{"title":"Transfer Switches","description":"\u003c!-- alte-transfer-switches-hub-2026-10-07 --\u003e\n\u003cp\u003eA backup switch, or transfer device, separates your home or your backed-up loads from the utility grid during an outage so a battery system can power them, then reconnects them when grid power returns. This collection carries battery-backup switching devices for three ecosystems: the Tesla Backup Switch for Powerwall, the Enphase IQ Meter Collar for the Enphase Energy System, and the GoodWe Automatic Backup Device (ABD) for compatible GoodWe hybrid systems.\u003c\/p\u003e\n\u003ch2\u003eBest for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWhole-home battery backup installs that use a meter-collar topology, where the utility allows it\u003c\/li\u003e\n\u003cli\u003eRetrofits where moving loads into a separate backup subpanel would be the main labor cost\u003c\/li\u003e\n\u003cli\u003eGoodWe hybrid systems that need automatic grid-to-backup transfer for designated loads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhich backup switch fits your system\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"\/products\/tesla-backup-switch-meter-collar-1624171-00-x\"\u003eTesla Backup Switch (Meter Collar), 1624171-00-X\u003c\/a\u003e.\u003c\/strong\u003e Installs in the meter socket between the utility meter and the meter base. A contactor inside the collar controls the home's connection to the grid so Powerwall can island the house during an outage, and a built-in consumption meter monitors home energy use. It is intended only for Tesla Powerwall system designs that specify it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"\/products\/enphase-iq-meter-collar-adapter-mc-200-011-v01\"\u003eEnphase IQ Meter Collar Adapter, MC-200-011-V01\u003c\/a\u003e.\u003c\/strong\u003e A meter-socket adapter that enables whole-home backup with the Enphase Energy System without building a separate backup subpanel or rewiring individual loads. It installs between the meter socket and the utility meter and works with IQ System Controller–based systems per Enphase's guides.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"\/products\/goodwe-abd-automatic-backup-device-abd11k4-12-00p\"\u003eGoodWe ABD Automatic Backup Device, ABD11K4-12-00P\u003c\/a\u003e.\u003c\/strong\u003e When the grid fails, the ABD switches designated loads to inverter and battery backup power, and it returns them to utility power when the grid comes back. GoodWe documents ABD use with its ES-US \/ SBP-US hybrid families; confirm the pairing and ratings for this model against current GoodWe documentation.\u003c\/p\u003e\n\u003ch2\u003eImportant considerations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEach device is built for its own ecosystem. Don't assume a Tesla, Enphase, or GoodWe backup switch works with another brand's battery or inverter.\u003c\/li\u003e\n\u003cli\u003eMeter collars need utility approval before you order. Many utilities restrict or prohibit them, and meter removal is typically a utility function.\u003c\/li\u003e\n\u003cli\u003eConfirm meter socket type, service amperage, and the manufacturer's supported system topology for your equipment generation.\u003c\/li\u003e\n\u003cli\u003eThis is service-equipment work: licensed electricians, utility coordination, and the manufacturer's install manual are required. Full details are on each product page.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRelated: \u003ca href=\"\/collections\/solar-batteries\"\u003esolar batteries\u003c\/a\u003e, \u003ca href=\"\/collections\/hybrid-inverters\"\u003ehybrid inverters\u003c\/a\u003e, \u003ca href=\"\/collections\/gateways-communication\"\u003egateways and communication\u003c\/a\u003e, and \u003ca href=\"\/collections\/disconnects-breakers\"\u003ebreakers and disconnects\u003c\/a\u003e, plus \u003c!-- alte-lc-links-2026-10-07 --\u003e\u003ca href=\"\/collections\/load-centers\"\u003eload centers \u0026amp; panels\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eBackup switch FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does a backup switch do in a solar-plus-battery system?\u003c\/summary\u003e\n\u003cp\u003eIt disconnects the home, or a set of designated loads, from the utility grid during an outage so the battery and inverter can power them safely, then reconnects them when the grid returns. The Tesla Backup Switch does this with a contactor in a meter collar; the GoodWe ABD automatically transfers designated loads to backup power.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is a meter collar?