Larson Electronics EPS-PB10-2XC-M2-YR User manual

EPS-PB10-2XC-M2-YR
Larson Electronics, LLC Phone: Fax: [phone] www.larsonelectronics.com
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Explosion Proof Mushroom Push Button Switch
(2) Contact Blocks - Class I and II, Divisions 1 and 2 - Yellow Visibility Plate
Instruction Manual
Thank you for your purchase of the Larson Electronics EPS-PB10-2XC-M2-YR.
WARNING
TO AVOID THE RISK OF FIRE, EXPLOSION OR ELECTRIC SHOCK,THIS PRODUCT SHOULD BE INSTALLED,
INSPECTED AND MAINTAINED BY AQUALIFIED ELECTRICIAN ONLY,IN ACCORDANCE WITH ALL
APPLICABLE ELECTRICAL CODES.
TO AVOID ELECTRIC 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.
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The EPS-PB10-2XC-M2-YR from Larson Electronics is an Explosion Proof Single Push Button Switch with Visibility Plate
that is designed for use in hazardous work areas, such as chemical plants, oil refineries, and settings where combustible
gases or dust may be present. This 10-amp device features the following explosion proof ratings: Class I Division 1 and 2;
and Class II Division 1 and 2. In industrial and commercial settings, the front-operated push button switch may be used to
support basic features of machines lacking electrical circuits for control. When ordering this unit, buyers may choose from
1/2" and 3/4", dead end and feed thru options. The EPS-PB10-2XC-M2-YR is equipped with a visibility plate.
CAUTION:
A nameplate is furnished on the cover reading "DISCONNECT THIS ENCLOSURE FROM
SUPPLYING CIRCUIT BEFORE OPENING". Be sure the flame paths (cover to box mating
surfaces and threaded openings) do not become damaged or out of tolerance (refer to back of
sheet for tolerances). Do not install in a corrosive area which will attack the" copper free"
aluminum alloy or stainless steel parts unless the castings and parts have been protected
against the specific corrosive environment.
DESCRIPTION:
The EPS-PB10-2XC series maintained contact, mushroom head, push/pull operator assemblies
are for use in hazardous location Class I, Groups B, C & D; Class II, Groups E, F & G;
Class III areas when used with deep style boxes. These units are heavy-duty, 600 V AC rated.
OPERATION:
The mechanical action of these devices is maintained push/pull operation. The electrical action is dependent upon the
contact block used.

EPS-PB10-2XC-M2-YR
Larson Electronics, LLC Phone: Fax: [phone] www.larsonelectronics.com
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MAINTENANCE:
For detail ofparts, refer to graphic below.To prevent binding,
the knob and collar area should be cleaned periodically.
INSTALLATION
We recommend only a licensed electrician install this product. All applicable local and
national electrical and building code should be followed when installing.
EPS-PB10-2XC-M2-YR devices are for surface mounting in hazardous atmospheres, as defined in
the NEC Article 500. They contain an electrical device, and must have conduit sealing fittings (per
NEC article 50 1-5)on all conduit openings. Use Larson Electronics "EYM" series (or equivalent).
Mount the box using the cast mounting lugs provided. Install sealing fittings as required in Class I &
IT areas.
Thread conduit on to seals (NOTE: FOR CLASS I AREAS, CONDUIT MUST ENGAGE A
MINIMUM OF 5 FULL THREADS). The conduit threads should be lubricated with a non-electrical
insulating lubricant, or pipe joint compound which will not promote corrosion or chemically attack
aluminum.
After conduit system has been properly installed, pull the supply wires and make wiring
connections as required. The electrical circuits and ground continuity should be checked with an
instrument approved for the area.
A FLAME PATH IS MACHINED ON BOX & COVER SUCH THAT A 0.0015" FEELER GAUGE WILL
NOT ENTER THE JOINT MORE THAN 1/8" WHEN FULLY ASSEMBLED AND BOLTED. CARE
MUST BE TAKEN THAT MACHINED SURFACES AND THREADED AREAS ARE NOT
DAMAGED.
REMEMBER TO SAVE ONE OF THESE SHEETS FOR MAINTENANCE PERSONNEL.
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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. Storeit in a secure place out of the reach of children
when not in use.Inspect for good working condition prior tostorage and before re-use.
REPLACEMENT PARTS
The EPS-PB10-2XC-M2-YR 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
SAL[email protected] OR BY PHONE AT 1-877-348-9680 FOR FURTHER ASSISTANCE.
PLEASE VISIT LARSONELECTRONICS.COM FOR WARRANTY AND RETURN INFORMATION.