CITEL M50-277Y-B Surge Protector Square D SDSA4040 Surge Protector Intended Application System System Voltage277/480Vac Number of Phases3-Phase Conductors4 Wire + Ground ConfigurationWYE PRODUCT COMPARISON This page collects publicly available data from ul.com and assembles a side by side reference table for convenient product comparisons. Manufacturer Square D UL File #E326289E3314042 Model M50-277Y-B SDSA4040 Product Image UL.com Ratings UL CARD UL CARD UL APPROVALLISTEDLISTED UL MARK SPD Type11 Volt (V)277/480277/480 AC/DC DC PVACAC Phase3Y3Y Amps (A)n/an/a Ambient Min (C)-35-35 Ambient Max (C)8080 Mode L-L L-N L-G N-GL-L L-N - - VPR (Vpk) L-L L-N L-G N-G2500 1200 1500 12002500 1200 - - MCOV L-L L-N L-G N-G560 320320 280840 420 - - In (kA)2010 SCCR (kA)150200 Additional Data Sheet Ratings Surge Current Rating (kA)5040 Protection CircuitHybrid TMOV+GSGTMOV Leakage CurrentNoYes TOV OptimizedYesNo DiagnosticsLED Audible AlarmLED Environmental RatingNEMA 4X NEMA 6 (submersible)NEMA 4X # of Wires54 Modes of ProtectionCommon Mode Differential Mode- Differential Mode Notes - 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