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SMA S136.0-US Inverter with Hyundai HIS-S290RG Modules 6.96 kW DC Photovoltaic System Electrical Diagram with (2) Series Strings of 12 Modules OO7 13 O Optional Supply Side Connection To inverter NEC705.12A S290 (12)Hyundai HiS-S290RG RG — #12 290 Watt Modules in series Lt N M fib bare copper GEC ('A 16HNlTHWN-2 Li lity meter T 31C PVC conduit zvoA $290 so a rused RG #12 dsconnect with - 35A fuses existing Main Distribution Hyundai HiSS290RG electrode Panel UUUIJSMA SB 6.0-US Inverter Module Specifications Max.Input DC Voltage: 600 VDC 4)#10 AWG PV Wire 3-R,3-13 (1)#6 AWG Bare Copper Pmax:290 Wp Max ISC per string: 18 A 200A Panelboard with Voc: 38.8 V MPPT Range: 100-550 VDC 200A Main breaker Vmpp:32.0 V Max Output Voltage:240 VAC O (4)#10 AWG THHN/THWN-2 Isc: 9.7 AB 3 2- ,2-11 Max Output current:25 A(AC) 20OA-2 (1)#8 AWG THHN/THWN-2 Impp: 9.1 A O AC Nominal Power:6000 Watts C.Voltage:-0.30%/C q 1-G OOO 3/4"EMT,FMC(inside structure Notes: All work to meet or exceed NEC 2011 10 LFNC,PVC(outside structure) 1 Junction box to be located within the array boundary. Junction box must be minimum Nema 311 UL listed 690.31E enclosure.Free air conductors must be installed in raceway if readily accessible as per 690.31 A 11 Nema 3R Y Y P ( )• 35A/2 Junction 2 The minimum volume of the Nema 3R enclosure for the transition of PV wire to THWN-2 wire shall be i Box 42 cubic inches. Heyco 5 wire Masthead gland seals or similar connector are required as strain relief i for PV wire into Nema 3R junction box at array. i SMA Sunny Boy 6.0-US 3 Interconnection with 35 Amp 2 pole OCPD via 2011 NEC 705.12(D)(2)Load Side Connection. The 35 A _ Transformerless Inverter backfed breaker must be located at the opposite end of the bus from the 200 A main supply breaker ! with integrated DC 4 The required PV Backfed breaker plus the main breaker ratio must be less than or equal to 120%of existing q P g grounding i Ac disconnect the Main service bus rating. 705.12(D)(2) electrode 5 Optional Supply Side connection via 705.12A using parallel line taps in a NEMA 3R box(as required) (4)#8 AWG THHN/THWN- i using NSI IPCS4002, Ilsco IPC-KUP-L or NSI Tork IPLD 3/0-3 Multi-Tap Connector or equivalent. 1-B,1-R,1-W,1-G i s PV service disconnectingmeans for"optional"supply side connection must have neutral/EGC bond i 3/4"EMT,FMC,LFNC, P PP y i within and must be listed as"suitable for use as service equipment." 230.66 or PVC 7 The fuses in the disconnect for the"supply side"option must be rated to handle the maximum short- . —....... circuit current available at the supply terminals.110.9,110.10 Over-current protection for the supply side (4)#8 AWG THHNITHWN-2 connected conductors shall be located within 10 feet of the connection to the service. 705.31 Grounded conductor shall be routed with ungrounded conductors to PV Service disconnecting means as 1-B,1-R,1-W,1-G 8 per 250.24(C)if"Supply Side"option is used. 3/4"EMT,FMC,LFNC,or PV 9 For"Supply Side option" Continuous or irreversibly spliced Grounding Electrode Conductor installed per 250.24(D). Grounding Electrode Conductor shall be specified as per 250.64 and sized per 250.66 10 The following label is required on meter can and main panelboard"Services fed from dual power sources 6OA 240V AC Disconnect with label: 13 Utility and Photovoltaic system" On-site Utility Generation 11 rrpV input Do not relocate this OCPD"label required adjacent to backfed breaker. 705.12(d)(7) Disconnect Switch(IF REQUIRED BY UTILITY) DC Disconnect Label Requirements 12 Bonding of module to rail and module to module accomplished through WEEB washers or self grounding Vmpp 384 VDC mid-clamps. PV AC Disconnect Label Requirements Vmax 500.5 VDC 13 "Warning:DC conductors of this system are ungrounded and may be energized"required on the Operating Current:25 A Impp 18.2 A DC Disconnect 690.35F Operating Voltage:240 VAC Imax 24.25 A 14."Warning:Photovoltaic Power Source"label required on conduit per 690.31 (E)(3)(4) 15. Total voltage drop%for all circuits based on listed conductors is 1.46%