Wolf ATEX Operation And Maintenance Instruction 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.

LL-366 Issue 16

DF433

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 & Input

Fuse Rating

Output Voltage & Output Fuse

Rating

Example of compatible lighting sets:

GRP/
Stainless steel

230V, 2Amp (aM) 24V, 16Amp (gG) Up to 4 x LL-500

or up to 4 x WF-300

or up to 8 x LX-400

or up to 4 x LL-24 @ 20m*

GRP/
Stainless steel

110V, 4Amp (aM) 24V, 16Amp (gG)

GRP/
Stainless steel

230V, 2Amp (aM) 24V, 10Amp (gG) Up to 2 x WF-300 @ 50m††

or up to 3 x LL-500 @ 35m†

or up to 3 x WF-300 @ 35m†

or up to 6 x LX-400 @ 35m‡

GRP/
Stainless steel

110V, 4Amp (aM) 24V, 10Amp (gG)

GRP/
Stainless steel

230V, 2Amp (aM) 24V, 8Amp (gG) Up to 4 x LL-420

or up to 2 x LL-420 + 2 x WF-300

or up to 2 x LL-420 + 2 x LL-500
or up to 2 x LL-420 + 4 x LX-400

or up to 2 x LL-24 @ 50m**

GRP/
Stainless steel

110V, 4Amp (aM) 24V, 8Amp (gG)

GRP/
Stainless steel

230V, 2Amp (aM) 24V, 6Amp (gG)

Up to 4 x LL-420/20 (20m cable)

GRP/
Stainless steel

110V, 4Amp (aM) 24V, 6Amp (gG)

The fuse ratings are for the GRP and Stainless Steel 400VA transformers supplied by Wolf Safety.

For transformers with part numbers suffixed /2FXX equipped with 2 off output fuses (1 fuse per side), the permissible total number of lights will

increase. However this increase must not exceed the fuse rating and/or VA rating of the transformer and the maximum cable lengths in the table

below must be observed.

Transformers – 230 or 110 Volt Input, 24 Volt Output – Cable length and size

Product Plug type Cable type Cable size Max. cable length from transformer socket
LL-500/WF-300 ATX SY 4mm2 35m total
WF-300 ATX SY 4mm2 50m††(2 lamps, 10A o/p fuse)
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 2.5mm2 20m total
LL-500/WF-300 Ceag/ATX Ship’s 2.5mm2 35m†(3 lamps, 10A o/p fuse)
LX-400 Ceag/ATX SY/Ship’s 2.5mm2 35m‡(6 lamps, 10A o/p fuse)
LL-420 (10m cable) Ceag/ATX HO7FRN 1.0mm2 10m total
LL-420/20 (20m cable) Ceag/ATX HO7FRN 1.0mm2 20m total
LL-24 Ceag/ATX SY/Ship’s 2.5mm2 20m*(4 lamps, 16A o/p fuse)
LL-24 Ceag/ATX SY/Ship’s 2.5mm2 50m**(2 lamps, 8A o/p fuse)

‐ 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, dependent on the configuration - see

above; no other equipment must be connected to the transformer.

‐ 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 with a 16A (gG) fuse or 35m of cable with a 10A (gG) fuse.
‐ LL-420 handlamp must be connected directly to a transformer socket.
‐

Transformers – 230 Volt Input, 110 Volt Output – Fuse Values

Transformer Type Input Voltage and Input Fuse Rating Output Voltage and Output 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 4mm

2

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

Transformers – 230 or 110 Volt Input, 12 Volt Output – Fuse Values

Transformer Type Input Voltage &

Input Fuse Rating

Output Voltage & Output

Fuse Rating

Example of compatible lighting sets:

GRP/ Stainless steel 230V, 2Amp (aM) 12V, 10Amp (gG)

Up to 2 x LL-12 @ 15m cable

GRP/ Stainless steel 110V, 4Amp (aM) 12V, 10Amp (gG)
GRP/ Stainless steel 230V, 2Amp (aM) 12V, 6Amp (gG)

Up to 1 x LL-12 @ 35m cable

GRP/ Stainless steel 110V, 4Amp (aM) 12V, 6Amp (gG)

The fuse ratings are for the GRP and Stainless Steel 400VA transformers supplied by Wolf Safety.

Transformers – 230 or 110 Volt Input, 12 Volt Output – Cable length and size

Product Plug type Cable type Cable size Max. cable length from transformer socket
LL-12 ATX SY 2.5mm2 15m (2 lamps, 10A o/p fuse)
LL-12 ATX SY 2.5mm2 35m (1 lamps, 6A o/p fuse)

‐
‐ A total of 1 or 2 x LL-12 lamps may be connected to a 12v output transformer, dependent on the configuration - see above; no other equipment must be

connected to the transformer.
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: [e-mail]

Website: www.wolf-safety.co.uk