Allen-Bradley 855XM Metal Horns Installation Instructions
Allen-Bradley 855XM Metal Horns are UL certified alarm horns designed for use in hazardous areas. They offer 64 distinct alarm tones, each with multiple stage options, making them suitable for a wide range of applications, including gas and dust detection in various zones and classes. The horns are compact, IP66 rated for exterior use, and can be easily installed and configured.
advertisement
Bulletin 855XM Hazardous Location Metal Horn
855XM-HGMD30D
855XM-HGMA10D
855XM-HGMA20D
1) Warnings
POTENTIAL ELECTROSTATIC CHARGING HAZARD – CLEAN ONLY WITH A DAMP CLOTH
DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE IS PRESENT.
DISCONNECT FROM POWER SOURCE TO PREVENT ELECTRICAL SHOCK BEFORE INSTALLING OR SERVICING. CHECK
POWER SUPPLY VOLTAGE AND FREQUENCY.
DÉCONNECTER L'ALIMENTATION AVANT TOUTE OPÉRATION D'INSTALLATION OU DE MAINTENANCE, AFIN D'ÉVITER
LES DÉCHARGES ELECTRIQUES. CONTROLER LA TENSION ET LA FRÉQUENCE D'ALIMENTATION.
SCHALTEN SIE DEN STROM WÄHREND DER INSTALLATION ODER BEI WARTUNGSARBEITEN AB UM EINEN
ELEKTRISCHEN SCHLAG ZU VERMEIDEN. PRUFEN SIE DIE SPANNUNG UND FREQUENZ DER STROMQUELLE.
SCOLLEGARE DALL'ALIMENTAZIONE PRIMA DELL'INSTALLAZIONE E DELLA MESSA IN SERVIZIO. CONTROLLARE LA
TENSIONE DI ALIMENTAZIONE LA FREQUENZA.
DESLIGAR A ALIMENTAÇÃO ANTES DE REALIZAR QUALQUER INTERVENÇÃO. VERIFICAR A TENSÃO E FREQUÊNCIA DA
ALIMENTAÇÃO.
DURANTE EL PROCESO DE INSTALACIÓN O MANTENIMIENTO DESCONECTAR LA TENSIÓN DE ALIMENTACIÓN PARA
EVITAR DESCARGAS ELECTRICAS. COMPROBAR TENSIÓN Y FRECUENCIA DE ALIMENTACIÓN.
UL Type 4/4X/13/3R
USE HEAT RESISTING CABLES AND CABLE GLANDS (RATED 90ºC)
EXPLOSION HAZARD – DO NOT REMOVE OR REPLACE LAMPS, FUSES OR PLUG- IN
MODULES UNLESS POWER HAS BEEN DISCONNECTED OR THE AREA IS KNOWN TO BE
FREE OF IGNITABLE CONCENTRATIONS OF FLAMMABLE GASES OR VAPORS.
EXPLOSION HAZARD – DO NOT DISCONNECT WHILE THE CIRCUIT IS LIVE OR UNLESS THE
AREA IS KNOWN TO BE FREE OF IGNITABLE CONCENTRATIONS.
EXPLOSION HAZARD – SUBSTITUTION OF ANY COMPONENT MAY IMPAIR SUITABILITY FOR
CLASS I, DIVISION 2 AND CLASS II DIVISION 2
DANGER POTENTIEL CHARGE ÉLECTROSTATIQUE - NETTOYER UNIQUEMENT AVEC UN
CHIFFON HUMIDE NE PAS OUVRIR UN PRESENCE D’ATMOSPHERE EXPLOSIVE
UTILISER DES CABLES ET DES PRESSE - ETOUPE RESISTANTS A LA CHALEUR (VALEUR
NOMINALE 90ºC)
DANGER D’EXPLOSION – NE PAS RETIRER OU REMPLACER DES LAMPS, DES FUSIBLES OU
DES MODULES EXTERNES MOINS QUE L’ALIMENTATION EST DÉCONNECTÉE OU LA ZONE
EST CONNUE POUR ÊTRE DÉNUE DE GAZ OU VAPEURS INFLAMMABLES
DANGER D’EXPLOSION – NE DÉBRANCHEZ PAS PENDANT QUE LE CIRCUIT EST SOUS
TENSION OU MOINS QUE LA ZONE EST CONNUE POUR ÊTRE DÉNUE DE GAZ OU VAPEURS
INFLAMMABLES
DANGER D’EXPLOSION – SUBSTITUTION DE N’IMPORTE COMPOSANT PEUT NUIRE A LA
COMFORMITÉ DE CLASSE I, DIVISION 2 ET DE CLASSE II, DIVISION 2
SUITABLE FOR USE IN CLASS I, DIVISION 2,
GROUPS A, B, C AND D HAZARDOUS LOCATIONS.
