Stahl MCP/BG Series User manual

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Operating instructions
Additional languages r-stahl.com
EN
Flameproof Manual Call Points
Series MCP/BG

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Flameproof Manual Call Points
Series MCP/BG
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 ........................................................................................9
7 Mounting and Installation ..................................................................................10
7.1 Dimensions / Fastening Dimensions .................................................................10
7.2 Mounting / Dismounting, Operating Position .....................................................10
7.3 Installation .........................................................................................................11
8 Commissioning .................................................................................................20
9 Operation ..........................................................................................................21
9.1 Manual Signalling Device Test ..........................................................................21
9.2 Resetting the Manual Signalling Device ...........................................................22
9.3 Troubleshooting ................................................................................................24
10 Maintenance, Overhaul, Repair ........................................................................25
10.1 Maintenance .....................................................................................................25
10.2 Repair ...............................................................................................................25
10.3 Returning the Device ........................................................................................26
11 Cleaning ............................................................................................................26
12 Disposal ............................................................................................................26
13 Accessories and Spare Parts ............................................................................26

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General Information
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Flameproof Manual Call Points
Series MCP/BG
1 General Information
1.1 Manufacturer
1.2 Information regarding the Operating Instructions
ID-No.: 250318 / MCP60300110
Publication Code: 2021-01-26·BA00·III·en·02
The original instructions are the English edition.
They are legally binding in all legal affairs.
1.3 Further Documents
• 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/.
R. STAHL Schaltgeräte GmbH
Business Unit Lighting & Signalling
Nordstr. 10
99427 Weimar
Germany
R. STAHL Schaltgeräte GmbH
Am Bahnhof 30
74638 Waldenburg
Germany
Phone:
Fax:
Internet:
E-mail:
[phone]
[phone]
r-stahl.com
[email protected]
Phone:
Fax:
Internet:
E-mail:
[phone]
[phone]
r-stahl.com
[email protected]

Explanation of the Symbols
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Flameproof Manual Call Points
Series MCP/BG
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
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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Flameproof Manual Call Points
Series MCP/BG
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 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 followed: The respective data must
be noted and/or the safety-related instructions contained in the operating
instructions must be followed for devices with this symbol!

Safety Notes
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Flameproof Manual Call Points
Series MCP/BG
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.
• 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 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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Flameproof Manual Call Points
Series MCP/BG
4 Function and Device Design
4.1 Function
Application range
The MCP/BG manual signalling device is a 1- or 2-way safety switch. The device is
designed for use in hazardous areas and/or harsh environments. In hazardous areas the
device has explosion protection for ATEX /IECEx Zones 1 and 2 for gas and 21 and 22
for dust. The device is suitable for gas group IIC and dust group IIIC.
Mode of operation
The switch is activated by breaking the glass on the front side of the device;
this provides the user with a distinct trigger signal. The device can be equipped with a
number of variants and accessories.
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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Flameproof Manual Call Points
Series MCP/BG
5 Technical Data
Explosion Protection
Global (IECEx)
Gas and dust IECEx BAS 08.0089X
Ex db IIC T6 Ta -55 to +70 °C Gb
Ex tb IIIC T85 °C Ta -55 to +70 °C Db IP66
Europe (ATEX)
Gas and dust Baseefa 08ATEX0269X
E II 2 G Ex db IIC T6 Ta -55 to +70 °C Gb
E II 2 D Ex tb IIIC T85 °C Ta -55 to +70 °C Db IP66
Certifications and certificates
Certificates IECEx, ATEX, Brazil (INMETRO), India (PESO), Russia (TS-RU)
Technical Data
Electrical data
Rated operational
voltage
12 to 50 V DC, 12 to 250 V AC
Switching capacity
Contact element Standard: 1 change-over contact;
optional: 2 change-over contacts
Switch NO or NC
System test Test key provided
Ambient conditions
Operating
temperature range
-40 to +70 °C
Mechanical data
Degree of protection IP66 acc. to IEC 60529
Material
Enclosure Glass fibre reinforced polyester (GRP)
Surface finish two pack, acrylic polyurethane, various colour options
Cable entries 4 cable entries, supplied with (3x) Ex d stopping plugs and (1x) dust cap
DC 12 to 30 V 3 A
30 to 50 V 1 A
AC 12 to 250 V 5 A

