Automatic Transfer Switches
An automatic transfer switch is the part of a standby system that decides how fast the lights come back on. This collection runs from 50-amp, 10-circuit Champion units (100950) up through 200-amp service-entrance models that carry a whole house on one switch. For residential work, Champion's aXis line covers 100A, 150A, and 200A service entrance…
107 products
Top Sellers — Market Front-Runners
The same Tier-1 lines as the big national players · live PES pricing
Top Seller
Trina Solar
Trina Solar Vertex N 600W N-Type TOPCon Commercial Module
$158.06
$0.26/W · 600WAvailable to orderLead time confirmed at checkoutTop Seller
ZNShine
ZNshine 400W ZXM7-SH108-400/M All Black Monocrystalline...
$136.86
$0.34/W · 400WIn stockShips in 1–2 business daysTop Seller
ZNShine
ZNShine Solar 405W 108-Cell Solar Panel
$147.61
$0.36/W · 405WAvailable to orderLead time confirmed at checkout
LONGi
LONGi Hi-MO X6 Scientist 600W N-Type TOPCon Bifacial Mo...
$161.29
$0.27/W · 600WAvailable to orderLead time confirmed at checkout
Jinko Solar
Jinko Tiger Neo N-Type 600W Bifacial TOPCon Solar Panel
$164.52
$0.27/W · 600WAvailable to orderLead time confirmed at checkout
Canadian Solar
Canadian Solar HiKu6 395W Mono Solar Panel - CS6R-395MS-HL
$162.00
$0.41/W · 395WAvailable to orderLead time confirmed at checkout
Hyundai Energy Solutions
Hyundai HiS-S410YH(BK) 410W Bifacial Commercial Solar P...
$167.76
$0.41/W · 410WAvailable to orderLead time confirmed at checkout
Talesun
Talesun TM7G54M-450 450W Bifacial Solar Panel
$185.63
$0.41/W · 450WAvailable to orderLead time confirmed at checkout
Aptos
Aptos Solar DNA-120-BF10-440W 440W Bifacial Solar Panel
$185.92
$0.42/W · 440WAvailable to orderLead time confirmed at checkout
JA Solar
JA Solar 545 W Solar Panel – JAM72D30‑545/MB, 144‑cell ...
$262.79
Available to orderLead time confirmed at checkout
Trina Solar
Trina Solar Vertex N 600W N-Type TOPCon Commercial Module
$158.06
$0.26/W · 600WAvailable to orderLead time confirmed at checkoutTop Seller
ZNShine
ZNshine 400W ZXM7-SH108-400/M All Black Monocrystalline...
$136.86
$0.34/W · 400WIn stockShips in 1–2 business daysTop Seller
ZNShine
ZNShine Solar 405W 108-Cell Solar Panel
$147.61
$0.36/W · 405WAvailable to orderLead time confirmed at checkout
LONGi
LONGi Hi-MO X6 Scientist 600W N-Type TOPCon Bifacial Mo...
$161.29
$0.27/W · 600WAvailable to orderLead time confirmed at checkout
Jinko Solar
Jinko Tiger Neo N-Type 600W Bifacial TOPCon Solar Panel
$164.52
$0.27/W · 600WAvailable to orderLead time confirmed at checkout
Canadian Solar
Canadian Solar HiKu6 395W Mono Solar Panel - CS6R-395MS-HL
$162.00
$0.41/W · 395WAvailable to orderLead time confirmed at checkout
Hyundai Energy Solutions
Hyundai HiS-S410YH(BK) 410W Bifacial Commercial Solar P...
$167.76
$0.41/W · 410WAvailable to orderLead time confirmed at checkout
Talesun
Talesun TM7G54M-450 450W Bifacial Solar Panel
$185.63
$0.41/W · 450WAvailable to orderLead time confirmed at checkout
Aptos
Aptos Solar DNA-120-BF10-440W 440W Bifacial Solar Panel
$185.92
$0.42/W · 440WAvailable to orderLead time confirmed at checkout
JA Solar
JA Solar 545 W Solar Panel – JAM72D30‑545/MB, 144‑cell ...