SUITABLE FOR USE IN CLASS II, DIVISION 2,
GROUPS F AND G HAZARDOUS LOCATIONS.
Wiring practices must meet applicable eletrical codes.
Les procédures des câblage doivent répondre aux codes électriques en vigueur.
Bei der Verdrahtung sind die geltenden elektrotechnischen Sicherheitsvorschriften zu befolgen.
Le procedure adottate per i cavi devono rispettare le codifiche elettriche applicabill.
A instalação da fiação deve atender aos códigos elétricos aplicáveis.
Las prácticas de instalación eléctrica deben seguir los códigos electricos.
www.rockwellautomation.com
ATTENTION
ATTENTION
ACHTUNG
ATTENZIONE
ATENÇÃO
ATENCIÓN
ATTENTION
ATTENTION
ACHTUNG
ATTENZIONE
ATENÇÃO
ATENCIÓN
ATTENTION
ATTENTION
ACHTUNG
ATTENZIONE
ATENÇÃO
ATENCIÓN
IP66
25
Publication 855XM-IN001E-EN-P-JANUARY 2023
DIR 10001361466 (Version 04)
855XM-HGMD30D
855XM-HGMA10D
855XM-HGMA20D
1) Warnings
POTENTIAL ELECTROSTATIC CHARGING HAZARD – CLEAN ONLY WITH A DAMP CLOTH
DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE IS PRESENT.
DISCONNECT FROM POWER SOURCE TO PREVENT ELECTRICAL SHOCK BEFORE INSTALLING OR SERVICING. CHECK
POWER SUPPLY VOLTAGE AND FREQUENCY.
DÉCONNECTER L'ALIMENTATION AVANT TOUTE OPÉRATION D'INSTALLATION OU DE MAINTENANCE, AFIN D'ÉVITER
LES DÉCHARGES ELECTRIQUES. CONTROLER LA TENSION ET LA FRÉQUENCE D'ALIMENTATION.
SCHALTEN SIE DEN STROM WÄHREND DER INSTALLATION ODER BEI WARTUNGSARBEITEN AB UM EINEN
ELEKTRISCHEN SCHLAG ZU VERMEIDEN. PRUFEN SIE DIE SPANNUNG UND FREQUENZ DER STROMQUELLE.
SCOLLEGARE DALL'ALIMENTAZIONE PRIMA DELL'INSTALLAZIONE E DELLA MESSA IN SERVIZIO. CONTROLLARE LA
TENSIONE DI ALIMENTAZIONE LA FREQUENZA.
DESLIGAR A ALIMENTAÇÃO ANTES DE REALIZAR QUALQUER INTERVENÇÃO. VERIFICAR A TENSÃO E FREQUÊNCIA DA
ALIMENTAÇÃO.
DURANTE EL PROCESO DE INSTALACIÓN O MANTENIMIENTO DESCONECTAR LA TENSIÓN DE ALIMENTACIÓN PARA
EVITAR DESCARGAS ELECTRICAS. COMPROBAR TENSIÓN Y FRECUENCIA DE ALIMENTACIÓN.
