Weidmueller VPU AC II 3+1 350/50 Comparison CITEL DS74US-277Y/G Surge Protective Device (SPD) CITEL DS74US-277Y/GSurge ProtectorVPU AC II 3+1 350/50Surge Protector Intended Application System System Voltage480/277Vac Number of Phases3 Conductors4W+G ConfigurationWYE PRODUCT COMPARISON TABLE This page collects publicly available data from ul.com and assembles a side by side reference table for a convenient product cross reference. Brand ManufacturerCITEL AMERICA INCWeidmueller UL File #E326289E354261 ModelDS74US-277Y/GVPU AC II 3+1 350/50 Product Image UL.com Ratings UL CARD UL CARD UL MARK SPD TypeUL1449 5th Ed. Type 1UL1449 5th Ed. Type 1CA(4-1) Volt (V)480/277480/277 AC/DC DC PVACAC Phase33 Amps (A)n/an/a Ambient Min (C)-40-40 Ambient Max (C)+85+80 ModeWYEWYE VPR (Vpk) L-L L-N L-G N-G2500 1500 1500 12003000 1500 3000 1000 MCOV L-L L-N L-G N-G840420420320700350350350 In (kA)2020 SCCR (kA)200200 Additional Data Sheet Ratings Surge Current Rating (kA) per phase7550 Protection CircuitMulti-MOV+GSG- Leakage CurrentYes- TOV OptimizedNo- DiagnosticsVisual Indicator and Remote ContactRemote Indicator Environmental RatingNEMA 2 (IP20)IP20 # of Wires55 Modes of ProtectionCommon Mode Differential ModeCommon Mode Differential Mode Warranty10-years5-years Notes none Determining the acceptability of an SPD for your UL equipment (for UL 508A Control Panels 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. UL data is publicly available with a free account at UL.com. The data has been reviewed by our engineering department. From time to time, the applicants UL file (including CITEL's) may become changed or updated at UL.com due to new testing or corrections to a report. At the time of this comparison you will find this information to be accurate to the UL web site. If you find any information requires an update, please bring to our attention and it will be updated immediately. 10108 USA Today Way Miramar, FL 33025 USAContact us to develop a surge mitigation solution for your application www.citel.usWhere to purchase Citel SPD's