Larson Electronics EPLRL-50-16.4-HR-SWB User manual

EPLRL-50-16.4-HR-SWB
Larson Electronics, LLC Phone: [phone] Fax: [phone] www.larsonelectronics.com 1of 5
Explosion Proof LED Paint Spray Booth Light
3rd Gen - Class 1 Div 1 - Class 2 Div 1
Instruction Manual
Thank you for your purchase of the Larson Electronics EPLRL-50-16.4-HR-SWB.
WARNING:
READ CAREFULLY BEFORE INSTALLING FIXTURE. RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE.
CRITICAL SAFETY INSTRUCTIONS:
•INSTALLATION SHOULD ONLY BECONDUCTED BY A QUALIFIED ELECTRICIAN IN ACCORDANCE WITH NEC AND ANY
RELEVANT LOCAL BUILDING CODES.
•RISK OFFIRE OR ELECTRIC SHOCK. FIXTURE INSTALLATION REQUIRES KNOWLEDGE OF FIXTURE'S ELECTRICAL
SYSTEMS. IFNOTQUALIFIED, CONTACT A QUALIFIED ELECTRICIAN.
•BE CERTAIN ELECTRICAL POWER IS OFF BEFORE AND DURING INSTALLATION AND MAINTENANCE.
•MAKE SURE THE SUPPLY VOLTAGE IS THE SAME AS THE FIXTURE'S RATED VOLTAGE.
•TO PREVENT WIRING DAMAGE OR ABRASION, DO NOT EXPOSE WIRING TO EDGES OF SHEET METAL OR SHARP
OBJECTS. SUITABLE FOR DAMP LOCATIONS.
WARNING
TO AVOIDTHE RISKOF FIRE,EXPLOSION OR ELECTRIC SHOCK, THIS PRODUCT SHOULD BE INSTALLED,
INSPECTEDAND MAINTAINEDBY A QUALIFIED ELECTRICIANONLY, IN ACCORDANCEWITHALL
APPLICABLEELECTRICAL CODES.
TO AVOIDELECTRIC SHOCK:
•BE CERTAIN ELECTRICAL POWER IS OFF BEFORE AND DURING INSTALLATION AND MAINTENANCE.
•PRODUCT MUST BE CONNECTED TO A WIRING SYSTEM WITH AN EQUIPMENT-GROUNDING
CONDUCTOR.
TO AVOID EXPLOSION:
•MAKE SURE THE SUPPLY VOLTAGE IS WITHIN THE VOLTAGE RATING.
•ENSURE THE MARKED T RATING IS LESS THAN THE IGNITION TEMPERATURE OF THE HAZARDOUS
ATMOSPHERE.
•DO NOT OPERATE IN AMBIENT TEMPERATURES ABOVE THOSE INDICATED ON THE PRODUCT
NAMEPLATE.
•DO NOT OPERATE IF THE LENS, CORD, SEALS, HOUSING, RECEPTACLES, ETC. IS CRACKED OR
DAMAGED. IF SO, DISCONTINUE USE AND CONTACT MANUFACTURER FOR REPLACEMENT PARTS.
•ALL FASTENERS SHOULD BE PROPERLY SEATED.
WARNING:
USER SHOULD BE TRAINED IN THE PROPER USE AND MAINTENANCE OF THIS DEVICE. WHEN EXTENSION
CORD IS CONNECTED TO A POWER SOURCE IN HAZARDOUS AREA, PLUG AND MATCHING RECEPTACLE
MUST BE SUITABLE FOR HAZARDOUS LOCATION INVOLVED. IMPROPER USE OF THIS DEVICE, ASSOCIATED
PLUG, RECEPTACLE, AND CORD CAN LEAD TO SERIOUS INJURIES OR DEATH TO PERSONNEL.
PERIODIC INSPECTION OF THE RECEPTACLE AND CORD IS NECESSARY.
THE CORD MUST BE ROUTINELY CHECKED FOR CUTS, BREAKS, OR ANY SEVERE ABRASIONS, AND IF ANY
ARE FOUND, THE CORD MUST BE REPLACED BEFORE RESUMING USE OF THE UNIT.
ELECTRICAL POWER SUPPLY MUST BE “OFF” BEFORE AND DURING INSTALLATION AND MAINTENANCE.
INSTALLATION AND MAINTENANCE PROCEDURE MUST BE PERFORMED BY A TRAINED AND COMPETENT
ELECTRICIAN.
IF ANY PARTS OF THE RECEPTACLE OR PLUG APPEAR TO BE MISSING, BROKEN, OR SHOW SIGNS OR
DAMAGE, DISCONTINUE USE IMMEDIATELY. REPLACE WITH THE PROPER REPLACEMENT PART(S) BEFORE
CONTINUING SERVICE.