UL Type 4/4X/13/3R
USE HEAT RESISTING CABLES AND CABLE GLANDS (RATED 90ºC)
EXPLOSION HAZARD – DO NOT REMOVE OR REPLACE LAMPS, FUSES OR PLUG- IN
MODULES UNLESS POWER HAS BEEN DISCONNECTED OR THE AREA IS KNOWN TO BE
FREE OF IGNITABLE CONCENTRATIONS OF FLAMMABLE GASES OR VAPORS.
EXPLOSION HAZARD – DO NOT DISCONNECT WHILE THE CIRCUIT IS LIVE OR UNLESS THE
AREA IS KNOWN TO BE FREE OF IGNITABLE CONCENTRATIONS.
EXPLOSION HAZARD – SUBSTITUTION OF ANY COMPONENT MAY IMPAIR SUITABILITY FOR
CLASS I, DIVISION 2 AND CLASS II DIVISION 2
DANGER POTENTIEL CHARGE ÉLECTROSTATIQUE - NETTOYER UNIQUEMENT AVEC UN
CHIFFON HUMIDE NE PAS OUVRIR UN PRESENCE D’ATMOSPHERE EXPLOSIVE
UTILISER DES CABLES ET DES PRESSE - ETOUPE RESISTANTS A LA CHALEUR (VALEUR
NOMINALE 90ºC)
DANGER D’EXPLOSION – NE PAS RETIRER OU REMPLACER DES LAMPS, DES FUSIBLES OU
DES MODULES EXTERNES MOINS QUE L’ALIMENTATION EST DÉCONNECTÉE OU LA ZONE
EST CONNUE POUR ÊTRE DÉNUE DE GAZ OU VAPEURS INFLAMMABLES
DANGER D’EXPLOSION – NE DÉBRANCHEZ PAS PENDANT QUE LE CIRCUIT EST SOUS
TENSION OU MOINS QUE LA ZONE EST CONNUE POUR ÊTRE DÉNUE DE GAZ OU VAPEURS
INFLAMMABLES
DANGER D’EXPLOSION – SUBSTITUTION DE N’IMPORTE COMPOSANT PEUT NUIRE A LA
COMFORMITÉ DE CLASSE I, DIVISION 2 ET DE CLASSE II, DIVISION 2
SUITABLE FOR USE IN CLASS I, DIVISION 2,
GROUPS A, B, C AND D HAZARDOUS LOCATIONS.
SUITABLE FOR USE IN CLASS II, DIVISION 2,
GROUPS F AND G HAZARDOUS LOCATIONS.
Wiring practices must meet applicable eletrical codes.
Les procédures des câblage doivent répondre aux codes électriques en vigueur.
Bei der Verdrahtung sind die geltenden elektrotechnischen Sicherheitsvorschriften zu befolgen.
Le procedure adottate per i cavi devono rispettare le codifiche elettriche applicabill.
A instalação da fiação deve atender aos códigos elétricos aplicáveis.
Las prácticas de instalación eléctrica deben seguir los códigos electricos.
www.rockwellautomation.com
ATTENTION
ATTENTION
ACHTUNG
ATTENZIONE
ATENÇÃO
ATENCIÓN
ATTENTION
ATTENTION
ACHTUNG
ATTENZIONE
ATENÇÃO
ATENCIÓN
ATTENTION
ATTENTION
ACHTUNG
ATTENZIONE
ATENÇÃO
ATENCIÓN
IP66
25
Publication 855XM-IN001E-EN-P-JANUARY 2023
DIR 10001361466 (Version 04)
2) Introduction
May be used with gases in groups:
Group IIA propane
Group IIB ethylene
Group IIC hydrogen / acetylene
Having a temperature classification (for Gas applications) of:
T1 450ºC
T2 300ºC
T3 200ºC
T4 135ºC
May be used with Dust types:
Group IIIA combustible flyings
Group IIIB non-conductive dust
Group IIIC conductive dust
Maximum Surface Temperature for Dust Applications:
90ºC
(2)
The 855XM alarm horn is CE marked for compliance with the European
Explosive Atmospheres Directive 2014/34/EU and the European EMC
Directive 2014/30/EU
The 855XM alarm horn is UKCA marked for compliance with the United Kingdom
Explosive Atmospheres Regulation SI 2016/1107 and the United Kingdom EMC
Regulation SI 1016/1091
E305533
3) Ratings and Markings
ATEX / IECEx /UKEx Certifications
The 855XM complies with the following standards:
EN IEC 60079-0:2018 / IEC60079-0:2017 (Ed 7): Explosive Atmospheres - Equipment. General Requirements
EN IEC 60079-7:2015 +A1:2018 / IEC 60079-7:2018 (Ed. 5.1): Explosive Atmospheres - Equipment Protection by Increased Safety "e"
EN 60079-31:2014 / IEC 60079-31:2013 (Ed 2): Explosive Atmospheres - Equipment Dust Ignition Protection by Enclosure "t"
The 855XM horn is rated as follows:
CE marking UKCA marking
Zones, Gas / Dust Groups and temperature classifications.
