Surge Protection for Telescopic Seating Telescopic Seating OVERVIEW Today's increased reliance on very sensitive electronics makes surge protection an important topic for Telescopic Seating listed to UL508A. The Insurance Institute for Business & Home Safety study found that $26 billion dollars was lost due to non-lightning power surges. In addition, there are about 25 million lightning strikes in the US each year that cause between $650M to $1B in losses according to the Insurance Information Institute, State Farm©. Telescopic Seating Selecting SPD for Telescopic Seating NEC/NFPA 70 require that Surge Protective Devices (SPDs) shall be UL1449 Listed. This means selecting a surge protector is easier than it has ever been. There are only a few choices available for SPDs that are UL Listed for any of the most commonly used surge standards including UL1449 5th Edition, UL497B, and UL497E. Article 409.70Surge Protection Requirement"Safety circuits for personnel protection that are subject to damage from surge events shall have surge protection installed within or immediately adjacent to the control panel.” Recommended SPD for Industrial Machines LocationEquipmentSystemSurge Protector Model#Link Service EntranceMain Service Panelboard277/480Vac MDS750E-277Y Branch PanelEquipment Panelboard480Vac M50-480D-A Local EquipmentControl Panel480Vac Power Input DS74US-480D Power Supply120-240Vac Power Input DS72US-230S/G 24Vdc Power Output DS220S-24DC Control UnitEthernet Cat 6A MJ8-C6A 4-20mA DLA-24D3 Wireless P8AX09-6G-N/FF Determining the acceptability of an SPD for Telescopic Seating and All Other UL Listed Equipment The UL inspector will first consider the SPD type when determining it’s acceptability for a given application or piece of equipment. This will include UL 508A as well as all other UL Listed equipment. The first level compliance is based on the UL Approval (LISTED or RECOGNIZED) of the SPD or UL SPD Type and it’s Suitable Ratings. This means that it has to meet all safety, performance, environmental and electrical system ratings of the application. If any of these criteria are not fully met, it will require a Procedure Description, a File Update and/or Additional Testing. These actions will require additional costs that may be substantial. For this reason, it is in the interest of the specifier to use UL LISTED SPD’s to eliminate any uncertainty or to make sure the UL RECOGNIZED SPD is selected at the time of UL submittal of the equipment. Approval Considerations Table based on UL SPD Type UL MarkUL1449 SPD TypeSuitable RatingsProcedureDescribedFile Update or Additional TestingNotes 1 2YesNoNoThe only requirement is that the SPD must match electrical and environmental ratings of the UL 508A Control Panel. A UL field inspection of the control panel with the SPD installed is required as a part of a standard follow-up service visit. 1CA 2CA 4CA 5YesYesYesYes – All UL recognized SPD’s require a UL engineering evaluation of the SPD’s existing UL1449 E–file. This will result, at a minimum, in a cost to update the UL file and may also require testing that would result in additional costs. Contact us to develop a surge mitigation solution for your application Where to purchase Citel SPD's