\u003c\/summary\u003e\n\u003cp\u003eA meter collar installs in the meter socket between the utility meter and the meter base. The Tesla Backup Switch and the Enphase IQ Meter Collar both use this approach, which can avoid moving loads into a separate backup subpanel when the system topology allows it.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use a Tesla Backup Switch or Enphase IQ Meter Collar with another battery brand?\u003c\/summary\u003e\n\u003cp\u003eNo. The Tesla Backup Switch is intended specifically for Tesla Powerwall systems, and the Enphase IQ Meter Collar is for the Enphase Energy System. The GoodWe ABD is for compatible GoodWe hybrid systems. Check the manufacturer's install documentation for your exact equipment.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need utility approval for a meter collar?\u003c\/summary\u003e\n\u003cp\u003eYes. Many utilities restrict or prohibit meter collars or run specific programs for them, so confirm acceptance with your utility before ordering or scheduling. Installation involves the utility meter and service equipment, so it requires a licensed electrician and utility coordination.\u003c\/p\u003e\n\u003c\/details\u003e","products":[{"product_id":"enphase-iq-meter-collar-adapter-mc-200-011-v01","title":"Enphase IQ Meter Collar, 200A Meter-Socket Backup Adapter – MC-200-011-V01","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Enphase IQ Meter Collar (model MC-200-011-V01) is a meter-socket adapter with a built-in microgrid interconnection device (MID) and energy meter. It installs between the utility meter and an ANSI Form 2S meter socket, or on a separate meter socket on the load side of the service, and is rated for 200 A continuous current.\u003c\/p\u003e\n\u003cp\u003eIn an Enphase Energy System with batteries, the MID is the switch that disconnects the home from the grid during an outage so the Enphase system can power it, then reconnects when the grid returns. Enphase says installing it at the meter lowers the cost of whole-home backup.\u003c\/p\u003e\n\u003cp\u003eEnphase lists the meter collar for use with specific Enphase equipment (see the table). Enphase lists third-party inverter support with the 4th-generation Enphase Energy System.\u003c\/p\u003e\n\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnphase whole-home backup:\u003c\/strong\u003e Enphase's datasheet lists it with the IQ Battery 10C\/10CS and IQ Combiner 6C (4th-generation system), and with IQ Battery 5P, IQ Combiner 5\/5C and IQ System Controller 3M (3rd-generation system).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120\/240 V split-phase homes with a 200 A Form 2S meter socket:\u003c\/strong\u003e Ring or ringless sockets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Specifications\u003c\/h3\u003e\n\u003ctable class=\"alte-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eMeter-socket adapter with integrated microgrid interconnection device (MID) and consumption meter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel; ordering SKUs\u003c\/td\u003e\n\u003ctd\u003eMC-200-011-V01 (Enphase also lists ordering SKU MC-200-011-V01-2). Enphase says to use the model number for interconnection applications and permitting.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid supply\u003c\/td\u003e\n\u003ctd\u003e120\/240 VAC, 180°, split-phase; 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum continuous current\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum short-circuit current withstand\u003c\/td\u003e\n\u003ctd\u003e22 kA (limited by an external overcurrent protection device)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum overcurrent protection device\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeter and socket interface\u003c\/td\u003e\n\u003ctd\u003eANSI Form 2S, 200 A, ringless or ring type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated consumption meter\u003c\/td\u003e\n\u003ctd\u003e±0.5% accuracy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvervoltage category\u003c\/td\u003e\n\u003ctd\u003eCategory IV (service entrance-rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower consumption\u003c\/td\u003e\n\u003ctd\u003e3.8 W nominal (2.5–5.8 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnphase equipment compatibility (per Enphase)\u003c\/td\u003e\n\u003ctd\u003eGateway ENV2-IQ-AM1-240 and ENV-IQ-AM1-240; COMMS-KIT-02; IQ8, IQ7 and IQ6 Series microinverters. 4th generation: IQ Battery 10C (IQBATTERY-10C-1P-NA), IQ Battery 10CS and IQ Combiner 6C (X-IQ-AM1-240-6C). 