Stahl 8074/2 Series User manual

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Manual
Additional languages www.r-stahl.com
EN
Position Switches
Series 8074/2

2Position Switches
Series 8074/2
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Contents
1 General Information ............................................................................................3
1.1 Manufacturer .......................................................................................................3
1.2 Information about the Manual .............................................................................3
1.3 Further Documents .............................................................................................3
1.4 Conformity with Standards and Regulations .......................................................3
2 Explanation of the Symbols ................................................................................4
2.1 Symbols used in this Manual ..............................................................................4
2.2 Warning Notes ....................................................................................................4
2.3 Symbols on the Device .......................................................................................5
3 Safety Notes .......................................................................................................5
3.1 Storage of the Manual .........................................................................................5
3.2 Personnel Qualification .......................................................................................5
3.3 Safe Use .............................................................................................................6
3.4 Modifications and Alterations ..............................................................................6
4 Function and Device Design ...............................................................................7
4.1 Function ..............................................................................................................7
5 Technical Data ....................................................................................................8
6 Transport and Storage ......................................................................................21
7 Mounting and Installation ..................................................................................21
7.1 Dimensions / Fastening Dimensions .................................................................22
7.2 Mounting / Dismounting, Operating Position .....................................................23
7.3 Installation .........................................................................................................25
8 Commissioning .................................................................................................29
9 Maintenance, Overhaul, Repair ........................................................................29
9.1 Maintenance .....................................................................................................29
9.2 Overhaul ...........................................................................................................30
9.3 Repair ...............................................................................................................30
9.4 Returning the Device ........................................................................................30
10 Cleaning ............................................................................................................31
11 Disposal ............................................................................................................31
12 Accessories and Spare Parts ...........................................................................31

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General Information
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Position Switches
Series 8074/2
1 General Information
1.1 Manufacturer
R. STAHL Schaltgeräte GmbH
Am Bahnhof 30
74638 Waldenburg
Germany
Phone: [phone]
Fax: [phone]
Internet: www.r-stahl.com
E-Mail: [email protected]
1.2 Information about the Manual
ID-No.: 257036 / 807460300070
Publication Code: 2018-07-04·HB00·III·en·03
The original instructions are the English edition.
They are legally binding in all legal affairs.
1.3 Further Documents
• Data sheet
• Operating instructions
For documents in further languages, see www.r-stahl.com.
1.4 Conformity with Standards and Regulations
See certificates and EU Declaration of Conformity: www.r-stahl.com.
The device has IECEx approval. For certificate please refer to the IECEx homepage:
http://iecex.iec.ch/
Further national certificates can be downloaded via the following link:
https://r-stahl.com/en/global/products/support/downloads/.

Explanation of the Symbols
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2018-07-04·HB00·III·en·03
Position Switches
Series 8074/2
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2 Explanation of the Symbols
2.1 Symbols used in this Manual
2.2 Warning Notes
Warnings must be observed under all circumstances, in order to minimize the risk due to
construction and operation. The warning notes have the following structure:
• Signalling word: DANGER, WARNING, CAUTION, NOTICE
• Type and source of danger/damage
• Consequences of danger
• Taking countermeasures to avoid the danger or damage
Symbol Meaning
Tips and recommendations on the use of the device
Danger due to explosive atmosphere
Danger due to live components
DANGER
Danger to persons
Non-compliance with the instruction results in severe or fatal injuries to
persons.
WARNING
Danger to persons
Non-compliance with the instruction can result in severe or fatal injuries
to persons.
CAUTION
Danger to persons
Non-compliance with the instruction can result in light injuries to
persons.
NOTICE
Avoiding material damage
Non-compliance with the instruction can result in material damage to the device
and / or its environment.

