Stahl 8579/61 Series User manual

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Operating instructions
Additional languages r-stahl.com
EN
SolConeX
Maintenance socket
Series 8579/61

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SolConeX Maintenance socket
Series 8579/61
Contents
1 General Information ............................................................................................3
1.1 Manufacturer .......................................................................................................3
1.2 Information regarding the Operating Instructions ................................................3
1.3 Further Documents .............................................................................................3
1.4 Conformity with Standards and Regulations .......................................................3
2 Explanation of the Symbols ................................................................................4
2.1 Symbols in these Operating Instructions ............................................................4
2.2 Warning Notes ....................................................................................................4
2.3 Symbols on the Device .......................................................................................5
3 Safety Notes .......................................................................................................5
3.1 Operating Instructions Storage ...........................................................................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 ......................................................................................13
7 Mounting and Installation ..................................................................................13
7.1 Dimensions / Fastening Dimensions .................................................................13
7.2 Mounting / Dismounting, Operating Position .....................................................14
7.3 Installation .........................................................................................................16
8 Commissioning .................................................................................................19
9 Operation ..........................................................................................................19
10 Maintenance, Overhaul, Repair ........................................................................20
10.1 Maintenance .....................................................................................................20
10.2 Overhaul ...........................................................................................................20
10.3 Repair ...............................................................................................................20
10.4 Returning the Device ........................................................................................21
11 Cleaning ............................................................................................................21
12 Disposal ............................................................................................................21
13 Accessories and Spare Parts ............................................................................21

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General Information
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SolConeX Maintenance socket
Series 8579/61
1 General Information
1.1 Manufacturer
R. STAHL Schaltgeräte GmbH
Am Bahnhof 30
74638 Waldenburg
Germany
Phone: [phone]
Fax: [phone]
Internet: r-stahl.com
E-Mail: [email protected]
1.2 Information regarding the Operating Instructions
ID-No.: 201306 / 8579615300
Publication Code: 2020-11-10·BA00·III·en·03
The original instructions are the English edition.
They are legally binding in all legal affairs.
1.3 Further Documents
• SolConeX plug and socket devices data sheet
For documents in additional languages, see r-stahl.com.
1.4 Conformity with Standards and Regulations
See certificates and EU Declaration of Conformity: 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/support/downloads/.

Explanation of the Symbols
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SolConeX Maintenance socket
Series 8579/61
2 Explanation of the Symbols
2.1 Symbols in these Operating Instructions
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
General danger
Danger due to explosive atmosphere
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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SolConeX Maintenance socket
Series 8579/61
2.3 Symbols on the Device
3 Safety Notes
3.1 Operating Instructions Storage
• Read the operating instructions carefully.
• Store the operating instructions 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 these
operating instructions. 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 Meaning
05594E00
CE marking in accordance with the current applicable directive.
02198E00
Device certified for hazardous areas in accordance with the marking.

Safety Notes
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SolConeX Maintenance socket
Series 8579/61
3.3 Safe Use
Before mounting
• Read and observe the safety notes in these operating instructions!
• Ensure that the contents of these operating instructions 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 which are not covered by the technical data.
• Make sure that the device is not damaged.
• We cannot be held liable for damage at the device caused by incorrect or unauthorised
use or non-compliance with these operating instructions.
For mounting and installation
• Have mounting and installation performed only by qualified and authorised persons
(see chapter "Qualification of the personnel").
• The device is only to be installed in areas 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, as well as the technical data in these operating instructions.
• Before installation, make sure that the device is not damaged.
• Do not open the device when it is energized.
• Prevent electrostatic discharge at the device.
Commissioning, maintenance, repair
• Only have commissioning and repairs performed by qualified and authorised persons
(see chapter "Personnel qualification").
• Before commissioning, make sure that the device is not damaged.
• Perform only maintenance work described in these operating instructions.
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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SolConeX Maintenance socket
Series 8579/61
4 Function and Device Design
4.1 Function
Application range
The 8579/61 maintenance socket is an explosion-protected electrical device.
It is approved for use in hazardous areas of Zones 1, 2, 21 and 22. It is used to connect
non-explosion-protected equipment that is portable or in a fixed location in hazardous
areas if no explosive atmosphere is present, such as for repair and maintenance work
with a hot work permit.
Construction design
The maintenance socket is a switch socket secured by a padlock. The entire enclosure
and the connection technology fulfills the requirements of type of protection "e" increased
safety.
The wiper of the installation switch is reduced to an extent for the safe separation of the
supply voltage of the non-Ex socket and indicator lamp / fuses in addition to the rated
operational voltage, and the clearances and creepage distances within the flameproof
encapsulated switching chamber also demand increased safety "e "or higher.
DANGER
Explosion hazard due to improper use!
Non-compliance results in severe or fatal injuries.
• Use the device only in accordance with the operating conditions
described in these operating instructions.
• Use the device only for the intended purpose specified in these
operating instructions.

