Larson Electronics EPS-PB10-MS-SPDT Bedienungsanleitung

EPS-PB10-MS-SPDT

Larson Electronics, LLC Phone: (800) 369-6671 Fax: (903) 498-3364 www.larsonelectronics.com 1of 2

10A Explosion Proof Push Button Momentary Switch

C1D1/C2D1 - 1P - Double Throw - NEMA

Instruction Manual

Thank you for your purchase of the Larson Electronics EPS-PB10-MS-SPDT.

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.

The Larson Electronics EPS-PB10-MS-SPDT Explosion Proof Push Button Momentary Switch is ideal for controlling

motors and devices in hazardous locations. This 1-pole unit is equipped with a double throw configuration. Constructed of

malleable aluminum, the Class I, Division 1 & 2 and Class II, Division 1 & 2 rated switch features various hub size, contact

configuration and color (button) options.

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 120V - 277V AC.

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.

Operators connect to the switch via an internal terminal strip. This unit is offered in dead end or feed thru configurations,

with 1/2" or 3/4" NPT hubs.

EPS-PB10-MS-SPDT

Larson Electronics, LLC Phone: (800) 369-6671 Fax: (903) 498-3364 www.larsonelectronics.com 2of 2

MOUNTING

The EPS-PB10-MS-SPDT is compatible with surface mounting applications.

Mount the back box by means of mounting lugs. Install conduit nipple and sealing fittings, to be installed on

each conduit entrance or exit to the enclosure back box in Class I and Class II areas. Thread conduit into

sealing fitting (Note: For Class I areas, the conduit should engage [5] full threads.)

The conduit threads should be lubricated with a non-electrical insulating lubricant or pipe joint compound that

will not promote corrosion or chemically attack aluminum.

After conduit system has been properly installed, pull the wires and make electrical connections as required.

The electrical circuits and ground continuity should be checked with an instrument approved for the area.

Notice: Connect only copper wire to this device.

All conduits entering or leaving the enclosure must be sealed within 18” of the enclosure with listed sealing

fittings.

Caution must be taken during installation to be sure that the ground flange flame joints of the cover and box

are not scratched, nicked, or damaged. Before assembly of the cover to the box, the mating ground surfaces

of both the box and cover should be wiped clean to assure that the ground flame joint will be free of all

foreign particles such as lint, dust or dirt.

After tightly bolting the cover assembly/assemblies to the enclosure, all box to cover flame joints should be

checked with a 0.0015” thick feeler gauge such that the gauge will not enter the flame path more than 1/8” at

any point.

INSTALLATION

MAINTENANCE

There are no serviceable parts inside the fixture. However, itis good practice to routinely clean and check the

fixture for proper function.

All moving shafts should be lubricated occasionally to prevent binding. Only use a lubricant which is suitable

for use with aluminum or stainless steel. If devices are to be installed in corrosive areas which will attack

aluminum alloys containing less than 0.4% copper (boxes and covers) and 303 stainless steel (mostly

shafts), the device should be suitably protected from the corrosive material.

CAUTION: To prevent ignition of hazardous atmospheres, disconnect from the supply circuits before opening

the enclosure; keep tightly closed while circuits are energized.

•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 EPS-PB10-MS-SPDT 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

SALES@LARSONELECTRONICS.COM OR BY PHONE AT 1-800-369-6671 FOR FURTHER ASSISTANCE.

PLEASE VISIT LARSONELECTRONICS.COM FOR WARRANTY AND RETURN INFORMATION.

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