SMA E-Panel installation manual Dual Master shown Model MNE250SMA The MidNite Solar SMA E-Panel is designed for single & multiple inverter installations. Use this installation manual to aid in installation. The installation of electrical systems such as this fall under the guidelines of the NEC in the USA. Canadian electrical codes have jurisdiction in Canada. These instructions are not intended to be used in lieu of these local and federal codes, but rather are used as specific to this product.
SMA E-Panel installation manual This Manual contains information for MidNite Solar SMA E-Panel Model Numbers: Masters: MNE250SMA-AC SINGLE MNE250SMA-OG SINGLE MNE250SMA-OG/AC DM MNE250SMA-QUAD MASTER MNE250SMA-3PH MASTER Single Single – Off Grid Master – Dual Off Grid Master – Quad System AC Coupled / Off Grid Master - 3 Phase Slaves: MNE250SMA-Slave Slave (right hand unit) for dual, 3PH and Quads Backplates – Autoformer MNESMA tall BP MNESMA short BP MNX-240 Back plate for AC coupled Master holds inv
SMA E-Panel installation manual IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS - These instructions contain important safety and operating instructions for the MidNite SMA E-Panel. If you do not fully understand any of the concepts, terminology, or hazards outlined in these instructions, please refer installation to a qualified dealer, electrician or installer. These instructions are not meant to be a complete explanation of a renewable energy system.
SMA E-Panel installation manual INSTRUCTIONS DE SECURITÉ IMPORTANTES CONSERVER CES INSTRUCTIONS Ces instructions contiennent des informations importantes pour utiliser le Midnite Solar SMA MNX240 Autotransformer en toute sécurité. 1. Avant l’utilisez cet appareil lis et comprends toutes les instructions et avertissements. 2. Si vous ne comprenez pas l’une des concepts ou des instructions contenu dans cette manuel consulter un agent spécialisé. 3.
SMA E-Panel installation manual Table of Contents Model Number Descriptions................................................................................................................... 2 Warning Symbols .................................................................................................................................... 2 Warnings ................................................................................................................................................
SMA E-Panel installation manual All E-Panels: 4 1 9 2 1 9-565-1 9-314-1 6-032-1 6-010-2 10-234-1 1" Grommets 2" Grommet 1/4-20 Bolts 4 to mount the e-panel, 5 extra to mount the inverter 2 M6 Screws and other hardware for mounting inverter to backplate Manual Dual System: 8 2 18 4 2 4 4 4 4 1 9-565-1 1" Grommets 9-314-1 2" Grommet 6-032-1 1/4-20 Bolts 4 to mount the e-panel, 5 extra to mount the inverter 6-010-2 2 M6 Screws and other hardware for mounting inverter to backplate 9-489-1 10.
SMA E-Panel installation manual DC Negative DC Disconnect Breaker – Relay trippable 500Amp/50mv Shunt Dinrail for additional breakers AC or DC Bypass Breakers Battery Plus Bus Charge Controller breakers* Charge Controller breakers* PV Positive and negative input connections MNSMARB Relay board AC Neutral busbar AC Output under charge controller breakers Ground Busbar AC Input *If not used for the Classic these breaker locations are available for extra load breakers.
SMA E-Panel installation manual Mounting the SMA E-Panel to the wall: This section describes the general instructions for installing components to the wall or other mounting surface. When you have completed this section then refer to the appropriate section for your model for specific instructions on wiring and wiring diagrams. Pre-Wired systems start on Page 13. Note: The SMA E-Panel system should only be installed with the backplate.
SMA E-Panel installation manual Mounting the SMA E-Panel to the wall cont.: Install the inverter mounting bracket before mounting the backplate to the wall. Use ¼20 bolts and flat washers. Pressed in nuts are provided on the backplate. Ensure that the inverter bracket is centered and is resting on the mounting screws (down on the screws and not slid up). Mounting on back of inverter The inverter rests on the tab of the inverter mounting bracket.