3rd generation: IQ Battery 5P (IQBATTERY-5P-1P-NA), IQ Combiner 5\/5C and IQ System Controller 3M (SC200D111CMC1US01).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThird-party inverters and legacy Enphase microinverters\u003c\/td\u003e\n\u003ctd\u003eSupported with the 4th-generation Enphase Energy System, per Enphase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterfaces\u003c\/td\u003e\n\u003ctd\u003e4-wire control connector (24 VDC); manual override lever; push button; status LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIn the box\u003c\/td\u003e\n\u003ctd\u003eMeter collar, seal ring, plastic hanging bag, quick install guide, accessories kit (control connector, junction box sub-assembly, 1\/2 in NPT cable gland), blank cover plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure; temperature\u003c\/td\u003e\n\u003ctd\u003eIndoor\/outdoor, NEMA Type 3R; −40°C to 50°C (−40°F to 122°F); forced-convection cooled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum altitude\u003c\/td\u003e\n\u003ctd\u003e2,500 m (8,200 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions; weight\u003c\/td\u003e\n\u003ctd\u003e175 × 206 × 128 mm (6.9 × 8.1 × 5.0 in); 1.63 kg (3.6 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance (per Enphase)\u003c\/td\u003e\n\u003ctd\u003eUL 414, CSA C22.2 No. 115:2025; CFR 47 Part 15B; UL 1741 SA\/SB (IEEE 1547:2018); current sensor for a power control system under UL 3141\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty (per Enphase)\u003c\/td\u003e\n\u003ctd\u003e15-year limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSource\u003c\/td\u003e\n\u003ctd\u003eEnphase IQ Meter Collar datasheet DSH-00468-7.0-EN-2026-04-30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat You May Also Need\u003c\/h3\u003e\n\u003ch4\u003eUsually required\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnphase battery and controller equipment from the compatibility list:\u003c\/strong\u003e For example, the \u003ca href=\"\/products\/enphase-10c-lfp-battery\"\u003eIQ Battery 10C\u003c\/a\u003e with the \u003ca href=\"\/products\/enphase-iq-combiner-6cx-iq-am1-240-6c\"\u003eIQ Combiner 6C\u003c\/a\u003e, or the \u003ca href=\"\/products\/enphase-iqbattery-5p-1p-na-battery-kit-assembly\"\u003eIQ Battery 5P\u003c\/a\u003e with IQ Combiner 5\/5C and IQ System Controller 3M.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl cable:\u003c\/strong\u003e 4-wire signaling between the collar and the Enphase system. Enphase lists an 18\/4 TC-ER control cable spool (CTRL-SC3-NA-01) as an accessory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUtility approval:\u003c\/strong\u003e The collar installs at the utility meter, so the utility must allow it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eMay be required\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnphase accessory kits:\u003c\/strong\u003e A replacement junction box assembly (ACC-MC-200 for MC-200-011-V01), a jumper cover (JC-MC-200) or a 200 A ringless meter socket (MP-MC-200) for load-side installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA separate meter socket:\u003c\/strong\u003e Needed if the collar is installed on the load side rather than at the utility meter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eOptional upgrades\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/enphase-env2-iq-am1-240-iq-envoy-system-monitor-and-gateway\"\u003eEnphase IQ Gateway, Metered (ENV2-IQ-AM1-240)\u003c\/a\u003e:\u003c\/strong\u003e Listed by Enphase as a compatible gateway, for systems that do not already have one.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCheck current manufacturer documentation before combining components, especially batteries, inverters, communications equipment and system-control hardware.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Considerations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the system generation.\u003c\/strong\u003e Enphase lists IQ System Controller 3M (SC200D111CMC1US01) for 3rd-generation systems. Other IQ System Controller models are not on this datasheet's list, so confirm your controller model with Enphase before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm 2S, 200 A only.\u003c\/strong\u003e The collar fits ANSI Form 2S, 200 A meter sockets on 120\/240 V split-phase service. It is not for three-phase or higher-ampacity services.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUtility rules.