Technical Data
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SolConeX Maintenance socket
Series 8579/61
5 Technical Data
Explosion Protection
Global (IECEx)
Gas and dust IECEx PTB 10.0047X
Ex db eb IIC T6 ... T5 Gb
Ex tb IIIC T60 °C ... T75 °C Db
Europe (ATEX)
Gas and dust PTB 02 ATEX 1137 X
EII 2 G Ex db eb IIC T6 ... T5 Gb
EII 2 D Ex tb IIIC T60 °C ... T75 °C Db
Certifications and certificates
Certificates IECEx, ATEX
Technical Data
Electrical data
Rated operational
voltage
max. 415 V AC
Frequency 50/60 Hz (for frequencies )100 Hz reduction to 50 A required)
Voltage tolerance -10 to +10 %
Rated operational
current
63 A
Rated insulation
voltage
415 V
Utilization category According to IEC/EN 60947-3:
1) 1 contact
2) 2 contacts connected in series
3) 3 contacts connected in series
Back-up fuse
Main contacts 63 A gG (without thermal protection)
80 A gG (with thermal protection)
Auxiliary contacts 10 A gG
Ambient conditions
Operating
temperature range
-45 to +55 °C
(The storage temperature corresponds to the ambient temperature)
AC-3 DC-23 DC-1
415 V, 63 A 220 V, 63 A3) 220 V, 63 A3)
18.5 kW, 220/230/
240 V
120 V, 63 A2) 120 V, 63 A2)
30 kW, 380/400/
415 V
60 V, 63 A1) 60 V, 63 A1)

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Technical Data
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SolConeX Maintenance socket
Series 8579/61
Mechanical data
Number of poles 4-pole (3P + ¿)/5-pole (3P + N + ¿) (N-conductor connected)
Auxiliary contacts
Standard version 8080/1-1: 1 NC + 1 NO in the left installation slot
NO contact ON delayed
NO contact OFF leading (> 20 ms before opening of the main contacts)
NC contacts synchronizing
Possible auxiliary
contacts
max. 2 auxiliary contact blocks of type 8080/1 (slow-action contacts)
8080/1-1: 1 NC contact + 1 NO contact
NO contact ON delayed 1)
NO contact OFF leading (> 20 ms before opening of the main contacts) 1)
NC contact synchronizing
8080/1-3: 2 NC contacts 2)
8080/1-4: 2 NO contacts 2)
1) only in the left installation slot, synchronizing in the right installation slot
2) synchronizing in all installation slots
Utilisation
category
Interlocked switch 3-pole switch with isolating characteristics
1 auxiliary contact (ON - delayed, OFF - leading)
Material
Enclosure Polyester, glass fibre reinforced
Degree of protection IP66 in acc. with IEC/EN 60529
Impact strength IK 10 as per IEC 62262-0 and IEC 60309-1
Connection type Screw terminals
Connection
Terminals
Main contacts
Single
conductor
connection
16 to 50 mm2(AWG 6 to 1/0) finely stranded/stranded
Multiple
conductor
connection
2 x 16 mm2(2 x AWG 6) finely stranded/stranded
Note Only conductors of the same cross section are permissible!
Auxiliary contacts 0.75 to 1.5 mm2(AWG 18 to 16) finely stranded
0.75 to 2.5 mm2(AWG 18 to 16) solid
Technical Data
AC-12 AC-15 DC-12
8080/1-1 8080/1-3
8080/1-4
8080/1-1 8080/1-3
8080/1-4
8080/1-.
max. 250 V
max. 500 V **)
max. 6 A
max. 5000 VA
max. 250 V
max. 400 V **)
max. 6 A
max. 4000 VA
max. 250 V
max. 500 V **)
max. 6 A
max. 1000 VA
max. 250 V
max. 400 V **)
max. 6 A
max. 1000 VA
max. 125 V
max. 6 A
max. 400 W
**) only with the same potential