SMA E-Panel installation manual Mounting the SMA E-Panel to the wall cont.: These two mounting locations are not used Inverter lower mounting screw locations. The inverter is spaced away from the back plate at the four lower mounting screws.
SMA E-Panel installation manual Mounting the SMA E-Panel to the wall cont.: Slider Remove the deadfront (metal front cover) by removing the screws in the four corners and the two on the DC disconnect breaker. When reinstalling the deadfront ensure that the breaker handles are protruding through the slider as shown. E-Panel mounting holes E-Panel mounting holes. Place the E-Panel below the inverter and line up the E-Panel mounting holes with the holes in the backplate.
SMA E-Panel installation manual Hinge Pin Cover mounting bracket on E-Panel Plastic cover installation: To install the cover line up both molded in hinge pins with the cover mounting brackets and slide down into position. Hinge pin installed into mounting bracket Attaching the Autoformer – Required for AC coupling of a single Sunny Island inverter. The tall backplate is required when using the MNX240 AutoFormer.
SMA E-Panel installation manual Mounting the SMA E-Panel to the wall continued: 2/0 Battery cable lengths necessary to complete installation as shown above: Above: Quad system with Battery Combiner. Studs are shown for reference and are at 16” centers. If mounting on plywood use ¾” material. Use a minimum of eight 1/4” screws per backplate. E-Panel #1 #2 #3 #4 Positive 71” 45” 30” 60” Negative 71” 41” 44” 75” Pre-Wired Systems: Systems are available pre-assembled / pre-wired.
SMA E-Panel installation manual Front Top Right Side knockout location Bottom knockout location 14 | P a g e 10-234-1 REV: A
SMA E-Panel installation manual System wiring The SMA E-Panel is a complex system and should be wired by a qualified electrician. Danger: Hazardous voltages are present throughout the system. All power must be removed before attempting any wiring or maintenance of the system. Danger: Il y a haute tension partout dans le système entière. Débrancher toutes les sources d’alimentation avant faisant des connections ou l’entretien. The following pages contain wiring diagrams for many configurations.
SMA E-Panel installation manual INSTALLING CONDUIT BETWEEN E-PANELS: Conduit and fitting parts Bushing Nut Fitting Conduit With one inverter installed, remove the top and bottom knockouts (see image next page) that face the other E-Panel and push one of the fittings from the outside through the knockout opening into the E-Panel.
SMA E-Panel installation manual Knockouts Removed Place a fitting on one side of a conduit and insert the other end of the conduit into one of the fittings installed in the previous step. Remove the facing knockouts on the second inverter. Move the second E-Panel into place. Secure the E-Panel to the wall then, secure the conduits with a nut and bushing. Make sure to use the bushing. It is there to protect the wiring.
SMA E-Panel installation manual Installing conduit between Inverters continued. Typical wire routing between E-Panels. Refer to the appropriate wiring diagram for your system. In the example above L2OUT goes from the transfer breakers on the master to the L2OUT busbar on the slave unit, L2IN goes from the L2IN busbar on the master unit to the L2IN busbar on the Slave unit, all in the lower conduit. The ground can be in either conduit as is convenient.
SMA E-Panel installation manual Master unit Slave unit Inverter wiring and wiring between E-Panels complete. Ready for AC/DC in and out connections. AC Coupled Systems. AC coupling allows a grid-tie system to also provide backup power during an outage. Grid tied systems are required to stop sending power to the grid immediately upon a power failure. This is for the safety of the linespersons effecting repairs as well as others who may encounter downed lines.
SMA E-Panel installation manual SMA SUNNY ISLAND OFF GRID SYSTEM WITH SINGLE CLASSIC CHARGE CONTROLLER DRAWN BY T.