EPLRL-50-16.4-HR-SWB
Larson Electronics, LLC Phone: [phone] Fax: [phone] www.larsonelectronics.com 2of 5
The Larson Electronics EPLRL-50-16.4-HR-SWB is an Explosion Proof Reel for use in Class I, II and III rated combustible
locations. Equipped with 50' of 16/4 SOOW cable, the unit features a swivel base with ball bearings which facilitates
rotation and pivoting. This reel is ideal for petroleum facilities, waste water treatment plants, grain storage and handling
silos, paint booths, underground mines, chemical plants, and much more.
WIRING
Standard pigtail(flying leads) wiring
We strongly encourage a licensed electrician install this product,in all locations especially in outdoor areas
where weatherproofing may be required. Universal voltage driver permits operation at 600V.
Warning: Check product label for correct input voltage!
Attach supply line wires to the appropriate light fixture wires as shown
in thediagram 
Secure each pair of wires according to the diagram. Utilize a junction box or
similar device and take precautionary steps for weatherproofing all
connections if installed in a location where water may come in contact with the
unit. Ensure the unit is properly grounded and that wiring is done according to
all local and national electrical/building codes.
INSTALLATION
Stretch Applications
The cable is suspended without any intermediate support. Stretch reels generally require a
line pull equal to two times the weight of the cable, which allows approximately 10% sag
at full extension. On long applications where sag cannot be tolerated, it is sometimes desirable
to put supports at intervals of 5 to 10 feet.
Drag Applications
The reel is mounted on a stationary object and is required to drag the cable over the surface to
the reel. The cable is supported by the ground or some type of cable tray.
Lift Applications
The cable is lifted vertically in lift applications. The reel is normally designed to handle only the total
weight of the cable. Some lift applications may require a ball stop and ratchet to control the length
of cable to be retracted.
Retrieve Applications
The reel is mounted on the moving object and winds up or pays out the cable as the machine
approaches or moves away from the fixed end. Retrieve applications can be elevated up to 4 feet
from the cable support surface.

EPLRL-50-16.4-HR-SWB
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MOUNTING
Standard mounting
1. The reel may be mounted by bolting the base to any flat surface which is structurally sound enough to support it and
the forces of winding and unwinding the cable.
2. The spool drum must rotate on a level horizontal axis.
3. Position the guide arm so that cable payout is perpendicular to the face of cable roller guide. The total cable deflection
should not exceed 15° to either side of the centerline of the spool.
4. If deflection is constant to either side of the reel and operation is impaired, re-mount the reel.
5. If the angle of deflection exceeds a Pivot Base should be used, otherwise excessive cable wear and unreliable
operation will result.
6. A safety chain is recommended for all overhead installations. Attach the safety chain using the 0.39 hole provided in
the base.
Pivot Base mounting
1. All EXPCRL cable reels can be furnished with a spark proof pivot base to allow the reel to rotate and keep the
extended cable perpendicular to the application.
2. The pivot base has the ability to rotate up to 340°. This pivot base is not suitable for applications requiring continuous
rotation.
3. A pivot base is required carousel or loop-track applications.
4. When a pivot base is used, the reel must be mounted horizontally (ceiling or floor mounted).
5. The roller guide should be mounted so the cable will travel perpendicular to the axis of rotation. This will guard against
the cable twisting and ensure effective swivel action from the pivot base.
6. Selection of mounting holes should be such that the spool center is in line with the center point of the pivot base.
Cable Deflection with Roller
Reel with Pivot Base
Roller guide
1. All EXPCRL units are equipped with a roller guide arm. The function of the guide is to center the cable on the spool
and to help the reel cable more evenly.
2. The cable should not pile against either end of the spool during winding as this will tend to inhibit level winding of the
cable.
3. The guide should be secured at the best of twelve possible positions so that a minimum change of direction occurs at
the guide; otherwise, cable life will be reduced.
4. The guide is shipped installed on the reel. The guide must be aligned per application and secured prior to making any
electrical connections.
5. Mount the roller guide to the reel over the entrance coupling on the frame. Secure using the provided 3/8-16 hex head
cap screw, including the split lock washer. Tighten this to 15 ft.-lbs.

