40
13.2 Disconnection from the mains.................................................................................................................... 40
13.2.1 Disconnection from the mains with KES-d electrical connection .................................................... 41
13.3 Maintenance............................................................................................................................................... 41
13.4 Disposal and recycling ............................................................................................................................... 42
14 Spare parts list ................................................................................................................................................. 44
14.1 Part-turn actuators SQEx 05.2 – 14.2 KES-Exd / SQREx 05.2 – 14.2 KES-Exd....................................... 44
Index .................................................................................................................................................................. 46

Safety instructions
4
1Safety instructions
1.1 Prerequisites for safe handling of the product
Standards/directives The end user or the contractor must ensure that all legal requirements, directives,
guidelines, national regulations and recommendations with respect to assembly, elec-
trical connection, commissioning and operation are met at the place of installation.
Depending on the actuator version, this includes:
• Configuration guidelines for the respective fieldbus or network applications.
Proposition 65: This product may contain one or more substances or chemicals
known to the state of California to cause cancer.
Safety instructions/warn-
ings
All personnel working with this device must be familiar with the safety and warning in-
structions in this manual and observe the instructions given. Safety instructions and
warning signs on the device must be , observed to avoid personal injury or property
damage.
Qualification of staff Assembly, electrical connection, commissioning, operation, and maintenance must be
carried out exclusively by suitably qualified personnel having been authorized by the
end user or contractor of the plant only.
Prior to working on this product, the staff must have thoroughly read and understood
this manual and, furthermore, know and observe officially recognized rules regarding
occupational health and safety.
Work performed in potentially explosive atmospheres is subject to special regulations
which have to be observed. The end user or contractor of the plant are responsible for
respect and control of these regulations, standards, and laws.
Electrostatic charging Highly efficient charge generating processes (processes more efficient than manual
friction) on the device surface must be excluded at any time, since they will lead to
propagating brush discharges and therefore to ignition of a potentially explosive at-
mosphere. This safety instruction also applies to fireproof coatings or covers available
as an option.
Even when using a stem protection tube, no charge generating processes must take
place neither at the pertaining plastic protective cap nor at the V-seal. Otherwise po-
tentially explosive electrostatic discharges can occur. Therefore, only clean compo-
nents using a damp cloth for example.
Ignition hazards Gearings were subjected to an ignition hazard assessment in compliance with the cur-
rently applicable standard according to ISO 80079-36/ -37. Hot surfaces, mechanically
generated sparks as well as static electricity and stray electric currents were identified
and assessed as major potential ignition sources. Protective measures to prevent the
likelihood that ignition sources arise were applied to the gearboxes. This includes in
particular lubrication of the gearbox, the degree of protection of the enclosure protec-
tion and the warnings and notes contained in this operation manual.
Commissioning Prior to commissioning, imperatively check that all settings meet the requirements of
the application. Incorrect settings might present a danger to the application, e.g. cause
damage to the valve or the installation. The manufacturer will not be held liable for any
consequential damage. Such risk lies entirely with the user.
Operation Prerequisites for safe and smooth operation:
• Correct transport, proper storage, mounting and installation, as well as careful
commissioning.
• Only operate the device if it is in perfect condition while observing this manual.
• Immediately report any faults and damage and allow for corrective measures.
• Observe recognized rules for occupational health and safety.
• Observe the national regulations.