Technical Data
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SolConeX Maintenance socket
Series 8579/61
Weight
Service life > 20,000 switching cycles (electric and mechanical)
Tightening torque Terminals:
Main contact: 6 Nm
Auxiliary contact: 0.4 Nm
Cover screws: 3.5 Nm
Cable glands
Cable gland 1 x M50 x 1.5
(positioning on the top or at the side, according to the order)
* Reduction sealing insert
Stopping plug 1 x M25 x 1.5
When used in an application range of < -40 °C, the seal is only intended for a
one-time installation. If performing a re-installation, replace the seal.
Technical Data
8579/61-4 7.9 kg
8579/61-5 8.3 kg
Thread
size
A/F Clamping
range
Clamping
range
+ RDE*
Tightening
torque
Connection
thread
at 20 °C
Tightening
torque
Cap nut
at 20 °C
M50x1.5 55 23 to 35 mm 16 to 25 mm 13 Nm 12 Nm
Thread
size
A/F Tightening
torque
Connection
thread
at 20 °C
M25x1.5 29 1.5 Nm

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Technical Data
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SolConeX Maintenance socket
Series 8579/61
Arrangement of the earth contact sleeve
Position: Time position, view: Front side of the socket
Arrangement of socket contacts and terminal markings
Arrangement of the socket contacts and terminal markings in the 6h position
(view from the front side of the socket to the socket contacts)
02395E00
4-pole (3P + ¿)
06556E00
5-pole (3P + N + ¿)
06555E00
8579/61-4.. 8579/61-5..

Technical Data
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SolConeX Maintenance socket
Series 8579/61
Colour code and arrangement of socket contacts and terminal markings
Colour code according to IEC 60309-1 and arrangement relative to the polarizing slot for
different voltages and frequencies in accordance with IEC 60309-2
1) Mainly for ship installations
2) Not standardized but recommended preferred position
3) Colour code corresponding to respective voltage colour code
4) Frequencies )100 Hz lead to increased heating. This must be offset by reducing the current to 50 A.
For further technical data, see r-stahl.com.
No. of poles Frequency
[Hz]
Voltage
[V]
Colour code Position of
earth contact sleeve
All nominal operating voltages and/or
frequencies not covered by other
arrangements
1 h
4-pole
(3P + ¿)
50 380 Red 3 h
50 and 60 100 to 300 Yellow 4 h
50 and 60 200 to 250 Blue 9 h
50 and 60 380 to 415 Red 6 h
50 and 60 downstream of
isolating transformer
3) 12 h
100 to 300 4) > 50 Green 10 h
300 to 500 4) > 50 Green 2 h
5-pole
(3P + N + ¿)
50 and 60 57/100 to 75/130 Yellow 4 h
50 and 60 120/208 to 144/250 Blue 9 h
50 and 60 200/346 to 240/415 Red 6 h
50 220/380 Red 3 h
100 to 300 4) > 50 Green 10 h 2)
300 to 500 4) > 50 Green 2 h

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Transport and Storage
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SolConeX Maintenance socket
Series 8579/61
6 Transport and Storage
• Transport and store the device only in the original packaging.
• Store the device in a dry place (no condensation) and vibration-free.
• Do not drop the device.
7 Mounting and Installation
7.1 Dimensions / Fastening Dimensions
Dimensional drawings (all dimensions in mm [inches]) – Subject to modification
04456E00
8579/61
9 [0.35]
342 [13.46]
9 [0.35]
152 [5.98]
180 [7.09]
~ 212 [~ 8.36]
~ 413 [~ 16.27]
~ 429 [~ 16.88]
13 [0.51]

