Wolf ATEX 400VA Troubleshooting guide

LL-1011 Issue 2
DF378
Wolf ATEX 400VA Stainless Steel Transformer
Operation and Maintenance Instructions
Please Retain – Read Before Use
Models
LL-124, LL-124/(suffix used to define cable & plug used),
LL-224, LL-224/(suffix used to define cable & plug used).
EC Declaration of Conformity
This Wolf ATEX Transformer has a durable marine grade stainless steel
enclosure housed in a stainless steel skid, within the enclosure is a
transformer component with maximum load of 400 VA. The Transformer is
approved as Group II equipment for use in zone 1 & 2 potentially explosive
gases, vapours, mists and dusts where the T4 temperature class permits.
Approval Codes/Certification:
II 2 GD Ex ed IIC T4 IP66
Ex tD A21 IP66 T135ºC
(Tamb = -20 to +40ºC) 350 VA
(Tamb = -20 to +30ºC) 400 VA
Supply Voltage: 230VAC or 110VAC +6%, -10%
Output Voltage: 24VAC
Check equipment label for confirmation of exact rating.
Certificate ‘X’ suffix - observe variation in ambient temperature at
the higher power usage, do not open while energized.
EC Type examination certificate: Sira08ATEX3182X
Notified Body Baseefa Ltd,
Rockhead Business Park, Staden Lane,
Buxton, SK17 9RZ, UK
Notified body number: 1180
Harmonised standards applied:
EN60079-0:2006 EN61241-0:2006
EN60079-1:2007 EN61241-1:2004
EN60079-7:2007
Ingress protection level: IP66 to EN60529:1992
This Transformer is compliant with the 2004/108/EC EMC Directive.
The product is CE marked showing compliance with all relevant EC Directives.
Alex Jackson - Managing Director
Wolf Safety Lamp Company Ltd.
IMPORTANT
1. Read this leaflet carefully before commencing to use the Transformer
and retain it for future use.
2. Check the rating label to ensure the Transformer is suitable for the
supply provided, ambient temperature present and IP rating.
3. The Transformer housing is constructed from marine grade stainless
steel enclosure and the mounted sockets are plastic, the end user must
ensure that these materials are suitable for the atmosphere the
transformer will be used in. Excessive force should not be used on
plastic components.
4. The Transformer should only be used with the sockets parallel to the
ground, with the lid uppermost, and mounted in the skid supplied.
5. The Transformer must not be opened when energized, even after
disconnection from the mains supply a delay of 5 minutes should be
observed before opening.
6. Ensure all replacement fuses are of the correct type and current rating.
7. Prices and design are subject to alteration without notice. All products
sold are subject to our conditions of sale. A copy of these instructions
with any relevant revisions can be found at www.wolf-safety.co.uk
USE OF ATEX TRANSFORMERS
1. The Transformer is designed to supply a maximum load of 400 VA, if
this is exceeded the internal output fuse may blow. Any apparatus
operated from the Transformer should be checked to ensure that the
maximum load is not exceeded. This maximum load is reduced to 350
VA for a +40ºC ambient.
2. The fuse ratings used in this Transformer have been selected for use
with Wolf temporary lighting products. For the fuses to provide the
required level of protection the output cable to any connected device
must be limited to a maximum 35 metres of 4mm2cable or 20 metres
of 2.5mm2cable. Longer cable lengths and smaller cable diameters
will increase cable impedance; this may prevent correct fuse
operation, resulting in overheating, damage to the Transformer and a
potentially unsafe condition in the safe or hazardous area.
3. It is the user’s responsibility to ensure that any cable configuration
used with this Transformer will not compromise the integral fuse
protection of the unit.
4. Apparatus with long cable lengths (>20m) must be checked to ensure
the calculated voltage drop will not prevent the apparatus from
operating within the specified voltage tolerance (+ 6%, -10%).
5. All Transformers have terminal blocks suitable for up to 4mm2live,
neutral and earth. Only one conductor should be fitted to each
terminal block, for screwed type terminal blocks all terminals should
be fully tightened down whether a conductor is fitted or not.
6. Approved cable glands must be used and be suitable for the type of
cable used. Any unused cable entries should be blanked off with an
approved stopper plug to maintain a minimum IP rating as marked on
the certification label.
MAINTENANCE
1. Isolate the Transformer from the mains and wait 5 minutes before
opening.
2. It is essential that all Transformers are maintained in accordance with
the requirements of EN60079-17
3. A visual check should be carried out to ensure all internal cable is in
good condition, and not suffering any sign of damage or degradation.
All internal connections should be checked to ensure that they are
correctly secured.
4. The condition of the gaskets on the marine grade Stainless Steel
enclosure should be inspected to ensure there is no breakdown in the
IP66 rating.
5. If changing the input or output fuse care should be taken to replace
with the correct type of fuse and secure the screwed cover on fully.
6. IMPORTANT. No modifications are permitted to the transformer.
DISPOSAL OF WASTE MATERIAL
Disposal of packaging, Transformer and associated parts should be carried
out in accordance with national regulations.
WARNING: USE ONLY GENUINE WOLF REPLACEMENT PARTS.
Spares list:-
Input
Voltage Input Fuse Wolf Part Number Output Voltage Output fuse Wolf Part
Number
110V 4Amp
(aM) LL-377 24V 16Amp (gG) LL-379
230V 2Amp
(aM) LL-1002 24V 16Amp (gG) LL-379
LL-1078 230 V input – 24 V output transformer component
LL-1077 110 V input – 24 V output transformer component
LL-378 24 volt ATX socket
Further spares are available on request.
The Wolf Safety Lamp Co. Ltd has a policy of continuous product
improvement. Changes in design details may be made without prior notice.
Wolf Safety Lamp Company
Saxon Road Works, Sheffield, S8 0YA
Tel: [phone] Fax: [phone]
E-mail: [email protected]o.uk Website: www.wolf-safety.co.uk