Safety instructions
5
• During operation, the housing warms up and surface temperatures >140°F
(60°C) may occur. To prevent possible burns, we recommend checking the sur-
face temperature using an appropriate thermometer and protective gloves, prior to
working on the device.
Protective measures The end user or the contractor is responsible for implementing required protective
measures on site, such as enclosures, barriers, or personal protective equipment for
the staff.
Maintenance To ensure safe device operation, the maintenance instructions included in this manual
must be observed.
Any device modification requires prior written consent of the manufacturer.
1.2 Range of application
AUMA part-turn actuators SQEx/SQREx are designed for the operation of industrial
valves, e.g. butterfly valves and ball valves.
The devices described below are approved for use in the potentially explosive atmos-
pheres in compliance with the classification (class, division) as specified on the name
tag.
Other applications require explicit (written) confirmation by the manufacturer.
The following applications are not permitted, e.g.:
• Industrial trucks
• Lifting appliances
• Passenger lifts
• Service lifts
• Escalators
• Continuous duty
• Buried service
• Continuous submersion (observe enclosure protection)
• Radiation exposed areas in nuclear power plants
No liability can be assumed for inappropriate or unintended use.
Observance of this operation manual is considered as part of the device's designated
use.
This operation manual is only valid for the clockwise closing standard version, i.e. the
driven shaft turns clockwise to close the valve. For counterclockwise closing version, a
supplement must be observed in addition to this operation manual.
1.3 Warnings and notes
The following warnings draw special attention to safety-relevant procedures in this op-
eration manual, each marked by the appropriate signal word (DANGER, WARNING,
CAUTION, NOTICE).
DANGER Indicates an imminently hazardous situation with a high level or risk.
Failure to observe this warning results in death or serious injury.
WARNING Indicates a potentially hazardous situation with a medium level of risk.
Failure to observe this warning could result in death or serious injury.
CAUTION Indicates a potentially hazardous situation with a low level of risk. Fail-
ure to observe this warning could result in minor or moderate injury. May
also be used with property damage.

Safety instructions
6
NOTICE Potentially hazardous situation. Failure to observe this warning could re-
sult in property damage. Is not used for personal injury.
The safety alert symbol warns of a potential personal injury hazard.
The signal word (here: DANGER) indicates the level of hazard.
1.4 References and symbols
The following references and symbols are used in this manual:
The term Information preceding the text indicates important notes and infor-
mation.
Information The term Information is part of an instruction and gives important notes and informa-
tion with regard to an action step.
Symbol for CLOSED (valve closed)
Symbol for OPEN (valve open)
Result of a process step
Describes the result of a preceding process step.
►Reference
Refers to the page number for further information. To return from the target to the pre-
vious view, it is possible to jump back to the previous view within PDF documents:
When using Adobe Acrobat via Menu | Previous view, or using the key combination
Alt + left.

Short description
7
2Short description
Part-turn actuator Definition according to EN 15714-2/EN ISO 5211 or EN ISO 22153/ MSS SP 101:
A part-turn actuator is an actuator which transmits a torque to the valve for less than
one full revolution. It need not be capable of withstanding thrust.
AUMA part-turn actuator Figure1: AUMA SQEx 10.2 part-turn actuator
[1]
[2]
[3]
[4]
[5]
[1] Motor [2] Electrical connection
[3] Handwheel [4] Valve attachment
[5] Mechanical position indicator
AUMA part-turn actuators SQEx/SQREx are driven by an electric motor. A handwheel
is available for setting and emergency operation.
Controls are required to operate or process the actuator signals.
Actuators without controls can be equipped with AUMA actuator controls at a later
date. For more information, please state our order number. The order number is avail-
able on the tame tag. (Refer to Name tag [}8].)
Switching off in end positions may be either by limit or torque seating.

Name tag
8
3Name tag
Figure2: Arrangement of name tags
[1]
[2][3][4]
[1] Motor name tag [2] Actuator name tag
[3] Additional tag, e.g. KKS tag (Power
Plant Classification System)
[4] Approval plate for explosion-proof ver-
sion
Actuator name tag
Figure3: Actuator name tag (example)
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[12]
[11]
[1] Name of manufacturer [2] Address of manufacturer
[3] Type designation [4] Order number (commission number)
[5] Serial number [6] Operating time
[7] Torque range in direction CLOSE [8] Torque range in direction OPEN
[9] Type of lubricant [10] Permissible ambient temperature
[11] Can be assigned as an option upon
customer request
[12] Enclosure protection