SMA E-Panel installation manual SMA SUNNY ISLAND OFF GRID HYBRID BATTERY / GENERATOR OR GRID CONNECTED UPS SYSTEM GROUND - SUNNY ISLAND OFF OFF OFF OFF OFF ON OFF ON 60 OFF ON ON ON OFF OFF 60 60 ON ON OFF OFF 60 A 60 A OFF L1 IN L1 OUT OFF OFF ON OFF ON ON ON OFF ON ON OFF 60 OFF ON AC INPUT OFF 250 ON BYPASS AC OUTPUT ON ON ON OFF ON ON OFF ON BATTERY NEGATIVE NORMAL OFF ON GROUND + HOT IN NEUTRAL GROUND HOT OUT NEUTRAL LOADS 120VAC BATTERY POSITIVE
SMA E-Panel installation manual Typical complete single system. Parts sold separately.
SMA E-Panel installation manual SMA QUAD STACK WITH BATTERY COMBINER / DISTRIBUTION BOX DC WIRING DRAWN BY T.
SMA E-Panel installation manual SMA QUAD STACK WITH BATTERY COMBINER DISTRIBUTION BOX AC WIRING DRAWN BY T.
SMA E-Panel installation manual SMA DUAL SUNNY ISLAND OFF GRID HYBRID BATTERY / GENERATOR OR GRID CONNECTED UPS SYSTEM DRAWN BY T.
SMA E-Panel installation manual SMA DUAL SUNNY ISLAND OFF GRID SYSTEM WITH 2 CLASSIC CONTROLLERS DRAWN BY T.
SMA E-Panel installation manual MIDNITE SOLAR SMA SUNNY ISLAND DUAL STACK WITH SUNNY BOY AC COUPLING AND GENERATOR BACK UP- SMARB AUTO TRANSFER SWITCH WIRING DRAWN BY T.
SMA E-Panel installation manual SMA 3 PHASE WITH BATTERY COMBINER / DISTRIBUTION BOX NO BYPASS SWITCH DRAWN BY T.
SMA E-Panel installation manual SMA 3 PHASE WITH BATTERY COMBINER / DISTRIBUTION BOX DC WIRING DRAWN BY T.
SMA E-Panel installation manual SMA 3 PHASE WITH BATTERY COMBINER / DISTRIBUTION BOX AC WIRING DRAWN BY T.
SMA E-Panel installation manual Classic Charge Controller Classic Lite Charge Controller Classic Charge Controller - Optional accessory The Classic and Classic Lite MPPT Charge Controllers helps you get the most from your power source as well as providing ground fault and arc fault protection. A Quad system may have up to seven Classic Charge Controllers. WARNING: Shock hazard. Disconnect the batteries and input power (PV, Hydro, Wind ETC.) before opening the Classic front cover.
SMA E-Panel installation manual Regulated DC output To E-Panel Negatives (Common) DC input from Solar/Wind/Hydro Ethernet connection USB connection Chassis ground Battery temperature sensor Conduit nipple Classic Wiring compartment Above: Basic wiring connections to the Classic. When selecting wire and breakers for the Classic (or any device) remember that the breakers are there to protect the wiring, not the equipment.
SMA E-Panel installation manual SMA SYSTEM WITH 2 CLASSIC CONTROLLERS NEUTRAL AC 2 GEN / GRID NEUTRAL GROUND-PE GROUND-PE AC 1 LOADS / SUNNY BOYS Negative connections from Classic go to the negative busbar on the shunt GROUND BATTERY POSITIVE + BATTERY NEGATIVE INVERTER 2 SLAVE SUNNY ISLAND - Input and output breakers for the Classic BATT NEG 250 ON ON ON OFF OFF 60 60 A A AC INPUT AC OUTPUT The Classics battery output goes to the Battery Plus Bus for single Classic installations.
SMA E-Panel installation manual Generic charge controller Single DC-GFP Wiring. The MidNite Solar Classic charge controller has the DC-GFP plus arc detection built in and does not require an external DC-GFP 80 amp panel mount DC-GFP ready for the high current wires. 63 amp din rail DC-GFP wired with a 63 amp PV disconnect and a 63 amp controller output breaker. The DC-GFP device monitors current flowing between battery negative and earth ground and will trip when more than ½ amp is present.