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Safety Notes
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Position Switches
Series 8074/2
2.3 Symbols on the Device
3 Safety Notes
3.1 Storage of the Manual
• Read the manual carefully.
• Store the manual at the mounting location of the device.
• Observe applicable documents and operating instructions of the devices to be
connected.
3.2 Personnel Qualification
Qualified specialist personnel are required to perform the tasks described in this manual.
This primarily applies to work in the following areas:
• Project engineering
• Mounting/dismounting the device
• (Electrical) installation
• Commissioning
• Maintenance, repair, cleaning
Specialists who perform these tasks must have a level of knowledge that meets
applicable national standards and regulations.
Additional knowledge is required for tasks in hazardous areas! R. STAHL recommends
having a level of knowledge equal to that described in the following standards:
• IEC/EN 60079-14 (Electrical installations design, selection and construction)
• IEC/EN 60079-17 (Inspection and maintenance of electrical installations)
• IEC/EN 60079-19 (Equipment repair, overhaul and reclamation)
Symbol Significance
05594E00
CE marking according to the current applicable directive.
02198E00
According to its marking, the device is certified for hazardous areas.
15649E00
Input
15648E00
Output
11048E00
Safety instructions that must always be observed: For devices with this
symbol, the corresponding data and/or the safety-relevant instructions
contained in this manual must be observed!

Safety Notes
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Position Switches
Series 8074/2
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3.3 Safe Use
Before assembly
• Read and observe the safety notes in this manual.
• Ensure that the contents of this manual are fully understood by the personnel in
charge.
• Use the device in accordance with its intended and approved purpose only.
• Always consult with R. STAHL Schaltgeräte GmbH if using the device under operating
conditions not covered by the technical data.
• Make sure that the device is not damaged.
• We are not liable for damage caused by incorrect or unauthorised use of the device or
by non-compliance with this manual.
For mounting and installation
• Have mounting and installation performed only by qualified and authorised persons
(see "Personnel qualification" section).
• The device is only to be installed in zones for which it is suited based on its marking.
• During installation and operation, observe the information (characteristic values and
rated operating conditions) on the rating, data and information plates located on the
device.
• Before installation, make sure that the device is not damaged.
Commissioning, maintenance, repair
• Only have commissioning and repairs performed by qualified and authorised persons
(see "Personnel qualification" section).
• Before commissioning, make sure that the device is not damaged.
• Only perform maintenance work described in this manual.
• The device must not be operated if there are dust deposits that are 50 mm thick,
as stated in IEC/EN 61241-0.
3.4 Modifications and Alterations
DANGER
Explosion hazard due to modifications and alterations to the device!
Non-compliance results in severe or fatal injuries.
• Do not modify or alter the device.
No liability or warranty for damage resulting from modifications and
alterations.

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Function and Device Design
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Position Switches
Series 8074/2
4 Function and Device Design
4.1 Function
Application range
Position switches position, control and monitor moving parts on machines and systems.
Because they meet the requirements of the EN 50 041 and IEC 60947-5-1 product
standards, they can also be used as a position switch with a safety function.
Series 8074/2 position switches are certified for use in hazardous areas of Zones 1, 2, 21
and 22.
Mode of operation
In conjunction with a guard door monitor and the corresponding circuitry, the PL position
switches reach "e" in accordance with EN ISO 13849-1, or up to SIL 3 in accordance with
EN 62061.
They are identified with the ¯ character for positive opening operation.
There are snap and slow action versions in different forms of contacts as well as in a
variety of different actuating elements.
DANGER
Explosion hazard due to improper use!
Non-compliance results in severe or fatal injuries.
• The device may only be used according to the operating conditions
described in this manual.
• Use the device only for the intended purpose specified in this
manual.