When connected to an approved system the 855XM alarm horn may be installed in:
Zone 2 explosive gas air mixture not likely to occur in normal operation, and if it does, it will only exist for a short time.
Zone 22 explosive dust air mixture not likely to occur in normal operation, and if it does, it will only exist for a short time.
The EC-Type Examination Certificates DEMKO 15 ATEX1433X, IECEx UL 15.0070X and UL22UKEX2681X have been issued by UL.
This confirms compliance with the European ATEX Directive 2014/34/EU as well as the United Kingdom UKEx Regulation UKSI
2016/1107 (as amended by UKSI 2019:696) for Group II, Category 3G/D equipment. The unit carries the Community Mark and subject
to local codes of practice, may be installed in any of the EEA member countries. This instruction sheet describes installations which
conform to the current issue of EN60079-14/IEC60079-14 Electrical Installation in Hazardous Areas; EN60079-10-1 / IEC 60079-10-1
Explosive Atmospheres - Classification of Areas. Explosive Gas Atmospheres; EN60079-10-2 / IEC 60079-10-2 Explosive
Atmospheres - Classification of Areas. Explosive Dust Atmospheres.
The 855XM is an ATEX, IECEx, UKEx and UL certified alarm horn which produces a loud warning signal in a hazardous area. There
are 64 first stage alarm sounds which can be selected by internal switches. Each one can be externally changed to a second, third or
fourth stage alarm sound. The alarm horn may be used for Gas applications in Zone 2 / Class I Zone 2 / Class I, Division 2 as
well as for Dust applications in Zone 22 / Class II Zone 22 / Class II Division 2 / Class III Division 1 & 2. An 855XM combined alarm
horn & strobe is also available.
II 3G Ex ec IIC T4 Gc (Ta -40ºC to +50ºC)
II 3D Ex tc IIIC T90ºC Dc (Ta -40ºC to +50ºC)
May be used with gases in groups:
Group IIA propane
Group IIB ethylene
Group IIC hydrogen / acetylene
Having a temperature classification (for Gas applications) of:
T1 450ºC
T2 300ºC
T3 200ºC
T4 135ºC
May be used with Dust types:
Group IIIA combustible flyings
Group IIIB non-conductive dust
Group IIIC conductive dust
Maximum Surface Temperature for Dust Applications:
90ºC
(2)
The 855XM alarm horn is CE marked for compliance with the European
Explosive Atmospheres Directive 2014/34/EU and the European EMC
Directive 2014/30/EU
The 855XM alarm horn is UKCA marked for compliance with the United Kingdom
Explosive Atmospheres Regulation SI 2016/1107 and the United Kingdom EMC
Regulation SI 1016/1091
E305533
3) Ratings and Markings
ATEX / IECEx /UKEx Certifications
The 855XM complies with the following standards:
EN IEC 60079-0:2018 / IEC60079-0:2017 (Ed 7): Explosive Atmospheres - Equipment. General Requirements
EN IEC 60079-7:2015 +A1:2018 / IEC 60079-7:2018 (Ed. 5.1): Explosive Atmospheres - Equipment Protection by Increased Safety "e"
EN 60079-31:2014 / IEC 60079-31:2013 (Ed 2): Explosive Atmospheres - Equipment Dust Ignition Protection by Enclosure "t"
The 855XM horn is rated as follows:
CE marking UKCA marking
Zones, Gas / Dust Groups and temperature classifications.