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Transport and Storage
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Flameproof Manual Call Points
Series MCP/BG
For further technical data, see r-stahl.com.
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.
Position of
cable entries
Connection
Terminals 7 way terminal block., 4 mm2
Earth connection provided as standard
Accessories
LED status
indication
Optional: Red LED status indicator (up to 24 V DC)
Lift flap stainless steel (break glass version only)
Duty label Metalised polyester, customer to specify wording / symbols
(see main picture for example)
Tag label Stainless steel tag with polyester label, customer to specify max 9 characters
Resistors Customer to specify value
Mounting / Installation
Assembly via holes through the back box.
Technical Data
13952E00 16555E00
Break glass fire alarm Break glass fire alarm with cover

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Flameproof Manual Call Points
Series MCP/BG
7 Mounting and Installation
The device is approved for use in gas explosion hazardous areas of Zones 1 and 2 and
dust explosion hazardous area of Zones 21 and 22 and in safe areas.
7.1 Dimensions / Fastening Dimensions
7.2 Mounting / Dismounting, Operating Position
DANGER
Explosion hazard due to incorrect installation of the device!
Non-compliance results in severe or fatal injuries.
• Carry out installation strictly according to the instructions and national
safety and accident prevention regulations to maintain the explosion
protection.
• Select and install the electrical device so that explosion protection is not
affected due to external influences, i.e. pressure conditions, chemical,
mechanical, thermal and electric impact such as vibration, humidity and
corrosion (see IEC/EN 60079-14).
• The device must only be installed by trained qualified personnel who is
familiar with the relevant standards.
Dimensional drawings (all dimensions in mm [inches]) – Subject to change
13953E00
MCP/BG
DANGER
Explosion hazard due to improper mounting!
Non-compliance results in severe or fatal injuries.
• Only mount the device on walls or a suitable surface.
• If terminal sleeves are fitted, they must be gas-tight and applied with a
suitable tool.
• Carefully remove or replace the components.
• Carefully protect exposed joint surfaces from damage, dust and dirt.
• Install end flanges without applying force (without hammer and tool)
in straight alignment.

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Mounting and Installation
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Flameproof Manual Call Points
Series MCP/BG
7.3 Installation
7.3.1 Preparation for electrical Installation
Removing the cover
• Remove 4 screws.
• Lift the MCP front cover together with the middle frame.
DANGER
Explosion hazard due to open holes, unused cable entries and cable glands!
Non-compliance can result in severe or fatal injuries.
• Only use approved and flameproof (Ex d) cable glands.
• When selecting cable entries, observe the thread type and thread size
in the component documentation.
• Seal thread with non-hardening thread sealant.
• Always close unused holes, cable entries and cable glands using
approved stopping plugs or plugs. Observe IEC/EN 60079-14 for this.
• Correct reassembly of the unit is required to ensure ingress protection
to IP 66.
16563E00
1 Cheese-head screws
M5 x 16
2 MCP front cover together
with middle frame
3 PCB mounting screw
4PCB
5MCP base
A retaining strap is fitted between the base and front cover.
Depending on the variant of MCP which has been selected the PCB may or
may not have to be removed during installation.
Details about this can be found in the "Electrical connection" chapter.
54321

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Flameproof Manual Call Points
Series MCP/BG
Reassembling the enclosure
• If removed, replace the PCB and screws.
• Replace the front cover with the middle frame. Ensure that the retraining strap is not
pinched in.
• Once the front cover is in position, tighten the outer 4 screws with a tightening torque
of 6.25 Nm.
7.3.2 Electrical Connection
Key components
7.3.3 Circuit Diagrams
The device is to be installed on a wall made from a suitable material!
Comply with local directives and standards when selecting the installation
location!
Correct reassembly of the device is required to ensure the degree of
protection.
Be cautious when replacing components and ensure the correct tightening
torque is applied, where specified.
16834E00
1 Cable connection (from left)
2 Connection for switch
3 LK1, LK2 and LK3 connections for
special versions
4 2 PCB fastening points
5 Terminal block
6 Breakable lugs for independent
switch function
• MCP switch can be operated normally open or normally closed to suit
different systems.
• The device can be purchased with a single or two-pin switch.
• Two-pin switch can be used as standard or to switch independent
circuits.
• An LED indication light is available as an optional extra.
• Standard wiring configurations are listed below. If further information is
required please contact your local sales office.
LK2
LK1
LK3
N/O
N/C
Common
1
234
5
6