Mounting and Installation
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SolConeX Maintenance socket
Series 8579/61
7.2 Mounting / Dismounting, Operating Position
7.2.1 Assembly
This device is suitable for outdoor and indoor use.
• Provide a protective roof or wall if the enclosure and explosion-protected electrical
equipment are used outdoors.
Operating position
20210E00
• Hinged cover preferably facing downwards,
connection chamber facing upwards.
20211E00
• Mounting: Fit the maintenance socket using three
screws and suitable washers on an even surface.
The fastening holes are designed as elongated holes.
This allows vertical and horizontal adjustment during mounting.

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Mounting and Installation
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SolConeX Maintenance socket
Series 8579/61
Mounting auxiliary contacts
Standard versions are delivered with an auxiliary contact (8080/1-1: 1 NC contact and
1 NO contact) in the left installation slot.
A maximum of 2 Type 8080/1 auxiliary contacts can be used.
The switching function of the auxiliary contact depends on the installation slot used
(see chapter "Technical Data").
Dismounting the auxiliary contacts
The degree of protection IP20 (finger-safe) remains intact even after removing
the covering.
12435E00
• Carefully remove the cover (1)
of the installation slot (3)
using a screwdriver or a knife.
• Carefully insert the auxiliary
contact (2) into the installation
slot until it snaps into place.
• Affix the enclosed schematic
indicating the respective
switching function to the rating
plate of the switch.
12436E00
• Insert the auxiliary contact key
(Art. no. 201909) between the
auxiliary contact and the switch
cover with the Stahl logo
pointing upwards (!).
• Pull out the auxiliary contact
along with the auxiliary contact
key.
13
2
CLICK

Mounting and Installation
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SolConeX Maintenance socket
Series 8579/61
7.3 Installation
DANGER
Explosion hazard due to insufficient protective measures!
Non-compliance results in severe or fatal injuries.
• Select suitable cables to ensure that the maximum
permissible conductor temperatures are not exceeded.
• When using core end sleeves, attach them using a suitable tool.
• Use only separately tested cable entries and stopping plugs with
an EU Type Examination Certificate.
• The conductor insulation must be touching the terminal.
• Do not damage the conductor (e.g. nicking) when stripping it.
• Always connect the protective conductor.
DANGER
Explosion hazard in the case of installation in special areas with
potentially explosive dust!
Non-compliance results in severe or fatal injuries.
• Do not use the device in areas where there are processes
generating strong charges, machine friction processes,
separation processes and electrospray processes
(e.g. around electrostatic coating systems) and
pneumatically generated dust.
DANGER
Explosion hazard when seal is insufficient and/or service temperature
is too high!
Non-compliance results in severe or fatal injuries.
• Completely seal the bayonet ring of the plug and of the hinged
cover to obtain the degree of protection.
• Securely seal and lock the enclosure.
• Make sure the service temperature range is maintained
(see the "Technical data" chapter).

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Mounting and Installation
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SolConeX Maintenance socket
Series 8579/61
Two conductors can be installed under one connection terminal.
Material and cross section of both conductors must be identical.
The conductors can be connected without any special preparations.
Special conditions
The maintenance socket has to be secured against unauthorised use by
means of a padlock. Commissioning has to be approved by the manager or
his authorised representative. Approval may only be granted if absence of an
explosive atmosphere during repair work is guaranteed or if the necessary
measures against explosion hazards have been taken. The device must only
be commissioned if there is a work permit in accordance with RL 99/92/EC
Annex II 1.2.
15727E00
• Loosen the cap nut (6).
• Remove dust protection (5).
• Optional: Remove reduction
sealing insert (4b).
• Guide the conductor through the
conductor entry.
• Tighten the cap nut (6).
Legend
2 = Sealing ring 4b = Reduction sealing insert (RSI)
3 = Connection thread 5 = Dust protection
4a = Sealing insert 6 = Cap nut

