Larson Electronics EPL-SW Series Instruction Manual

Larson Electronics EPL-SW Series Instruction Manual Manual pdf 1 page image

EPL-SW SeriesExplosion Proof Tumbler SwitchClass I, II, III - Copper-free Aluminum - NEMAInstruction ManualThank you for your purchase of the Larson Electronics EPL-SW Series Explosion Proof switch.WARNINGTO AVOID THE RISK OF FIRE, EXPLOSION OR ELECTRIC SHOCK, THIS PRODUCT SHOULD BE INSTALLED,INSPECTED AND MAINTAINED BY A QUALIFIED ELECTRICIAN ONLY, IN ACCORDANCE WITH ALLAPPLICABLE 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-GROUNDINGCONDUCTOR.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 HAZARDOUSATMOSPHERE.• DO NOT OPERATE IN AMBIENT TEMPERATURES ABOVE THOSE INDICATED ON THE PRODUCTNAMEPLATE.• DO NOT OPERATE IF THE LENS, CORD, SEALS, HOUSING, RECEPTACLES, ETC. IS CRACKED ORDAMAGED. IF SO, DISCONTINUE USE AND CONTACT MANUFACTURER FOR REPLACEMENT PARTS.• ALL FASTENERS SHOULD BE PROPERLY SEATED.• WARNING: To avoid risk of explosion, all flat machined surfaces must be kept clean and free from scratches,dents, debris, paint, and corrosion. The flat machined surfaces are explosion proof joints, and must be clean andundamaged on both the enclosure and cover.The Larson Electronics EPL-SW Explosion Proof Tumbler Switch provides a safe and secure method for operators tointerrupt power before connecting and disconnecting electrical equipment in hazardous locations. This 20-amp device iscompatible with single-phase 120-277V AC and features lever style switch(es). Available in single and double gang boxconfiguration.Larson Electronics, LLC Phone: (877) 348-9680 Fax: (903) 498-3364 www.larsonelectronics.com 1 of 2Mounting and InstallationMounting of the EPL-SW is achieved via mounting tabs on the back of theenclosure. Mount to a clean, flat surface with customer provided mountinghardware. Hardware is not included with this switch, but is available from LarsonElectronics. Contact Larson Electronics if you wish to order.1. The surfaces of the flat ground joint are precision machined to insure anexplosion proof joint and must be protected from scratches or damage duringinstallation.2. When switch is mounted in the enclosure, it must be mounted to agreewith cover indication of operation. That is, when the cover indicates ON, the switchmust be in the ON condition.3. Before the cover is installed, the flat ground joint surface must bethoroughly wiped clean of any dirt, grit, or other foreign substances and a light thincoating of lubricant placed on the joint to prevent possible corrosion.The joint between the box and the cover has been made accurately to .0015” toprevent the passage of this accuracy is destroyed.4. ALL cover screws must be installed with at least five full threads engagedand must be securely tightened. All cover openings must be closed with a suitablecover.5. Gaskets must not be added to these devices. Only gaskets designed forand permanently installed in these devices may be used.6. In accordance with the hazardous location information specifying Classand Group listing marked on the device, sealing fittings must be added that willcomply with requirements in the latest issue of the Canadian Electrical Code orNational Electrical Code and any special requirements that are stated in theinstruction sheet with the enclosure.

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