Technical Data
8257036 / 807460300070
2018-07-04·HB00·III·en·03
Position Switches
Series 8074/2
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5 Technical Data
Explosion Protection
Global (IECEx)
Gas and dust IECEx BVS 16.0085
Ex d e IIC T6 ... T5 Gb
Ex tb IIIC T80°C Db
Europe (ATEX)
Gas and dust BVS 05 ATEX E 007
E II 2 G Ex d e IIC T6 ... T5 Gb
E II 2 D Ex tb IIIC T80°C Db
Certifications and certificates
Certificates IECEx, ATEX, Russia (TR)
Technical Data
Version 8074/2-.-W, -R, -SR, -DL, -WH, -WPH, -D, -DS, -DD
Electrical data
Rated operational
voltage Ue
Rated operational
current Ie
4.4 A: +70 °C (T6);
6.6 A: +70 °C (T5)
Switching capacity
Rated insulation
voltage
250 V
Rated impulse
withstand voltage
4 kV
Short circuit
protection
6 A (time lag)
Ambient conditions
Operating
temperature range
-40 to +70 °C, T6 (max. 4.4 A)
-40 to +70 °C, T5 (max. 6.6 A)
8074/2-1
8074/2-2
8074/2-5
8074/2-3
Alternating voltage for equal potential:
Alternating voltage for unequal potential:
Direct voltage:
max. 500 V
max. 250 V
125 V
max. 400 V
max. 250 V
125 V
AC-12 AC-15 DC-12
8074/2-1
8074/2-2
8074/2-5
8074/2-3 8074/2-1
8074/2-2
8074/2-5
8074/2-3 8074/2-.
max. 250 V
max. 500 V **)
max. 4 A
max. 5000 VA
max. 250 V
max. 400 V **)
max. 4 A
max. 4000 VA
max. 250 V
max. 500 V **)
max. 4 A
max. 1000 VA
max. 250 V
max. 400 V **)
max. 4 A
max. 1000 VA
max. 125 V
max. 4 A
max. 400 W
**) only with the same potential

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Technical Data
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Position Switches
Series 8074/2
Technical Data
Version 8074/2-.-AZ-20
Electrical data
Rated operational
voltage Ue
Rated operational
current Ie
max. 6 A: -20 °C < Ta < +60 °C, 250 V AC;
max. 0.25 A: -20 °C < Ta < +60 °C, 230 V DC
Switching capacity
Rated insulation
voltage
250 V
Rated impulse
withstand voltage
4 kV
Short circuit
protection
6 A gN / gG
Ambient conditions
Operating
temperature range
-20 to +40 °C (T6)
-20 to +60 °C (T5)
Technical Data
Version 8074/2-.-W, -R, -SR, -DL, -WH, -WPH, -D, -DS, -DD, -AZ-20
Mechanical data
Maximum switching
frequency
max. 1800 operating cycles/h
Degree of protection IP66 -40 °C (DIN EN 60529)
Mechanical shock
resistance
Material
Enclosure Corrosion-resistant aluminium, powder-coated
Similar to RAL 7016
Cover 1.4401 stainless steel, blasted
Mounting / Installation
Cable entries 8161/7-M20..
on the enclosure bottom: 1 x M20 x 1.5
Connection with cable entry 8161:
For sheathed cable 4 x 2.5 mm2 (Ø 4 to 13 mm); 4 x 1.5 mm2 recommended
Terminals 0.75 to 2.5 mm2, 0.75 to 1.5 mm2 (8074/2-.-AZ-20)
solid, finely stranded with or without core end sleeve; additional outer protective
conductor connection up to max. 4 mm2
Tightening torque
8074/2-.-AZ-20
Alternating voltage:
Direct voltage:
250 V AC
230 V DC
AC-15 DC-13
max. 250 V
max. 6 A
max. 230 V
max. 0.25 A
Snap-action contact: 2 g
Slow-action contact: 20 g
Screw terminals: 0.4 Nm max.
Cover screws: 1.5 to 2 Nm
Cable entries: See installation note (enclosed unattached)

Technical Data
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Position Switches
Series 8074/2
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Contact
Version
Contact arrangement 2-pole, galvanically separated with double break
Contact opening ) 1.5 mm (isolating distance ) 3 mm)
Material
Contacts Silver-nickel
Enclosure contact Polyamide, glass fibre reinforced
Service life
Mechanical max. 106 operating cycles
electrical max. 106 operating cycles
Technical Data
Slow-action
contact
Snap-action
contact
Slow-action contact,
overlapping
08667E00
8074/2-1
08668E00
8074/2-2
08675E00
8074/2-5
08669E00
8074/2-3
Caution:
The positive opening operation ¯ function depends on
the actuator