SMA E-Panel installation manual The wiring diagrams show a PV disconnect breaker connected directly after the PV array + busbar and before the DC-GFP. It doesn’t matter which order these two devices are connected. The DC-GFP can be connected to the Array plus output before the PV disconnect just as well. Make sure that the polarity of all DC dinrail breakers is correct. MidNite Solar panel mount breakers are not polarity sensitive. The din rail mount breakers have a + sign at the bottom terminal.
SMA E-Panel installation manual Whiz Bang Jr. Optional Accessory The Whiz Bang Jr. attaches to a 500 Amp / 50 mv shunt to send real time information to the Classic Charge Controller. Installation is a simple one wire connection. The Classic can use this information along with its internal measurements to get a clearer picture of how much power is actually going into and out of the batteries. Single wire to Classic Whiz Bang PCB Shunt Spacer Lock Washer Screw Shunt before installing the Whiz Bang Jr..
SMA E-Panel installation manual MNX240 Autoformer Continued: The step-down transformer configuration will be the most common as it steps power down from the 240VAC inverter to make it accessible and useful for the 120VAC Sunny Island. In this configuration, L1 and L2 (240VAC) power is applied to the 25Amp breakers of the MNX-240 Autotransformer. 120VAC is then available from the output to system neutral.
SMA E-Panel installation manual MNX240 Autoformer Continued: Autoformer wire routing when used with the Tall Backplate. Knockout Location Knockout Location The wiring from the E-Panel to the Autoformer and back is routed behind the Tall Backplate. A knockout is provided in the E-Panel and in the AutoFormer with clearance holes in the Tall Backplate to allow the wiring between E-Panel and AutoFormer to be out of sight and out of the way.
SMA E-Panel installation manual Optional accessory MNBE8D2x2 Battery Box: Left: Two MNBE8D2X2 shown stacked (Larry not included) Description: NEW PRODUCT! Battery enclosure holds 4 8D batteries Battery Enclosure with locking door and one shelf. Outdoor 3R rain type design. Powder coated aluminum and stainless steel construction. Holds four 8D batteries. Comes with 250 amp battery breaker and has spaces for up to 4 MNDC panel mount breakers (1 to 100 amps available). Ships un-assembled. Size 36"L x 28.
SMA E-Panel installation manual MidNite Solar Battery Disconnect Module – MNBDM (Optional) The Midnite Solar Battery Disconnect Module (MNBDM) is an optional circuit board which can be installed in most MidNite Solar E-Panels. It is used in conjunction with one or more MNBH Disconnect switches and MidNite Solar disconnecting combiners to remotely shutdown the system in emergencies.
SMA E-Panel installation manual MNBirdhouse Optional accessory • Located at ground level, the Birdhouse provides a safe means to disconnect high voltage PV arrays from MidNite Disconnecting and Arc Fault combiners • Hard wired connection gives positive feedback that the Disconnect on the roof has actually been thrown. Connection is via 600/1000v Cat 5 USE-2 cable • Up to four separate means of power including battery backup insures that the disconnect will be tripped when the button is pushed • Voice and L.
SMA E-Panel installation manual Below are some of the new requirements for NEC 2014. In short, there is a requirement for a “Rapid Shutdown”. This is accomplished nicely with the MidNite Solar Birdhouse, Disco Combiners and MNBDM Battery Disconnect Module (located in the E-Panel). Where there is more than one source of power this is even more critical. Consider a system with solar panels and battery backup.