Name tag
9
Motor name tag
Figure4: Motor name tag (example)
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[13]
[12]
[11]
[1] Motor type [2] Motor article number
[3] Serial number [4] Type of current, mains voltage
[5] Rated power [6] Nominal current
[7] Type of duty [8] Enclosure protection
[9] Motor protection (temperature protec-
tion)
[10] Insulation class
[11] Speed [12] Power factor cos phi
[13] Mains frequency
Approval tag in explosion-proof version
Figure5: Approval plate in explosion-proof version
[1] [2]
[3]
[4]
[5]
[6]
[1] [2]
[9]
[7]
[8]
[10]
[1] Ex symbol [2] Number of test authority
[3] Classification [4] Protection type of housing
[5] Temperature class / max. surface tem-
perature
[6] Permissible ambient temperature
[7] Gas explosion protection [8] Dust explosion protection
[9] Number of certificate (for CSA only) [10] Threads for line bushings at electrical
connection
Table1: Classification
Division 1 Frequency or duration of occurrence of hazardous substances
Class I Gases, vapors or liquids (groups B, C, D)
Class II Combustible dusts (groups E, F, G)
Class II Fibers and flyings
Descriptions referring to name tag indications
Type designation Table2: Description of the type designation with the example ofSQEx 07.2-FA10
SQEx 07.2 -FA10
SQEx Type SQEx = Part-turn actuators for open-close duty
Type SQREx = Part-turn actuators for modulating duty
07.2 Size
This manual apples to sizes 05.2, 07.2, 10.2, 12.2, 14.2

Name tag
10
SQEx 07.2 -FA10
FA10 Flange size
Order number (commis-
sion number)
The product can be identified using this number and the technical data as well as or-
der-specific data pertaining to the device can be determined.
Please always state this number for any product inquiries.
Ex marking Table3: Description of the Ex marking with the example of /13B1111
Marking for the explosion protection (with the example of /13B1111)
/ 1 3 B 1 1 1 1
1Version (actuator with/without actuator controls)
1 = NORM (without actuator controls)
3Electrical connection
3 = Terminal connection type: KES-Ex d (terminal compartment Ex d flameproof enclosure)
B
Cover of control unit
B = without indicator glass
W = with indicator glass
1
Motor heater
1 = without motor heater
2 = with motor heater
1
Motor insulation class
1 = Insulation class F
2 = Insulation class H
1Not applicable
without signification
1Motor type
a = VD. or SD.: 3-phase AC motor
Actuator serial number Table4: Serial number until 2022, description with the example of 0520NS12345
05 22 NS12345
05 Positions 1+2: Assembly in week = week 05
22 Positions 3+4: Year of manufacture = 2022
NS12345 Internal number for unambiguous product identification
Table5: Serial number as of 2023, description with the example of 0000-00101-2023
00000-00101 - 2023
00000-00101 Serial number of sales article
11-digit internal number for unambiguous product identification
2023 Year of manufacture = 2023

Transport and storage
11
4Transport and storage
4.1 Transport
Actuator For transport to place of installation, use sturdy packaging.
DANGER Suspended load!
Death or serious injury.
àDo NOT stand below suspended load.
àAttach ropes or hooks for the purpose of lifting by hoist only to housing and NOT
to handwheel.
àActuators mounted on valves: Attach ropes or hooks for the purpose of lifting by
hoist to valve and NOT to actuator.
àActuators mounted to gearboxes: Attach ropes or hooks for the purpose of lifting
by hoist only to the gearbox using eyebolts and NOT to the actuator.
àRespect total weight of combination (actuator, gearbox, valve)
àSecure load against falling down, sliding or tilting.
àPerform lift trial at low height and eliminate any potential danger e.g. by tilting.
Figure6: Example: Lifting the actuator
Weights Table6: Weights for SQEx/SQREx part-turn actuators with 3-phase AC motors
Type designation
Actuator
Weight1) Weight with base and lever2)
approx. lbs [kg] approx. lbs [kg]
SQEx 05.2/
SQREx 05.2 64 [29] 75 [34]
SQEx 07.2/
SQREx 07.2 64 [29] 75 [34]
SQEx 10.2/
SQREx 10.2 75 [34] 84 [38]
SQEx 12.2/
SQREx 12.2 93 [42] 110 [50]
SQEx 14.2/
SQREx 14.2 112 [51] 137 [62]
1) Indicated weight includes AUMA NORM part-turn actuator with 3-phase AC motor, electrical connection in standard version, unbored
coupling and handwheel. For other output drive types, heed additional weights.
2) Indicated weight includes AUMA NORM part-turn actuator with 3-phase AC motor, electrical connection in standard version and hand-
wheel including base and lever. For other output drive types, heed additional weights.