When connected to an approved system the 855XM alarm horn may be installed in:
Zone 2 explosive gas air mixture not likely to occur in normal operation, and if it does, it will only exist for a short time.
Zone 22 explosive dust air mixture not likely to occur in normal operation, and if it does, it will only exist for a short time.
The EC-Type Examination Certificates DEMKO 15 ATEX1433X, IECEx UL 15.0070X and UL22UKEX2681X have been issued by UL.
This confirms compliance with the European ATEX Directive 2014/34/EU as well as the United Kingdom UKEx Regulation UKSI
2016/1107 (as amended by UKSI 2019:696) for Group II, Category 3G/D equipment. The unit carries the Community Mark and subject
to local codes of practice, may be installed in any of the EEA member countries. This instruction sheet describes installations which
conform to the current issue of EN60079-14/IEC60079-14 Electrical Installation in Hazardous Areas; EN60079-10-1 / IEC 60079-10-1
Explosive Atmospheres - Classification of Areas. Explosive Gas Atmospheres; EN60079-10-2 / IEC 60079-10-2 Explosive
Atmospheres - Classification of Areas. Explosive Dust Atmospheres.
The 855XM is an ATEX, IECEx, UKEx and UL certified alarm horn which produces a loud warning signal in a hazardous area. There
are 64 first stage alarm sounds which can be selected by internal switches. Each one can be externally changed to a second, third or
fourth stage alarm sound. The alarm horn may be used for Gas applications in Zone 2 / Class I Zone 2 / Class I, Division 2 as
well as for Dust applications in Zone 22 / Class II Zone 22 / Class II Division 2 / Class III Division 1 & 2. An 855XM combined alarm
horn & strobe is also available.
II 3G Ex ec IIC T4 Gc (Ta -40ºC to +50ºC)
II 3D Ex tc IIIC T90ºC Dc (Ta -40ºC to +50ºC)
The 855XM horn is rated as follows:
Installation must be carried out in compliance with the National Electric Code / Canadian Electric Code
Ambient Temperature Range:
-40ºC to +70ºC (Class I Div 2 only)
-40ºC to +50ºC
Ingress Protection Ratings:
The product is rated for ingress Protection as follows:
IP rating per EN60529: IP66
Type rating per UL50E: 4 / 4X / 3R / 13
To maintain the ingress protection rating, the two M20 cable entries must be fitted with suitably rated cable entry and/or blanking
devices during installation.
Electrical Ratings
Catalog Number Nominal Voltage Voltage Range Nom. Current Max. Current
855XM-HGMD30D 24V DC 10-30V DC 313mA @ 24V DC313 mA
855XM-HGMA10D 115V AC 115V AC +/-10% 60Hz 89 mA
855XM-HGMA20D 230V AC 230V AC +/-10% 50Hz 52mA
(3)
Class I Div 2 ABCD T3C Ta -40ºC to +70ºC
Class I Div 2 ABCD T4 Ta -40ºC to +65ºC
Class I Div 2 ABCD T4A Ta -40ºC to +50ºC
Class II Div 2 FG T5 Ta -40ºC to +50ºC
Class II Div 2 FG T6 Ta -40ºC to +45ºC
Class III Div 1 & 2 Ta -40ºC to +50ºC
91mA @ 126.5V DC
72mA @ 253V DC
Class / Zone ratings- US
The 855XM complies with the following standards:
The 855XM horn is rated as follows:
Class I, Zone 2 AEx ec IIC T4 Gc (Ta -40ºC to +50°C)
Zone 22 AEx tc IIIC T90°C Dc (Ta -40ºC to +50°C)
Installation must be carried out in compliance with the National Electric Code.
