INSTRUCTION MANUALEXPLOSION PROOF TYPE LED LIGHTING FITTINGS WLGPA
Thank you very much for purchasing our EXPLOSION PROOF TYPE LED LIGHTING FITTINGS

Be sure tofollow theinstructions.

Be sure toturn off thepower

Disassembly& conversion
prohibited.

Don't usenear a water
source.

Be sure toground.

Prohibited.

Don't touch.

CautionBe carefulof ignition.

WARNING
The type of protection of this product is as follows:

Ex nA mc IIC t6 Gc Ex tD A21 IP66 T85°C
GB 3836.1-2010
GB 3836.8-2014

GB 12476.1-2013
GB 12476.5-2013

Usable in hazardous areas of zone 2 , zone 21 and zone 22 where there is explosive atmospheres.
The product should be of the flameproof type suitable for each hazardous area.
Use of an unsuitable product might cause an explosion or fire.
All products need to be used within the specified ambient temperature:-20°<=Ta<=55°C
If the ambient temperature is out of the range, an explosion or fire might result.
For electrical connection, be sure to connect the wires in the terminal box securely using crimp-type terminals, etc.
and conduct insulation treatment. An inadequate connection or inadequate insulation might cause a contact failure,leading to an explosion, fire or electric shock.
The product should be mounted properly according to the instruction manual, on a surface robust enough to
support its weight.
Improper installation might cause fall of the product, an electric shock or injury.
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WARNING
When leading the power cable into the product, be sure to follow the technical standards for electricalequipment and the guide for the explosion protection of factory electrical equipment. Inadequate cableconnection or poor waterproofing might cause an explosion, fire or electric shock.
In grounding work, follow the technical standards for electrical equipment and the guide for the explosion
protection of factory electrical equipment. Inadequate grounding might cause an explosion, fire or electricshock.
Don’t convert the product.
Conversion might cause fall of the product, an explosion, fire or electric shock.
Don’t open or loosen any part unless necessary. Confirm that the screws, bolts and the like are fastenedtightly. A loose part might cause an explosion, fall, fire or electric shock.
For outdoor use, waterproof the screw connections and the entries of the terminal box to prevent rainwater
infiltration. For the stanchion type, waterproof the screw connections of the stand pole to prevent rainwater
infiltration. Inadequate waterproofing might cause a fire or electric shock.
Prior to maintenance or inspection, be sure to turn off the power and wait at least ten minutes before opening
the enclosure. An explosion, fire or electric shock might result.
If you continue to use the product in an abnormal condition (smoke, odor, etc.), an explosion, fire or electric
shock might result. If you detect an abnormality, immediately turn off the power switch. Confirm that theabnormal condition has been eliminated and have it repaired by a specialist.
The components once removed for cleaning or maintenance should be replaced properly according to theinstruction manual. An incorrectly placed component might cause an explosion or fall, resulting in an injury orproperty damage.
The non-metallic coating is painted on the surface of the product and the non-metallic label is attached on
the surface of the product, electrostatic charge may cause an explosion hazard. Avoid any actions that cause
the generation of electrostatic charge, such as rubbing with a dry cloth on coating surface of the product.
Don’t cover the product with an inflammable material such as cloth or paper nor put anything in the product.
Such a material or thing might cause an explosion or fire.

CAUTION
Don’t use the product at a voltage other than the voltage indicated on the nameplate. The voltage variation
should be within ±6% of the rating. Otherwise a damage, fire or electric shock might result.
Don’t use the product at a frequency other than the local power supply frequency (50 or 60 Hz).
A wrong frequency might cause a fire.
The product should be installed by a qualified person.
Installation by an unqualified person is legally prohibited.
Never touch the lamp and its surroundings while it is on or just after it is turned off.
The lamp and its surroundings are very hot. An accidental touch might burn yourself.
Because this product is painted non-metallic coating , please refer to the note below.
・Avoid friction ・No dry cleaning ・Do not mount in areas with flowing, non-conductive products
To ensure brightness and safety, carry out cleaning and inspection periodically. （If the product is using in
explosive dust area, regular dust cleaning must be done but don't clean the surface by air gun. ）If you find a problem, stop using he product and have it repaired by a specialist.

2Start of Use■Before use(1) Prior to installation, check if the product is as per your order.

(2) Check for a loose or damaged part due to an accident in transit, etc.
■Performance of the product(1) The electrical characteristics of the product are as follows:
ModelLED Wattage

WLGPA09041

9×4W

Input Voltage

Frequency

Input Current

(AC)

(AC)

220-240V

50/60Hz0.175-0.16 A

Input Wattage
37W

Instructions for model symbols

WLGPA 09 04 1①②

③

④

⑤

⑥

① WL: World model, LED product② ZI: Increased safety and made of plastic③ Version symbol④ LED lamp tube watt: 09:9W⑤ Lamp quantity: 04::4pcs⑥ Installation method 1: Direct ceiling attachment.

