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Rapid shutdown is built-in <br />What’s new in NEC 2014? <br />NEC 2014, Section 690.12 applies <br />to PV conductors over 10 feet from <br />the PV array and requires that the <br />conductors power down to 30 volts <br />and 240 volt-amperes within 10 <br />seconds of rapid shutdown initiation. <br />Enphase® Energy // Rapid Shutdown <br />® <br />To learn more, visit enphase.com <br />The 2014 edition of the National Electrical Code (NEC 2014) added <br />new rapid shutdown requirements for PV systems installed on buildings. <br />Enphase Microinverters fully meet rapid shutdown requirements in the <br />new code without the need to install any additional electrical equipment. <br />Enphase comes standard with rapid shutdown capability <br />Residential Microinverter Commercial Microinverter <br />All Enphase microin- <br />verters, even those that <br />were previously installed, <br />inherently meet rapid <br />shutdown requirements, <br />no additional equipment <br />or workarounds needed <br />Enphase microinverters <br />can safely shut down <br />automatically, leaving <br />only low-voltage DC <br />electricity isolated to <br />the PV module <br />String inverters require work arounds for rapid shutdown <br />Residential String Inverter Commercial String Inverter <br />Work around. <br />Specialized Rapid Shutdown <br />electrical box installed on the <br />roof within 10 feet of array. <br />Work around. <br />String inverter installed <br />on roof, a hostile <br />environment that string <br />inverters are not built <br />to live in.Work around. <br />:O\[VќZ^ P[JO[OH[PZ <br />LHZPS`HJJLZZPISL[VÄYZ[ <br />responders on the ground. <br />Work around. <br />Extra conduit in installation. <br />SM SOLAR <br />MOUNT INSTALLATION GUIDE PAGE <br />Wrench or Socket Size Recommended <br />Torque (ft-lbs) <br />Mid Clamp u 1/2”11 <br />MLPE Mount v 1/2”10 <br />End Clamp t 1/2”3 <br />L-Foot to Rail 1/2”30 <br />Rail Splice p 5/16”10 <br />Anti-Seize <br />STANDARD SYSTEM COMPONENTS A <br />n o <br />p <br />q <br />r <br />u v <br />t <br />SM LIGHT RAIL <br />SM STANDARD RAIL <br />t <br />n <br />t <br />s <br />nRAIL: Supports PV modules. Use at least two per <br />row of modules. Aluminum extrusion, available in <br />mill, clear anodized, or dark anodized. <br />oRAIL SPLICE: Non structural splice joins, aligns, <br />and electrically bonds rail sections into single <br />length of rail. Forms a rigid splice joint, 4 inches <br />long, predrilled (see page I). Anodized aluminum <br />extrusion available in clear or dark. <br />pSELF-DRILLING SCREW: (No. 12 x ¾”) – Use 4 <br />per rigid splice. Stainless steel. Supplied with <br />splice. In combination with rigid splice, provides rail <br />to rail bond. <br />qL-FOOT:8VHWRVHFXUHUDLOVWKURXJKURRˉQJ <br />material to building structure. Refer to loading <br />tables or U-Builder for spacing. <br />r L-FOOT T- BOLT: (3/8” x ¾" or 1”) – Use one per <br />L-foot to secure rail to L-foot. Stainless steel. <br />6XSSOLHGZLWK/IRRWLQFRPELQDWLRQZLWKˊDQJHQXW <br />provides electrical bond between L-foot and rail. <br />sSERRATED FLANGE NUT : Use one per L-foot <br />to secure and bond rail to Lfoot. Stainless steel. <br />Supplied with L-foot. <br />tMODULE ENDCLAMP: Pre-assembled universal <br />clamp that secures module to rail at module <br />ˊDQJHE\WLJKWHQLQJKH[KHDGEROW <br />uMODULE MIDCLAMP: Pre-assembled clamp <br />provides module to module and module to rail <br />bond. Aluminum clamp with stainless steel <br />bonding pins and T-bolt. Available in clear or <br />GDUNˉQLVK <br />vMICROINVERTER MOUNTING BOLT: <br />Preassembled bolt, nut, and captive star washer <br />attaches and bonds microinverter to rail. <br />NOTE - POSITION INDICATOR: T-bolts have a slot <br />in the hardware end corresponding to the direction <br />of the T-Head. <br />Wrenches and Torque <br />s <br />Stainless steel hardware can seize up, a process called <br />JDOOLQJ7RVLJQLˉFDQWO\UHGXFHLWVOLNHOLKRRG <br />1. Apply minimal lubricant to bolts only where <br />indicated in installation process, preferably Anti-Seize <br />commonly found at auto parts stores (Anti-seize has <br />been factory applied to mid clamp bolts) <br />2. Shade hardware prior to installation, and <br />3. Avoid spinning stainless nuts onto bolts at high speed. <br />sv <br />213 S Kenton Dr <br />10/04/22