Class / Zone ratings- Canada
The 855XM complies with the following standards:
The 855XM horn is rated as follows:
Installation must be carried out in compliance with the Canadian Electric Code
Class / Division Ratings for US and Canada
The 855XM horn complies with the following standards:
Ex ec IIC T4 Gc X (Ta -40ºC to +50°C)
Ex tc IIIC T90°C Dc (Ta -40ºC to +50°C)
Class II Div 2 FG T5 (Ta -40ºC to +50°C)
UL 60079-0 (Ed. 7): Explosive Atmospheres - Part 0: Equipment - General Requirements
UL 60079-7 (Ed. 5): Explosive Atmospheres - Equipment Protection by Increased Safety "e"
UL 60079-31 (Ed. 2): Explosive Atmospheres - Equipment Dust Ignition Protection by Enclosure "t".
CAN/CSA C22.2 No. 60079-0 (Ed. 4) 02/2019: Explosive Atmospheres - Part 0: Equipment - General Requirements
CAN/CSA C22.2 No. 60079-7 (Ed. 2): Explosive Atmospheres - Equipment Protection by Increased Safety "e"
CAN/CSA C22.2 No. 60079-31 (Ed. 2): Explosive Atmospheres - Equipment Dust Ignition Protection by Enclosure "t"
UL 12.12.01-2021 (Ed. 9) / CAN/CSA C22.2 No. 213-17 (Ed. 3)
Installation must be carried out in compliance with the National Electric Code / Canadian Electric Code
Ambient Temperature Range:
-40ºC to +70ºC (Class I Div 2 only)
-40ºC to +50ºC
Ingress Protection Ratings:
The product is rated for ingress Protection as follows:
IP rating per EN60529: IP66
Type rating per UL50E: 4 / 4X / 3R / 13
To maintain the ingress protection rating, the two M20 cable entries must be fitted with suitably rated cable entry and/or blanking
devices during installation.
Electrical Ratings
Catalog Number Nominal Voltage Voltage Range Nom. Current Max. Current
855XM-HGMD30D 24V DC 10-30V DC 313mA @ 24V DC313 mA
855XM-HGMA10D 115V AC 115V AC +/-10% 60Hz 89 mA
855XM-HGMA20D 230V AC 230V AC +/-10% 50Hz 52mA
(3)
Class I Div 2 ABCD T3C Ta -40ºC to +70ºC
Class I Div 2 ABCD T4 Ta -40ºC to +65ºC
Class I Div 2 ABCD T4A Ta -40ºC to +50ºC
Class II Div 2 FG T5 Ta -40ºC to +50ºC
Class II Div 2 FG T6 Ta -40ºC to +45ºC
Class III Div 1 & 2 Ta -40ºC to +50ºC
91mA @ 126.5V DC
72mA @ 253V DC
Class / Zone ratings- US
The 855XM complies with the following standards:
The 855XM horn is rated as follows:
Class I, Zone 2 AEx ec IIC T4 Gc (Ta -40ºC to +50°C)
Zone 22 AEx tc IIIC T90°C Dc (Ta -40ºC to +50°C)
Installation must be carried out in compliance with the National Electric Code.
Class / Zone ratings- Canada
The 855XM complies with the following standards:
The 855XM horn is rated as follows:
Installation must be carried out in compliance with the Canadian Electric Code
Class / Division Ratings for US and Canada
The 855XM horn complies with the following standards:
Ex ec IIC T4 Gc X (Ta -40ºC to +50°C)
Ex tc IIIC T90°C Dc (Ta -40ºC to +50°C)
Class II Div 2 FG T5 (Ta -40ºC to +50°C)
UL 60079-0 (Ed. 7): Explosive Atmospheres - Part 0: Equipment - General Requirements
UL 60079-7 (Ed. 5): Explosive Atmospheres - Equipment Protection by Increased Safety "e"
UL 60079-31 (Ed. 2): Explosive Atmospheres - Equipment Dust Ignition Protection by Enclosure "t".