SMA E-Panel installation manual Appendix A Wire size based on breaker size @75°C. Breaker Size AWG Wire Size Wire Size mm2 10 Amp 15 Amp 20 Amp 30 Amp 40 Amp 50 Amp 60 Amp 70 Amp 80 Amp 90 Amp 100 Amp 125 Amp 175 Amp 250 Amp 16 AWG 14 AWG 12 AWG 10 AWG 8 AWG 8 AWG 6 AWG 4 AWG 4 AWG 2 AWG 2 AWG 1/0 AWG 2/0 AWG 4/0 AWG 1.31 mm2 2.08 mm2 3.31 mm2 5.26 mm2 8.36 mm2 8.36 mm2 13.3 mm2 21.1 mm2 21.1 mm2 33.6 mm2 33.6 mm2 53.5 mm2 67.
SMA E-Panel installation manual Appendix D E-Panel descriptions MNE250SMA-AC-SINGLE Master E-Panel in a single Sunny Island system. (SunnyBoy inverter required) The master includes the input/output bypass system along with separate AC input and output breakers. This E-Panel is used in conjunction with a Sunny Island inverter as part of an AC Coupled system. Comes with a 250 Amp battery disconnect breaker and inverter cables. Pre-wired with AC input and output wiring.
SMA E-Panel installation manual MNE250SMA-OG Single Master E-Panel in a Single 6KW Sunny Island inverter system. The system is for off-grid, battery backup grid tie or battery backup. This E-Panel includes a 60 amp AC Output/Bypass system, separate AC input and output breakers for the Master inverter, 250 amp relay trip battery breaker with inverter cables, 500 amp/50mV shunt, battery negative busbar, AC input and output busbars, neutral and ground busbars, AC input and output wiring.
SMA E-Panel installation manual MNE250SMA-OG/AC DM Master E-Panel for a dual off-grid, AC Coupled or battery backup 120/240 VAC Sunny Island inverter system Comes with AC output/bypass assembly and independent AC input and output breakers, 500A/50mV shunt, neutral and AC IN and OUT terminal busbars, 250A relay trip battery breaker with inverter cables, AC wiring to inverter.
SMA E-Panel installation manual MNE250SMA-Quad Mstr Master E-Panel for an 18-24KW quad Sunny Island inverter system. The quad system can be off-grid, AC coupled, battery backup grid tie or battery backup. Three Slave E-Panels and three additional Sunny Island inverters required.
SMA E-Panel installation manual MNE250SMA-3PH Master Master E-Panel in a 3 phase system. Two slaves are also required for 3 phase. The 3 phase master includes the 3 phase input/output bypass system. This E-Panel can be used in conjunction with a Sunny Island inverter as part of a 3 phase offgrid, battery backup or AC Coupled system. Terminals are provided for hookup to leg 2 and leg 3 E-Panels. Comes with a 250Amp relay trip battery disconnect breaker and inverter cables.
SMA E-Panel installation manual MNE250SMA-SLAVE Companion E-Panel for dual, triple and quad Sunny Island inverter systems. The Slave EPanel is the same part number for all multiple SMA E-Panel systems regardless of off-grid, AC coupled, battery backup, 3 phase or quad. This E-Panel does not include any AC Output/Bypass system.
SMA E-Panel installation manual Appendix E Exchanging Bus Bars Slave units are shipped with red AC in and out wires as well as red bus bar mounts. It may be desired to change to another color to identify a different phase.
SMA E-Panel installation manual Starting with a slave unit Remove cover by gently rocking Finish removing the terminal block Terminal block is removed. Set aside New mounting block Note the mounting block locating pin Replace the Busbar and press into place Replace wiring cover. Black cover shown here Gently pry back ear of mounting block and push up on terminal block from below Remove screws in mounting blocks to remove mounting blocks. Set screws aside Position new mounting blocks as shown.
SMA E-Panel installation manual MIDNITE SOLAR INC. LIMITED WARRANTY MidNite Solar Power electronics, sheet metal enclosures and accessories MidNite Solar Inc. warrants to the original customer that its products shall be free from defects in materials and workmanship. This warranty will be valid for a period of five (5) years for all products except the MNKID Charge Controller which will be two (2) years.