Transport and storage
12
Table7: Weights for SQEx/SQREx part-turn actuators with 1-phase AC motors
Type designation
Actuator
Weight3) Weight with base and lever4)
approx. lbs [kg] approx. lbs [kg]
SQEx 05.2/
SQREx 05.2 73 [33] 86 [39]
SQEx 07.2/
SQREx 07.2 73 [33] 86 [39]
SQEx 10.2/
SQREx 10.2 86 [39] 95 [43]
SQEx 12.2/
SQREx 12.2 104 [47] 121 [55]
SQEx 14.2/
SQREx 14.2 123 [56] 148 [67]
4.2 Storage
NOTICE Danger of corrosion due to inappropriate storage!
àStore in a well-ventilated, dry room.
àProtect against floor dampness by storage on a shelf or on a wooden pallet.
àCover to protect against dust and dirt.
àApply suitable corrosion protection agent to uncoated surfaces.
Long-term storage For long-term storage (more than 6 months), observe the following points:
1. Prior to storage: Protect uncoated surfaces, in particular the output drive parts and
mounting surface, with long-term corrosion protection agent.
2. At an interval of approx. 6 months: Check for corrosion. If first signs of corrosion
show, apply new corrosion protection.
3) Indicated weight includes AUMA NORM part-turn actuator with 1-phase AC motor, electrical connection in standard version, unbored
coupling and handwheel. For other output drive types, heed additional weights.
4) Indicated weight includes AUMA NORM part-turn actuator with 1-phase AC motor, electrical connection in standard version and hand-
wheel including base and lever. For other output drive types, heed additional weights.

Assembly
13
5Assembly
5.1 Mounting position
When using grease as lubricant, the product described herein can be operated in any
mounting position.
When using oil instead of grease within the actuator gear housing, perpendicular
mounting position is specified whereby the flange is pointing downward. The type of
lubricant used is indicated on the actuator name tag (short designation F...= grease;
O...= oil).
5.2 Handwheel fitting
Figure7: Handwheel
[1]
[2] [3]
[4]
[1] Spacer [2] Input shaft
[3] Handwheel [4] Retaining ring
How to proceed 1. If required, fit spacer [1] onto input shaft [2].
2. Slip handwheel [3] onto input shaft.
3. Secure handwheel [3] using the retaining ring [4].
Information: The retaining ring [4] (together with this operation manual) is stored
in a weatherproof bag, which is attached to the device prior to delivery.
5.3 Mount actuator to valve
NOTICE Corrosion due to damage to paint finish and condensation!
àTouch up damage to paint finish after work on the device.
àAfter mounting, connect the device immediately to electrical mains to ensure that
heater minimizes condensation.
The actuator is mounted to the valve either using a coupling (standard) or via a lever.
A separate manual is available for actuator mounting to the valve when equipped with
base and lever.

Assembly
14
5.3.1 Overview on coupling variants
Design Figure8: Valve attachment via coupling
[1] [2] [3]
[1] Bore with keyway [2] Square bore
[3] Two-flat
Application • For valves with connections according to MSS SP 101 [ISO 5211]
• For rotating, non-rising valve stem
5.3.1.1 Mount actuator (with coupling)
Unbored couplings or couplings with pilot bore must be machined to match the valve
shaft prior to mounting the actuator to the valve (e.g. with bore and keyway, two-flat or
square bore).
Valve and actuator must be assembled in the same end position. As standard,
the actuator is supplied in end position CLOSED.
a) Recommended mounting position for butterfly valves: End position CLOSED.
b) Recommended mounting position for ball valves: End position OPEN.
We recommend applying liquid thread sealing material to the screws to avoid
contact corrosion.
Assembly steps 1. If required, move actuator to the same end position as the valve using the hand-
wheel.
2. Clean mounting faces, thoroughly degrease uncoated mounting surfaces.
3. Apply a small quantity of grease to the valve shaft [2].
4. Place coupling [1] onto valve shaft [2] and secure against axial slipping by using a
grub screw [3] or a clamping washer and a screw with curved spring lock washer
[4]. Thereby, ensure that dimensions X, Y or L are observed (refer to figure and ta-
ble Mounting positions for coupling).