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08/11/2013

WolfATEX400VATransformerUsageGuidanceDocument
Followingaredetailsoffusevaluesandcablelengthandsizethatarerecommendedforuse
withWolfATEXTransformers.
Transformers–230or110VoltInput,24VoltOutput–FuseValues
TransformerTypeInputVoltageandInputFuseRatingOutputVoltageandInputFuseRating
GRP/Stainlesssteel230V,2Amp(aM)24V,16Amp(gG)
GRP/Stainlesssteel110V,4Amp(aM)24V,16Amp(gG)
ThefuseratingsarefortheGRPandStainlessSteel400VAtransformerssuppliedbyWolfSafety.

Transformers–230or110VoltInput,24VoltOutput–Cablelengthandsize
ProductPlugtypeCabletypeCablesizeMaximumcable
length
LL‐500/WF‐300ATXSY4mm235mtotal
LX‐400ATXSY2.5mm220mtotal
LL‐500/WF‐300/LX‐400CeagSY2.5mm220mtotal
LL‐500/WF‐300/LX‐400Ceag/ATXShip’sBraided2.5mm220mtotal

‐Atotalof4xLL‐500orWF‐300lights,oratotalof8xLX‐400lights,canbeconnectedtoa
400VAtransformeraslongasmaximumcablelengthlimitsarefollowed.
‐LL‐500andWF‐300lampscannotbelinkedat24V.
‐LX‐400lamps(upto4units)canbelinkedwithatotalofnomorethan20mofcable.
Transformers–230VoltInput,110VoltOutput–FuseValues
TransformerTypeInputVoltageandInputFuseRatingOutputVoltageandInputFuseRating
GRP230V,2Amp(aM)110V,4Amp(gG)
ThefuseratingsarefortheGRPandStainlessSteel400VAtransformerssuppliedbyWolfSafety.

Transformers–230VoltInput,110VoltOutput–Cablelengthandsize
ProductTypeMaximumNumberof
LampsPerTransformer
MaximumCableLength
4mm2
MaximumCableLength
2.5mm2
LL‐5005150metres110metres
WF‐3005150metres110metres
LX‐40012150metres110metres

ForguidanceontheuseofanyotherproducttypeorcablesizeandlengthwithWolfATEX
TransformerspleasecontactWolfSafetydirectly:‐info@wolf‐safety.co.uk
Wolf Safety Lamp Company
Saxon Road Works, Sheffield, S8 0YA
Tel: [phone] Fax: [phone]
E-mail: [email protected]o.uk Website: www.wolf-safety.co.uk
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