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SolConeX Maintenance socket
Series 8579/61
7.3.1 Opening and Closing the Enclosure
Opening the enclosure
• Loosen the cover screws.
• Remove the cover with rotary actuator.
(Caution: The cover can only be removed if the switch is in the I position!)
Closing the enclosure
• Fit the cover with rotary actuator.
(Caution: The switch must be in the I position!)
• Tighten the cover screws to the specified tightening torque (3.5 Nm).
11201E00
• Open the enclosure.
• Guide the conductors through the
cable entry and into the connection
chamber.
• Strip the conductors.
• Insert the conductors into
the corresponding terminals
and clamp them
(for tightening torque,
see chapter "Technical data").
Insert the stripped cable ends
completely under the terminal.
• Check if the conductors have
been clamped properly.
• Align the conductors. Make sure
that the clamping points are not
under tension.
• Tighten the cable entry/entries.
• Close the enclosure
(for the tightening torque,
see chapter "Technical data").
A [mm] B [mm]
Main contacts 380 20
Auxiliary
contacts
380 10
When open, the switch gear wheel may not be switched, since the switching
function is not guaranteed with an incorrect gear wheel position!

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Commissioning
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SolConeX Maintenance socket
Series 8579/61
8 Commissioning
Before commissioning, do the following:
• Check the mounting and installation.
• Enclosure must not be damaged.
• Remove any foreign bodies.
• If necessary, clean the connection chamber.
• Check if the conductors have been inserted correctly.
• Check whether all screws and nuts have been tightened firmly.
• Check whether all the cable entries and stopping plugs have been tightened firmly.
• Check whether all conductors have been clamped firmly.
• Observe the line voltage.
• Seal the unused cable entries with plugs certified according to
Directive 2014/34/EU or IEC and unused drilled holes with stopping plugs
certified according to Directive 2014/34/EU or IEC.
9 Operation
Only type 8579/12 plugs by R. STAHL or commercially available non-Ex plugs may be
used.
DANGER
Explosion hazard due to incorrect installation!
Non-compliance results in severe or fatal injuries.
• Check the device for proper installation before commissioning.
• Comply with national regulations.
WARNING
Damage or destruction of the device by arc and high pressure is
possible if improper switching operations are used!
Non-compliance can result in severe or fatal injuries.
• Quickly switch the device on and off completely.
• Avoid switching positions between 0 and I (ON and OFF).
The maintenance socket may only be operated when fully mounted.
If the plug has been disconnected, lock the hinged cover with the bayonet
ring.

Maintenance, Overhaul, Repair
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SolConeX Maintenance socket
Series 8579/61
10 Maintenance, Overhaul, Repair
10.1 Maintenance
• Consult the relevant national regulations to determine the type and extent of
inspections.
• Tailor inspection intervals to the operating conditions.
At a minimum, check the following points during maintenance work on the device:
• Firm fit of the conductors
• Damage on the enclosure, seals or surface
• Dirt on the sleeves
• Compliance with the permissible temperatures (according to IEC/EN 60079)
• If the indicator lamp and fuse are functioning properly
• Intended use
10.2 Overhaul
10.3 Repair
DANGER
Overheating and explosion hazard due to defective switching contacts!
Non-compliance results in severe or fatal injuries.
• Replace the entire socket flange after each short circuit in the
main circuit of the switch because the state of the switching
contacts cannot be checked in hermetically sealed equipment.
Observe the relevant national regulations in the country of use.
DANGER
Explosion hazard due to improper repair!
Non-compliance results in severe or fatal injuries.
• Repair work on the devices must be performed only by
R. STAHL Schaltgeräte GmbH.
DANGER
Explosion hazard due to improper repair!
Non-compliance results in severe or fatal injuries.
• Hermetically sealed connections are to be repaired only in
conformity with the manufacturer's description.
• Repairs are not permitted based on the values in Table 2 or 3
of standard IEC 60079-1:2014.