Use■ The LEDs are turned on by applying the rated voltage to the power line of the product.

Assembly and Installation■ Install the product properly following the instruction manual.

■Cautions in connection to the connectors

For the cable gland and blanking elements, besure to use a certified Ex component .(Entrysize:M20×1.5)※ Cable glands can be installed in two places.

1 Attach the lighting fitting on the mounting
surfacefirmlyinusing

M6

bolts

places.(Tightening torque:4.6-5.1N.m)

3

at

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2 Open the enclosure with loosen six bolts andconnect the power wires(white and brown) inside
the connectors properly.

Don’t open other than the target parts.

3 Screw in the 6 bolts and fasten it securely.

※Water may enter through the end of the cableon the outside of the lighting fixture due to thedifference in pressure with the outside air. Make
sure to waterproof the cable ends properly.

Maintenance(1) In cleaning the fitting, gently wipe with water or mild detergent. Don’t use thinner, benzene or alkaline detergent.
Such chemicals might cause discoloration or deterioration in quality and strength, resulting in a damage.
(2) Prior to maintenance, be sure to turn off the power.
(3) Conduct inspection properly referring to the table below.
(4) If a repair is needed, consult us.
Check Point

Inspection

Appearance

VisualBolts/screws

Visual, Tactile

Gaskets, etc.

VisualCable entry

Visual, Tactile

JointsVisual, Tactile

Temperature rise

Thermometer,
TactileConfirm:- No rust- No scratches- No loose parts- No rust- No cracks- No serious deformation- No damage or degradation- No loose parts- No loose parts- No stained insulator- The surface temperature
should be not more than85°C.

4Remedy- Clean.
- Anticorrosion
treatment- Retighten.
- Clean.
- Replace.
- Replace.
- Retighten.
- Retighten.
- Clean.
- Investigate the cause.
- Turn off the power.

CAUTIONS
1. Prior to installation, be sure to turnoff the power.
2. Confirm that the screws and bolts are fastened properly and tightly.
3. When installing the fitting, be sure to connect external wires inside a specified part of the fitting. Don’t open any other part.
4. The supply voltage variation should be within±6%of the rating.
5. The lighting fitting must be used in a location where it can be used safely according to its flameproof protection type (indicated on thebody).
6. Be sure to use certified Ex components to plug the entries of the terminal box which are not used.
7. For the cable gland, be sure to use a certified Ex component.
8. Be sure to use Ex component certified products and cables which are suitable for the operating temperature range, referring to thefollowing.
Plug：-20°℃to+85℃

Cable gland：-20℃to+85℃

Cables：-20°C to+85°℃

9. Confirm that the fitting is adequately grounded.
10. Prior to maintenance or inspection, be sure to turnoff the power.
11. Don't use the product in a corrosive gas atmosphere which contains hydrochloric acid, high-concentration chlorine gas

or the like.
12. To prevent shortening of the service life, avoid turning on the fitting indirect sunlight.
13. To avoid noise or malfunctioning, don't use a radio, television or wireless infrared remotecontrol near the fitting.
14. After turning off the power, wait atleast ten minutes before opening the main body. An explosion might result.
15. The product must be mounted on a sturdy wall or structure which is virtually vibration-free and less susceptible to damage.

Otherwise, it might fall or be damaged.
16. Locking bolts of strength class A 2-50 are used on the main body. Never remove them. A fire, electric shock or explosion might result.
17. Repair of the flame path is not intended in the special condition of safe use in the instruction manual.
18. The purchaser should make the manufacturer aware of any External effects or Aggressive substances that the equipment maybe

exposed to.
19. Don’t move the product only holding the guard, please move it carefuuly.

DIsassembleNot allowed to disassemble this lamp. Explosion-proof joint is not allowed to be repaired

CONTACTSEIWA ELECTRIC MFG. CO., LTD.

■For further information on the product, contact our offices below (let us know the model name indicated on
the nameplate).
Head Office

36 Shinike, Terada, Joyo, Kyoto Pref. 610-0192 Japan
Phone +81 774 55 8181

Fax +81 774 58 2034

Tokyo Branch Yanagibashi First Bldg., 2-19-6 Yanagibashi, Taito-ku, Tokyo 111-0052 Japan
Phone +81 3 5833 8946 Fax +81 3 5833 8971
BANGKOK REP. OFFICE

2 Jasmine City Building, 17th Floor, Sukhumvit Soi 23 (Prasarn Mitr),
Sukhumvit Road, Klongtoey Nue, Wattana, Bangkok 10110

CHINA OFFICE No.8,Xuzhou Road,Changshu,Jiangsu 215500,China
Phone +86 512 5284 9957

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Phone +66(0)2-204-5143

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