EPLRL-50-16.4-HR-SWB
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Ratchet Lock
•The ratchet lock can be activated or deactivated, depending upon the application.
Operation with Ratchet
•The ratchet on the EXPCRL is spring loaded. It is designed to function in all acceptable
mounting configurations.
Operation without Ratchet
•Deactivate the ratchet by pivoting the lock-out bar to the lower position. This will remove the ratchet
pawl from the path of the ratchet plate. Locate the dimple on the lock out bar in the hole provided.
Roller Guide Locations
WARNING: Do not activate the ratchet abruptly. Sudden activation may cause excessive shock loads to the ratchet pawl which may
cause lock-up and/or breakage.
Cable Installation
Cable is factory installed and sealed. Consult factory for changes.
Spring Tension Adjustment
WARNING: Do not allow cable to retract without restraining the retraction speed. Walk the cable back to the reel during the spring
tension adjusting process. Always maintain two full cable wraps on drum at maximum cable extension, size cable accordingly.
1. The EXPCRL reels come with pre-tension from the factory. Some adjustments may be required to meet specific application
requirements.
2. To assure that the cable will retract properly and operate under the correct tension for intended application; the reel should be
tested. Securely mount reel before testing with cable installed on drum and end of spool cable not connected, proceed with the
next steps.
3. Pull the cable out to the intended travel distance and allow it to rewind. This procedure should be repeated five (5) to ten (10)
times in order to set the spring. Walk the cable back to the reel during the spring tension adjusting process.
Rotate Spool while holding Cable to Test the Spring Tension
4. With all the cable wound on the reel, grasp the end of the cable and rotate the drum and cable together in the direction of pay
out in order to pre-tension the spring. The number of pre-tension turns is determined by cable size and footage. Usually, four to
sixteen turns is sufficient, but additional turns may be used if testing indicates that the cable will not fully retract as desired with
just four turns.

EPLRL-50-16.4-HR-SWB
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Adding Spring Tension
5. Feed the end of the cable through the cable guide and pull the cable out the required length.
6. Repeat steps 3 to 5, if necessary, to add tension. To decrease tension, rotate drum and cable counter-clockwise.
Power Connections
1. Provide power source with over-current protection to prevent overheating of the reel and cable.
2. Reels are supplied with 6’ feeder cords. Those cords are the same cable as is supplied on the spool. They are factory sealed
with explosion proof potting compound and supplied with a watertight strain relief. If a conduit connection is required, the strain
relief must be removed and conduit connections made.
OPERATION
1. Do not exceed the voltage or amperage for the cable. Overheating, fire, damage to equipment or personal injury could result.
2. Do not allow cable to retract without restraining the retraction speed.
3. Operate the reel within the cable size and length and spring tensioning limits for which it was intended.
4. Keep two wraps of cable on the reel at maximum extension to avoid excessive tension on the cable and to prevent pullout of
cable from entrance watertight.
MAINTENANCE
There are no serviceable parts inside the fixture. However, it is good practice to routinely clean and check the
fixture for proper function.
•Disconnect power running to the unit and be sure the fixture iscool to the touch.
•Use a non-abrasive cleaning solution to clean the fixture.
USE AND CARE
Unauthorized modification may impair the function and/or safety of this device and could affect the life of the equipment.
Always check for damaged or worn out parts before using the device. Store it in a secure place out of the reach of
children when not in use.Inspect for good working condition prior to storage and before re-use.
REPLACEMENT PARTS
The EPLRL-50-16.4-HR-SWB is designed to provide years of reliable performance. Should the need for replacement
parts arise, please contact Larson Electronics.
THESE INSTRUCTIONS MAY NOT COVER ALL DETAILS OR VARIATIONS OF THIS PRODUCT FOR YOUR EQUIPMENT OR INSTALLATION REQUIREMENTS.
SHOULD FURTHER INFORMATION NOT COVERED BY THESE INSTRUCTIONS BE REQUIRED, PLEASE CONTACT LARSON ELECTRONICS BY EMAIL AT
[e-mail] OR BY PHONE AT 1-800-369-6671 FOR FURTHER ASSISTANCE.
PLEASE VISIT LARSONELECTRONICS.COM FOR WARRANTY AND RETURN INFORMATION.