Wolf ATEX - User Manual

LL-366 Issue 16
DF433
Wolf ATEX 400VA GRP Transformer
Operation and Maintenance Instructions
Please Retain – Read Before Use
Models
LL-114, LL-114/RIG, LL-114/RB, LL-114/CEAG,
LL-214, LL-214/RIG, LL-214/RB, LL-214/CEAG,
LL-221/(Suffixes define cable, plug, socket and fuse options)
LL-114/ (Suffixes define cable, plug, socket and fuse options)
LL-214/ (Suffixes define cable, plug, socket and fuse options)
This Wolf ATEX Transformer has a durable GRP 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 T3 temperature class permits.
Approval Codes/Certification:
II 2 GD Ex ed IIC T3 IP66
Ex tD A21 T195ºC
(Tamb = -20 to +55ºC)
Supply Voltage: 230VAC or 110VAC +6%, -10%
Output Voltage: 110VAC or 24VAC
Check equipment label for confirmation of exact rating.
Certificate ‘X’ suffix - Do not open Transformer while energized.
.
Notified Body LCIE Paris – Head Office
33, Avenue du General Leclerc
92260 Fontenay-aux-Roses
France
Notified body number: 0081
See attached ATX EC Declaration of Conformity.
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 GRP (Glass Reinforced
Polyester) 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 must not be opened when energized, even after
disconnection from the mains supply a delay of 5 minutes should be
observed before opening.
5. Ensure all replacement fuses are of the correct type and current rating.
6. 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.
2. The fuse ratings used in 24 Volt output transformers 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 4mm
2
cable or 20 metres of
2.5mm
2
cable. 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. 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%).
3. The fuse ratings used in 110Volt output transformers 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 150 metres of 4mm
2
cable or 90 metres of 2.5mm
2
cable. 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.
4. 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.
5. All Transformers have terminal blocks suitable for up to 4mm
2
live,
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 GRP 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.
Ingress protection level: IP66
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
230V
2Amp
(aM)
LL-1002 110V
4Amp
(gG)
LL-1007
Output
Voltage
Output
fuse
Wolf Part
Number
Transformers with part No suffix /1F10
or /2F10 (2 x O/P fuse)
24V
10Amp
(gG)
LL-1110
Transformers with part No suffix /1F8 or
/2F8 (2 x O/P fuse) )
24V
8Amp
(gG)
LL-1024
Transformers with part No suffix /1F6 or
/2F6 (2 x O/P fuse)
24V
6Amp
(gG)
LL-1016
LL-376 230/110 input - 24v output 400VA transformer component.
LL-378 24 volt ATX socket.
For further spares or if your transformer does not appear in the list above
please contact Wolf Safety.
The Wolf Safety Lamp Co. Ltd has a policy of continuous product
improvement. Changes in design details may be made without prior notice.

Summary

Important Usage and Safety Instructions

Read and Retain Instructions

Emphasizes the importance of reading and keeping the transformer manual for future reference.

Rating Label Verification

Instructs users to check the rating label for suitability with supply, ambient temperature, and IP rating.

Material Suitability

Advises users to ensure GRP housing and plastic sockets are suitable for the operating atmosphere.

Energized Operation Prohibition

Warns against opening the transformer when energized and recommends a 5-minute delay after disconnection.

Fuse Replacement

Stresses the importance of using correct type and current rating for all replacement fuses.

Maintenance Procedures

Isolation and Waiting Period

Requires isolating the transformer from mains and waiting 5 minutes before opening.

Adherence to Standards

Highlights the necessity of maintaining transformers according to EN60079-17 requirements.

Visual Cable Inspection

Mandates a visual check of internal cables for good condition and absence of damage or degradation.

Connection Security Check

Ensures all internal connections are checked for correct and secure fitting.

Gasket Inspection

Requires inspection of enclosure gaskets to ensure the IP66 rating is maintained.

Fuse and Cover Replacement

Advises caution when replacing fuses and securing the screwed cover fully.

Usage of ATEX Transformers

Load Capacity and Fuse Operation

Explains the 400 VA limit and potential fuse blowing if exceeded, advising load checks.

Cable Length and Size Limitations (24 V)

Details recommended cable limits for 24V output to ensure correct fuse operation and safety.

Cable Length and Size Limitations (110 V)

Details recommended cable limits for 110V output to ensure correct fuse operation and safety.

Disposal of Waste Material

Compliance with Regulations

Instructs to dispose of packaging, transformers, and parts according to national regulations.

Transformer Fuse Values and Cable Guidance

230;110 Volt Input, 24 Volt Output Fuse Values

Lists fuse values and compatible lighting sets for 24V output transformers.

230;110 Volt Input, 24 Volt Output Cable Length

Provides recommended cable lengths and sizes for 24V output transformers.

230 Volt Input, 110 Volt Output Fuse Values

Specifies fuse values for 110V output transformers.

230 Volt Input, 110 Volt Output Cable Length

Details cable lengths for 110V output transformers.

230;110 Volt Input, 12 Volt Output Fuse Values

Lists fuse values and compatible lighting sets for 12V output transformers.

230;110 Volt Input, 12 Volt Output Cable Length

Provides cable lengths for 12V output transformers.

Wolf ATEX Specifications

General

Brand	Wolf
Model	ATEX
Category	Transformer
Language	English