CAN/CSA C22.2 No. 60079-0 (Ed. 4) 02/2019: Explosive Atmospheres - Part 0: Equipment - General Requirements
CAN/CSA C22.2 No. 60079-7 (Ed. 2): Explosive Atmospheres - Equipment Protection by Increased Safety "e"
CAN/CSA C22.2 No. 60079-31 (Ed. 2): Explosive Atmospheres - Equipment Dust Ignition Protection by Enclosure "t"
UL 12.12.01-2021 (Ed. 9) / CAN/CSA C22.2 No. 213-17 (Ed. 3)
4) Special Conditions for Safe Use
2
Earth Ground connections should be made to the Internal Earth terminal on the PCB. The earth conductor should be at least equal
in size and rating to the incoming power conductors. The internal earth bonding wire connects the PCB earth terminal to the internal
earth ground terminal in the enclosure back box.
Check that the earth bonding wire between the two castings is secure and the ‘O’ ring seal is in place and in good condition.
Maintenance, Repair and Overhaul
Maintenance, repair and overhaul of the equipment should only be carried out by suitably qualified personnel in accordance with the
current relevant standards:
EN60079-19 / IEC60079-19 Explosive atmospheres - Equipment repair, overhaul and reclamation
EN 60079-17/ IEC60079-17 Explosive atmospheres - Electrical installations inspection and maintenance
Units must not be opened while an explosive atmosphere is present.
If opening the unit during maintenance operations a clean environment must be maintained and any dust layer removed prior to
opening the unit.
Electrostatic charging hazard - Clean only with a damp cloth
5) Installation
The 855XM horn should only be installed by trained competent personnel.
(4)
External ground connections should be made to the M5 earth stud, using a ring crimp terminal to secure the earth conductor to the
earth stud. The external earth conductor should be at least 4mm / AWG 11 in size.
Fig:1 Mounting hole147.0 (5.8”)
(9.7)
(.38”)
180.0 (7.1”)
(6.7)
(.26”)
Conditions of Use as stated on the Type Examination Certificate DEMKO 15 ATEX 1433X IECEx UL 15.0070X / UL22EKEX2681X:
The 855XM is not to be mounted with the horn facing upwards. The equipment shall only be used in end use with appropriately certified
cable entry devices and blanking plugs.
.
Installation
The product must only be installed by suitably qualified personnel in accordance with the latest issues of the relevant standards.
The installation of the units must also be in accordance with any local codes that may apply and should only be carried out by a
competent electrical engineer who has the necessary training.
The alarm horn is not to be mounted with the horn facing upwards.
The equipment has not been assessed as a safety related device (as referred to by Directive 2014/34/EU ANNEX II, clause 1.5 and
UKSI 2016/1107 Schedule , clause 22).
The cable entry temperature may exceed +70ºC / the cable branching point may exceed 80ºC. Therefore suitable heat resisting
cables and cable glands must be used, with a rated service temperature of at least 90ºC.
To maintain the ingress protection rating and mode of protection, the two M20 cable entries must be fitted with suitably rated cable
entry and/or blanking devices during installation. If a high IP (Ingress Protection) rating is required then a suitable sealing washer
must be fitted under the cable gland. For use in explosive gas atmospheres a minimum ingress protection rating of IP54 must be
maintained. For use in explosive dust atmospheres a minimum ingress protection rating of IP64 must be maintained.
Only the front cover is to be used for access to the enclosure for installation, service and maintenance. Once the product is opened,
the Type Rating cannot be maintained anymore unless a full verification of the gasket material is done and there is no damage.
Connections are to be made into the terminal blocks using solid or stranded wire, sizes 0.5-2.5mm
2
(AWG 20-14). Wire insulation needs
to be stripped 6-7mm (0.25”). Wires may be fitted securely with crimped ferrules. Terminal screws need to be tightened down with a
tightening torque of 0.56 Nm (5 Lb.-in.)
2
Earth Ground connections should be made to the Internal Earth terminal on the PCB. The earth conductor should be at least equal
in size and rating to the incoming power conductors. The internal earth bonding wire connects the PCB earth terminal to the internal
earth ground terminal in the enclosure back box.