Assembly
15
Figure9: Examples: Fit coupling
[1]
[2]
[3]
[4]
[1]
[2]
[1] Coupling [2] Valve shaft
[3] Grub screw [4] Clamping washer and screw with
curved spring lock washer
Figure10: Mounting positions for coupling
Table8: Mounting position of the coupling with fitting dimensions according to AUMA definition
Dimensions [mm] SQEx 05.2 SQEx 07.2 SQEx 10.2 SQEx 12.2 SQEx 14.2
MSS SP-101 FA05 FA07 FA05 FA07 FA10 FA10 FA12 FA12 FA14 FA14 FA16
X max. 3 3 3 3 3 4 4 5 5 8 8
Y max. 2 2 2 2 2 5 5 10 10 10 10
L max. 40 40 40 40 66 50 82 61 101 75 125
5. Apply non-acidic grease at splines of coupling (e.g. Gleitmo by Fuchs).
6. Fit actuator. If required, slightly turn actuator until splines of coupling engage.
Figure11: Fit actuator

Assembly
16
ðInformation: Ensure that the spigot (if provided) fits uniformly in the recess
and that the flanges are in complete contact.
7. If flange bores do not match thread: Slightly rotate handwheel until bores line up.
8. If the bores do not align even after rotating the handwheel, shift the actuator by
one tooth on the coupling, if required.
9. Fasten actuator with screws.
10. Fasten screws crosswise to a torque according to table.
Table9: Tightening torques for screws
UNC threads M threads Tightening torques for screws ft-lb [Nm]
Strength class A2–80 / A4-80
1/4” M6 7 [10]
4/16” M8 18 [24]
3/8” M10 35 [48]
1/2” M12 60 [82]
5/8” M16 148 [200]
3/4” M20 289 [392]

Electrical connection
17
6Electrical connection
6.1 Basic information
WARNING Electric shock due to presence of hazardous voltage!
Failure to observe this warning can result in death, serious injury, or property damage.
àThe electrical connection must be carried out exclusively by suitably qualified per-
sonnel.
àPrior to connection, observe basic information contained in this chapter.
Wiring diagram/terminal
plan
The pertaining wiring diagram/terminal plan is in the cover of the electrical connection.
NOTICE Valve damage when connecting to actuator controls!
àNORM actuators require actuator controls: Connect motor via actuator controls
only (reversing contactor circuit).
àObserve the type of seating specified by the valve manufacturer.
àThe torque switches also serve the purpose of valve overload protection and must,
therefore, also be connected for limit seating.
àObserve wiring diagram.
Delay time The delay time is the time from the tripping of the limit or torque switches to the motor
power being switched off. To protect the valve and the actuator, we recommend a de-
lay time < 50 ms. Longer delay times are possible provided the operating time, output
drive type, valve type, and the type of installation are considered. We require switch-
ing off the corresponding contactor directly by limit or torque switch.
Limit and torque switches Limit and torque switches can be provided as single, tandem, or triple switches. Only
the same potential can be switched on the two circuits (NC/NO contact) of each single
switch. If different potentials are to be switched simultaneously, tandem switches or
triple switches are required. When using tandem/triple switches:
• For signaling use the leading contacts TSC1, TSO1, LSC1, LSO1.
• For switching off use the lagging contacts TSC, TSO, LSC, LSO.
Current type, mains volt-
age, mains frequency
Type of current, mains voltage and mains frequency must match the data on the motor
name tag. Also refer to Chapter Motor name tag [}9].
Figure12: Motor name tag (example)
[1] [2] [3]
[1] Type of current [2] Mains voltage
[3] Mains frequency
Protection and sizing on
site
For short-circuit protection and for disconnecting the actuator from the mains, fuses
and disconnect switches have to be provided by the customer.
The current value for sizing the protection is derived from the current consumption of
the motor (refer to Name tag [}9]).).
We recommend adapting the switchgear sizing to the max. current (Imax) and to select
and set the overcurrent protection device in compliance with the indications in the
electrical data sheet.
Protection via thermal mo-
tor protection
According to FM approvals, thermal switches for thermal motor protection must be
connected to external controls for explosion-proof actuators.