\u003c\/strong\u003e Some utilities do not allow meter collars or require their own approval and inspection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation.\u003c\/strong\u003e Installing at the meter requires utility coordination and a qualified electrician.\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Enphase Energy","offers":[{"title":"Default Title","offer_id":47303174455515,"sku":"MC-200-011-V01","price":698.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0714\/3365\/0395\/files\/1_3.avif?v=1753388454"},{"product_id":"tesla-backup-switch-meter-collar-1624171-00-x","title":"Tesla Backup Switch, 200A Meter-Socket Switch for Powerwall – 1624171-00-X","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Tesla Backup Switch (model 1624171-xx-y; this listing is part 1624171-00-X) controls a Powerwall system's connection to the grid. Tesla says it installs behind the utility meter or in a standalone meter panel downstream of the utility meter, and it fits ANSI Type 2S meter sockets, ring or ringless.\u003c\/p\u003e\n\u003cp\u003eTesla says it detects grid outages automatically and switches the home to backup power. It communicates directly with Powerwall over CAN, and its built-in meter lets the Tesla app show home energy use.\u003c\/p\u003e\n\u003cp\u003eTesla lists it for Powerwall systems only: Powerwall 3, Powerwall+, and Powerwall 2 with Backup Gateway 2. It is not a general-purpose transfer switch for other battery brands.\u003c\/p\u003e\n\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTesla Powerwall whole-home backup:\u003c\/strong\u003e Tesla lists compatibility with Powerwall 3, Powerwall+ and Powerwall 2 with Backup Gateway 2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120\/240 V split-phase homes with a Type 2S meter socket:\u003c\/strong\u003e Rated 200 A continuous load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Specifications\u003c\/h3\u003e\n\u003ctable class=\"alte-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eMeter-socket backup switch for Tesla Powerwall systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel number\u003c\/td\u003e\n\u003ctd\u003e1624171-xx-y (this listing: 1624171-00-X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous load rating\u003c\/td\u003e\n\u003ctd\u003e200 A, 120\/240 V split-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-circuit current rating\u003c\/td\u003e\n\u003ctd\u003e22 kA with breaker (Tesla notes the breaker's maximum supply short-circuit current rating must be equal to or greater than the available fault current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eCAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC meter\u003c\/td\u003e\n\u003ctd\u003e±0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct compatibility (per Tesla)\u003c\/td\u003e\n\u003ctd\u003ePowerwall 2 with Backup Gateway 2, Powerwall+, Powerwall 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeter and socket compatibility\u003c\/td\u003e\n\u003ctd\u003eANSI Type 2S, ringless or ring type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService interface\u003c\/td\u003e\n\u003ctd\u003eContactor manual override (for service events); reset button\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConduit compatibility\u003c\/td\u003e\n\u003ctd\u003e1\/2 in NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure; pollution rating\u003c\/td\u003e\n\u003ctd\u003eNEMA 3R; PD3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e−40°C to 50°C (−40°F to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions; weight\u003c\/td\u003e\n\u003ctd\u003e176 × 205 × 74 mm (6.9 × 8.1 × 2.9 in); 2.8 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety standards (per Tesla)\u003c\/td\u003e\n\u003ctd\u003eUL 414, UL 414 SB, UL 2735, UL 916; FCC Part 15 Class B, ICES 003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpected service life; warranty (per Tesla)\u003c\/td\u003e\n\u003ctd\u003e21 years; 10-year warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSource\u003c\/td\u003e\n\u003ctd\u003eTesla Backup Switch datasheet dated 2024-04-29 (Tesla Energy Library)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat You May Also Need\u003c\/h3\u003e\n\u003ch4\u003eUsually required\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA compatible Tesla Powerwall system:\u003c\/strong\u003e Powerwall 3, Powerwall+, or Powerwall 2 with Backup Gateway 2, per Tesla.