Check that the earth bonding wire between the two castings is secure and the ‘O’ ring seal is in place and in good condition.
Maintenance, Repair and Overhaul
Maintenance, repair and overhaul of the equipment should only be carried out by suitably qualified personnel in accordance with the
current relevant standards:
EN60079-19 / IEC60079-19 Explosive atmospheres - Equipment repair, overhaul and reclamation
EN 60079-17/ IEC60079-17 Explosive atmospheres - Electrical installations inspection and maintenance
Units must not be opened while an explosive atmosphere is present.
If opening the unit during maintenance operations a clean environment must be maintained and any dust layer removed prior to
opening the unit.
Electrostatic charging hazard - Clean only with a damp cloth
5) Installation
The 855XM horn should only be installed by trained competent personnel.
(4)
External ground connections should be made to the M5 earth stud, using a ring crimp terminal to secure the earth conductor to the
earth stud. The external earth conductor should be at least 4mm / AWG 11 in size.
Fig:1 Mounting hole147.0 (5.8”)
(9.7)
(.38”)
180.0 (7.1”)
(6.7)
(.26”)
Conditions of Use as stated on the Type Examination Certificate DEMKO 15 ATEX 1433X IECEx UL 15.0070X / UL22EKEX2681X:
The 855XM is not to be mounted with the horn facing upwards. The equipment shall only be used in end use with appropriately certified
cable entry devices and blanking plugs.
.
Installation
The product must only be installed by suitably qualified personnel in accordance with the latest issues of the relevant standards.
The installation of the units must also be in accordance with any local codes that may apply and should only be carried out by a
competent electrical engineer who has the necessary training.
The alarm horn is not to be mounted with the horn facing upwards.
The equipment has not been assessed as a safety related device (as referred to by Directive 2014/34/EU ANNEX II, clause 1.5 and
UKSI 2016/1107 Schedule , clause 22).
The cable entry temperature may exceed +70ºC / the cable branching point may exceed 80ºC. Therefore suitable heat resisting
cables and cable glands must be used, with a rated service temperature of at least 90ºC.
To maintain the ingress protection rating and mode of protection, the two M20 cable entries must be fitted with suitably rated cable
entry and/or blanking devices during installation. If a high IP (Ingress Protection) rating is required then a suitable sealing washer
must be fitted under the cable gland. For use in explosive gas atmospheres a minimum ingress protection rating of IP54 must be
maintained. For use in explosive dust atmospheres a minimum ingress protection rating of IP64 must be maintained.
Only the front cover is to be used for access to the enclosure for installation, service and maintenance. Once the product is opened,
the Type Rating cannot be maintained anymore unless a full verification of the gasket material is done and there is no damage.
Connections are to be made into the terminal blocks using solid or stranded wire, sizes 0.5-2.5mm
2
(AWG 20-14). Wire insulation needs
to be stripped 6-7mm (0.25”). Wires may be fitted securely with crimped ferrules. Terminal screws need to be tightened down with a
tightening torque of 0.56 Nm (5 Lb.-in.)
5
6
7
8
9
10
advertisement
Key Features
- UL certified
- 64 alarm tones
- Multiple stage options
- Gas and dust detection
- IP66 rating
- Compact design
Related manuals
Frequently Answers and Questions
What are the different zones and classes that the 855XM horn can be used in?
The 855XM can be used in Zone 2, Zone 22, Class I Zone 2, Class I Division 2, Class II Zone 22, Class II Division 2, and Class III Division 1 & 2 for both gas and dust applications. Refer to the installation instructions for specific details on each zone and class.
How do I select the desired alarm tone for the 855XM horn?
The 855XM has 64 different tones that can be selected using the tone setting DIP switches found on the PCB. You can find the switch settings for each tone in the tone selection table.
What type of cables should I use with the 855XM horn?
Due to the compact design of the unit, it's crucial to use heat resisting cables and cable glands rated for 90°C. You can find detailed information regarding cable routing and selection in the manual.
advertisement