Electrical connection
18
Safety standards Safety measures and safety equipment must comply with the respectively valid na-
tional on site specifications. All externally connected devices shall comply with the rel-
evant safety standards for the place of installation.
Connecting cables, cable
glands, reducers, blanking
plugs
• We recommend using connecting cables and connecting terminals according to
the rated current (IN). (Refer to Motor name tag [}9] or electrical data sheet.)
• Use suitable (voltage-proof) cables. Specify cables for the highest occurring rated
voltage.
• Use connecting cables, cable glands, reducers, blanking plugs with a minimum
temperature range of 165 °F (+80 °C).
• To avoid contact corrosion, we recommend the use of sealing agents for cable
glands and blanking plugs made of metal.
• For connecting cables exposed to UV radiation (outdoor installation), use UV re-
sistant cables.
• For the connection of position transmitters, screened cables must be used.
6.2 Electrical connection KES-Ex d
Figure13: KES electrical connection
[1]
[2]
[1] Terminal blocks [2] Connection frame
Short description KES plug-in electrical connection with terminal blocks for power and control contacts.
Cover in KES-Ex d version for terminal compartment in type of protection Ex d (flame-
proof enclosure) available.
Plug-in connection is made via the connection frame. Removing the cover is sufficient
for connecting the cables. The connection frame with the cable entries remains at the
device. The flameproof interior of the connected devices remains sealed.
Technical data Table10: KES electrical connection
Power contacts Control contacts
No. of contacts max. 3 + protective earth connector at
frame 50
Designations U, V, W, (PE) 1 to 50
Connection voltage max. 750 V 250 V
Rated current max. 25 A 10 A

Electrical connection
19
Power contacts Control contacts
Type of customer connection Screw connection
PE = Ring lug/U-bracket
Cage clamp,
Screw-type connection as an op-
tion
Connection diameter max. 6 mm2/10 mm22.5 mm2 flexible, 4 mm2 solid
6.2.1 Open terminal compartment
Figure14: Open terminal compartment
[1]
[2]
[3]
[4]
[5]
[6]
[1] Cover [2] Screws for cover
[3] O-ring [4] Blanking plug
[5] Cable gland [6] Connection frame
DANGER Electric shock due to presence of hazardous voltage!
Death or serious injury.
àDisconnect device from the mains before opening.
WARNING Risk of explosion in case of non-respect of the protection type!
Risk of death or serious injury!
àDuring commissioning, replace supplied blanking plugs by cable glands or blank-
ing plugs with appropriate Ex approval for the ignition type. Indications regarding
type and size of threads are specified on the approval tag. Rrefer to Approval tag
in explosion-proof version [}9].
NOTICE Corrosion caused by penetration of humidity when using inappropriate
cable glands!
àUse appropriate cable glands according to the NEMA type... enclosure protection
as specified on the name tag. Refer to Chapter Name tag [}8].

Electrical connection
20
Figure15: Name tag, example with enclosure protection (NEMA) type
For shielded cables: Use EMC approved cable glands.
How to proceed 1. Loosen screws [2] and remove cover [1].
2. Insert cable glands suitable for connecting cables.
3. Seal unused cable entries with suitable plugs.
6.2.2 Cable connection
Table11: Terminal cross sections and terminal tightening torques
Designation Terminal cross sections Tightening torques
Power contacts (U, V, W) max. 10 mm² (flexible or solid) 1.1 – 1.3ft-lb [1.5 – 1.8Nm]
PE connection max. 10 mm² (flexible or solid) 2.2 – 2.9ft- lb [3.0 – 4.0Nm]
Control contacts (1 to 50) max. 2,5 mm² (flexible) or
max. 4 mm² (solid) 0.4 – 0.6ft-lb [0.6 – 0.8Nm]
WARNING In case of a fault: Hazardous voltage while protective earth conductor is
NOT connected!
Risk of electric shock
àConnect all protective earth conductors.
àConnect PE connection to external protective earth conductor of connecting ca-
bles.
àStart running the device only after having connected the protective earth conduc-
tor.
CAUTION Without motor protection, impermissible high temperatures at the actua-
tor may occur: Ignition hazard, risk of explosion!
Risk of death, serious injury or motor damage. Our warranty for the motor will lapse if
the motor protection is not connected.
àConnect thermal switches to external controls.
How to proceed 1. Remove cable sheathing and insert the wires into the cable glands.
2. Fasten cable glands with the specified torque to ensure required enclosure protec-
tion. For shielded cables: Link the cable shield end via the cable gland to the
housing (grounding).
3. Strip wires.
4. Connect cables according to order-related wiring diagram.
5. WARNING!In case of a fault: Hazardous voltage while protective earth con-
ductor is NOT connected!
Firmly tighten protective earth to PE connection (symbol ).