$262.79
Available to orderLead time confirmed at checkout-
Vendor:CumminsRegular price $830.21 USDRegular priceUnit price per
$833.21 USDSale price $830.21 USDIn stockShips in 1–2 business daysSaleIn Stock -
Vendor:CumminsRegular price $813.49 USDRegular priceUnit price per
$816.49 USDSale price $813.49 USDIn stockShips in 1–2 business daysSaleIn Stock -
Vendor:Cummins-3%Regular price $2,839.29 USDRegular priceUnit price per
$2,927.10 USDSale price $2,839.29 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Cummins-3%Regular price $3,787.72 USDRegular priceUnit price per
$3,904.87 USDSale price $3,787.72 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Cummins-3%Regular price $2,839.29 USDRegular priceUnit price per
$2,927.10 USDSale price $2,839.29 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Cummins-3%Regular price $3,787.72 USDRegular priceUnit price per
$3,904.87 USDSale price $3,787.72 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Cummins-3%Regular price $3,637.27 USDRegular priceUnit price per
$3,749.76 USDSale price $3,637.27 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Cummins-3%Regular price $4,591.75 USDRegular priceUnit price per
$4,733.76 USDSale price $4,591.75 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Cummins-3%Regular price $3,637.27 USDRegular priceUnit price per
$3,749.76 USDSale price $3,637.27 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Cummins-3%Regular price $4,591.75 USDRegular priceUnit price per
$4,733.76 USDSale price $4,591.75 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Cummins-3%Regular price $7,833.22 USDRegular priceUnit price per
$8,075.49 USDSale price $7,833.22 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Growatt-9%Regular price $636.00 USDRegular priceUnit price per
$699.00 USDSale price $636.00 USDAvailable to orderShips in 5–10 business daysSaleIn Stock -
Vendor:KohlerRegular price $1,126.00 USDRegular priceUnit price per
$1,129.00 USDSale price $1,126.00 USDIn stockShips in 1–2 business daysSaleIn Stock -
Vendor:GeneracRegular price $796.00 USDRegular priceUnit price per
$799.00 USDSale price $796.00 USDIn stockShips in 1–2 business daysSaleIn Stock -
Vendor:GeneracRegular price $826.00 USDRegular priceUnit price per
$829.00 USDSale price $826.00 USDIn stockShips in 1–2 business daysSaleIn Stock -
Vendor:GeneracRegular price $2,024.92 USDRegular priceUnit price per
-
Vendor:Tigo EnergyRegular price $465.51 USDRegular priceUnit price per
-
Vendor:Tigo EnergyRegular price $2,057.24 USDRegular priceUnit price per
-
Vendor:Cummins-3%Regular price $1,512.62 USDRegular priceUnit price per
$1,559.40 USDSale price $1,512.62 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:Cummins-3%Regular price $1,597.04 USDRegular priceUnit price per
$1,646.44 USDSale price $1,597.04 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:CumminsRegular price $2.00 USDRegular priceUnit price per
-
Vendor:Cummins-3%Regular price $4,170.65 USDRegular priceUnit price per
$4,299.64 USDSale price $4,170.65 USDAvailable to orderShips in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)SaleIn Stock -
Vendor:KohlerRegular price $4,225.00 USDRegular priceUnit price per
-
Vendor:Tigo EnergyRegular price $2,194.00 USDRegular priceUnit price per
-
Vendor:ChampionRegular price $1,295.75 USDRegular priceUnit price per
-
Vendor:ChampionRegular price $1,295.75 USDRegular priceUnit price per
-
Vendor:ChampionRegular price $677.00 USDRegular priceUnit price per
-
Vendor:ChampionRegular price $546.00 USDRegular priceUnit price per
-
Sold Out — Call or EmailVendor:Cummins-3%Regular price $3,637.27 USDRegular priceUnit price per$3,749.76 USDSale price $3,637.27 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:Tigo Energy-16%Regular price $1,732.66 USDRegular priceUnit price per$2,055.99 USDSale price $1,732.66 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:Tigo Energy-10%Regular price $1,944.13 USDRegular priceUnit price per$2,149.99 USDSale price $1,944.13 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:KohlerRegular price $5,997.00 USDRegular priceUnit price per$6,000.00 USDSale price $5,997.00 USD$300/kWOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $546.00 USDRegular priceUnit price per$549.00 USDSale price $546.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $739.00 USDRegular priceUnit price per$749.00 USDSale price $739.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $749.00 USDRegular priceUnit price per$759.00 USDSale price $749.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $756.00 USDRegular priceUnit price per$759.00 USDSale price $756.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $909.00 USDRegular priceUnit price per$919.00 USDSale price $909.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $909.00 USDRegular priceUnit price per$919.00 USDSale price $909.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $1,349.00 USDRegular priceUnit price per$1,369.00 USDSale price $1,349.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $1,349.00 USDRegular priceUnit price per$1,369.00 USDSale price $1,349.00 USDOut of stockSold Out — Call or Email -
Vendor:GeneracRegular price $1,379.00 USDRegular priceUnit price per$1,399.00 USDSale price $1,379.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $1,429.00 USDRegular priceUnit price per$1,459.00 USDSale price $1,429.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $1,759.00 USDRegular priceUnit price per$1,789.00 USDSale price $1,759.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $2,126.00 USDRegular priceUnit price per$2,129.00 USDSale price $2,126.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $2,289.00 USDRegular priceUnit price per$2,329.00 USDSale price $2,289.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $2,309.00 USDRegular priceUnit price per$2,349.00 USDSale price $2,309.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:GeneracRegular price $2,329.00 USDRegular priceUnit price per$2,369.00 USDSale price $2,329.00 USDOut of stockSold Out — Call or Email -
Sold Out — Call or EmailVendor:ChampionRegular price $1,395.50 USDRegular priceUnit price per
About Automatic Transfer Switches
An automatic transfer switch is the part of a standby system that decides how fast the lights come back on. This collection runs from 50-amp, 10-circuit Champion units (100950) up through 200-amp service-entrance models that carry a whole house on one switch.
For residential work, Champion's aXis line covers 100A, 150A, and 200A service entrance in NEMA 3R enclosures — outdoor-rated, so the switch can sit at the meter where it belongs. Cummins' RA Series 100-amp gives you 20 spaces of load management in the same NEMA 3R format. On the commercial side, the Cummins OTEC 125A handles 208V and 480V three-phase, open transition, for small commercial services.
We tell every customer the same thing: size the switch to the service, not the generator. A 22kW standby unit on a 200A service still needs a 200A service-rated ATS if you want whole-house coverage. Drop to a 50A or 100A sub-panel switch only when you've picked the critical circuits deliberately.
Service entrance, sub-panel, single and three-phase — the full range is in the catalog.