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Flameproof Manual Call Points
Series MCP/BG
7.3.4 Standard Devices
Single-pole MCP, switch normally closed in standby / normally open in alarm
Single-pole MCP, switch normally open in standby / normally closed in alarm
Two-pole MCP, switch normally closed in standby / normally open in alarm
(independent circuits)
Two-pole MCP, switch normally open in standby / normally closed in alarm
(independent circuits)
16835E00
1 Cable connection (from left)
2 L / +
3 N / -
16836E00
1 Cable connection (from left)
2 L / +
3 N / -
16837E00
1 Cable connection (from left)
2 L / + pole 1
3 L / + pole 2
4 N / - pole 1
5 N / - pole 2
16838E00
1 Cable connection (from left)
2 L / + pole 1
3 L / + pole 2
4 N / - pole 1
5 N / - pole 2
LK1
LK3
N/O
N/C
Common
1
2
3
LK1
LK3
N/O
N/C
Common
1
2
3
LK1
LK3
N/O
N/C
Common
1
2
3
4
5
LK1
LK3
N/O
N/C
Common
1
2
3
4
5

Mounting and Installation
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Flameproof Manual Call Points
Series MCP/BG
7.3.5 Standard Devices with Monitoring Resistors
Single-pole MCP, switch normally open in standby / normally closed in alarm
• Make sure that the LK2 connection has been removed.
• In-line resistor between positions 2 & 6 – R2.
• End-of-line resistor between positions 4 & 5 – R1.
• Standard versions with monitoring resistors are only available with
switch normally closed in standby / normally open in alarm.
• Resistor values are to be selected by the system designer,
depending on requirements.
• The PCB has 0 ohms of resistance.
• For 24 V DC systems, a minimum resistor value of 470 ohms should be
used.
10026E00
Normal / Standby
1 Switch closed –
end-of-line resistor active
2 N / -
3 L / +
4 R1 end-of-line resistor
5 R2 in-line resistor
04844E00
Active / Alarm
1 Switch open –
in-line resistor engaged
2 N / -
3 L / +
4 R1 end-of-line resistor
5 R2 in-line resistor
2
1
2
3
4
5
6
3
4
5
7
1
2
1
2
3
4
5
6
3
4
5
7
1

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Flameproof Manual Call Points
Series MCP/BG
7.3.6 Standard Devices with LED Status Light
Single-pole MCP, switch normally closed in standby / normally open in alarm
• Ensure that the connector wires from switch and LED are correctly installed as per the
schematic (see the following figure).
• Remove LK1 for LED activation in alarm or remove LK2 for LED activation in standby.
• Add a jumper/connection between terminals 1 and 2. Terminal 1 is the one closest to
LK3. The jumper/connection is depicted in the figure.
There is an 820 ohm resistor which is in line with the LED. When activated,
the LED together with the resistor will draw a current. On a 24 V DC system
this current is approximately 30 mA.
17567E00
17655E00
C
1
1a
2
3
4
Connector terminal
Red wire for LED
Black wire for LED
Blue wire for switch
Yellow wire for switch
Red wire for switch
17654E00
1
2
3
Cable connection (from left)
L / +
N / -
1a
2a
3a
4a
1
2
3
4
C
LK2
LK1
LK3
N/O
N/C
Common
1
2
3

Mounting and Installation
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Flameproof Manual Call Points
Series MCP/BG
Single-pole MCP, switch normally open in standby / normally closed in alarm
• Ensure that the connector wires from switch and LED are correctly installed as per the
schematic (see the following figure).
• Remove LK1 for LED activation in alarm or remove LK2 for LED activation in standby.
• Add a jumper/connection between terminals 1 and 2. Terminal 1 is the one closest to
LK3. The jumper/connection is depicted in the figure.
17567E00
17655E00
C
1
1a
2
3
4
Connector terminal
Red wire for LED
Black wire for LED
Blue wire for switch
Yellow wire for switch
Red wire for switch
17645E00
1
2
3
Cable connection (from left)
L / +
N / -
1a
2a
3a
4a
1
2
3
4
C
LK2
LK1
LK3
N/O
N/C
Common
1
2
3