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUtility approval:\u003c\/strong\u003e The switch installs at or behind the utility meter, so the utility must allow it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eMay be required\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAn upstream breaker with an adequate short-circuit rating:\u003c\/strong\u003e Tesla's 22 kA rating applies with a breaker rated for the available fault current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA standalone meter panel:\u003c\/strong\u003e If the switch is installed downstream of the utility meter rather than behind it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eOptional upgrades\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/2 in NPT conduit fittings:\u003c\/strong\u003e For the switch's conduit connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCheck current manufacturer documentation before combining components, especially batteries, inverters, communications equipment and system-control hardware.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Considerations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowerwall systems only.\u003c\/strong\u003e Tesla lists compatibility with Powerwall 3, Powerwall+ and Powerwall 2 with Backup Gateway 2. Do not plan to use it with other brands' batteries or inverters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 A split-phase, Type 2S.\u003c\/strong\u003e Check that your meter socket is ANSI Type 2S and that the service is 120\/240 V split-phase at 200 A or less.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUtility rules.\u003c\/strong\u003e Some utilities do not allow meter-socket devices or require their own approval and inspection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation.\u003c\/strong\u003e Installation at the meter requires utility coordination and a qualified installer.\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"AltE Store","offers":[{"title":"Default Title","offer_id":48037624381659,"sku":"1624171-00-X","price":475.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0714\/3365\/0395\/files\/GUID-085CDF00-3A2A-4617-82BF-A2BE72A53368-online-en-US.png?v=1765219691"},{"product_id":"goodwe-abd-automatic-backup-device-abd11k4-12-00p","title":"GoodWe ABD Automatic Backup Device – ABD11K4-12-00P","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe GoodWe Automatic Backup Device (ABD), part number ABD11K4-12-00P, is a backup transfer accessory used with compatible GoodWe hybrid systems. When the grid fails, an ABD switches designated loads to inverter\/battery backup power; when the grid returns, it returns those loads to utility power.\u003c\/p\u003e\n\u003cp\u003eGoodWe positions the ABD family for North American split-phase homes alongside compatible GoodWe hybrid inverters, with inverter communication and load-monitoring capability. Confirm exact inverter pairing and electrical ratings for this SKU against current GoodWe documentation before purchase.\u003c\/p\u003e\n\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGoodWe hybrid installations that need automatic backup transfer for critical loads\u003c\/li\u003e\n\u003cli\u003eProjects specifying ABD11K4-12-00P by part number\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic grid-to-backup transfer for compatible GoodWe hybrid systems\u003c\/li\u003e\n\u003cli\u003eIntended for residential backup applications\u003c\/li\u003e\n\u003cli\u003ePart of GoodWe’s ABD product line for North America\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: GoodWe\u003c\/li\u003e\n\u003cli\u003ePart number \/ SKU: ABD11K4-12-00P\u003c\/li\u003e\n\u003cli\u003eProduct: Automatic Backup Device (ABD)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility \/ Important Considerations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify compatibility with your specific GoodWe inverter model (GoodWe documents ABD use with ES-US \/ SBP-US family hybrids — confirm for this SKU).\u003c\/li\u003e\n\u003cli\u003eDo not assume interchangeability with other ABD catalog numbers without checking ratings.\u003c\/li\u003e\n\u003cli\u003eProfessional installation required. Follow GoodWe manuals and local electrical code.\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"GoodWe","offers":[{"title":"Default Title","offer_id":50587696398555,"sku":"ABD11K4-12-00P","price":1440.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0714\/3365\/0395\/files\/goodwe-abd-ABD.png?v=1791402573"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0714\/3365\/0395\/collections\/goodwe-abd-ABD.png?v=1791418897","url":"https:\/\/www.altestore.com\/collections\/transfer-switches.oembed","provider":"AltE Store","version":"1.0","type":"link"}