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Flameproof Manual Call Points
Series MCP/BG
Two-pole MCP, switch normally closed in standby / normally open in alarm
(independent circuits)
• Ensure that the connector wires from switch and LED are correctly installed as per the
schematic (see the following figure).
• Remove LK1 for LED activation in alarm or remove LK2 for LED activation in standby.
• Add a jumper/connection between terminals 1 and 2. Terminal 1 is the one closest to
LK3. The jumper/connection is depicted in the figure.
17567E00
17656E00
C
1
1a
2
2a
3
3a
4
4a
Connector terminal
Red wire for LED
Black wire for LED
Blue wire for switch
Blue wire for second switch
Yellow wire for switch
Yellow wire for second switch
Red wire for switch
Red wire for second switch
17646E00
1
2
3
4
5
Cable connection (from right)
L / +
L / +
N / -
N / -
1a
2a
3a
4a
1
2
3
4
C
LK2
LK1
LK3
N/O
N/C
Common
1
2
3
4
5

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Flameproof Manual Call Points
Series MCP/BG
Two-pole MCP, switch normally open in standby / normally closed in alarm
(independent circuits)
• Ensure that the connector wires from switch and LED are correctly installed as per the
schematic (see the following figure).
• Remove LK1 for LED activation in alarm or remove LK2 for LED activation in standby.
• Add a jumper/connection between terminals 1 and 2. Terminal 1 is the one closest to
LK3. The jumper/connection is depicted in the figure.
7.3.7 Standard Devices with Monitoring Resistors and LED Status Light
17567E00
17656E00
C
1
1a
2
2a
3
3a
4
4a
Connector terminal
Red wire for LED
Black wire for LED
Blue wire for switch
Blue wire for second switch
Yellow wire for switch
Yellow wire for second switch
Red wire for switch
Red wire for second switch
17647E00
1
2
3
4
5
Cable connection (from right)
L / +
L / +
N / -
N / -
• Standard variants with monitoring function are only available with switch
normally closed in standby/normally open in alarm with LED activated.
• There is an 820 ohm resistor which is in-line with the LED.
When activated, the LED together with the resistor will draw a current.
On a 24 V DC system this current is approximately 30 mA.
• In standby without the LED activated, the resistance of the the
PCB is 0 ohms.
• Resistor values are to be selected by the system designer,
depending on the requirements of the system.
• For 24 V DC systems, a minimum resistor value of 470 ohms should be
used.
1a
2a
3a
4a
1
2
3
4
C
LK2
LK1
LK3
N/O
N/C
Common
1
2
3
4
5

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EN
Flameproof Manual Call Points
Series MCP/BG
Single-pole MCP, switch normally open in standby/normally closed in alarm
• Ensure that the lead wires from the switch and LED are correctly installed
(see the following figure).
• Make sure that the LK2 connection has been removed.
• In-line resistor between positions 2 & 7 – R2.
• End-of-line resistor between positions 4 & 5 – R1.
17567E00
17854E00
C
1a
2
3
4
4a
Connection terminal
Black wire for LED
Blue wire for switch
Yellow wire for switch
Red wire for switch
Red wire for LED
17542E00
Normal / Standby
1 Switch closed –
end-of-line resistor engaged
2N/-
3L/+
17543E00
Active / Alarm
1 Switch open –
in-line resistor active
2N/-
3L/+
1a
2a
3a
4a
1
2
3
4
C
2
1
2
3
4
5
6
3
7
1
R1
R2
2
1
2
3
4
5
6
3
7
1
R1
R2

Commissioning
20 250318 / MCP60300110
2021-01-26·BA00·III·en·02
EN
EN
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EN
Flameproof Manual Call Points
Series MCP/BG
7.3.8 Earth Connection
16564E00
8 Commissioning
Before commissioning, ensure the following:
• Check the mounting and installation.
• Enclosure must not be damaged.
• If necessary, remove foreign bodies.
• If necessary, clean the connection chamber.
• Check if the conductors have been inserted correctly.
• Check if all screws and nuts have been tightened firmly.
• Check if all conductors have been clamped firmly.
• Check if all prescribed tightening torques have been observed.
• Check whether the bayonet lock is tightened firmly.
• Make sure that the plug pin surface is not damaged.
• Use only in completely mounted state.
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.