Automatic Transfer Switches & Generator Accessories

Automatic transfer switches, manual transfer switches, remote monitoring modules, cold weather kits, wireless-monitoring kits, extended run tanks, and other standby generator accessories. Matched sizing from 100A to 1000A for residential, commercial, and industrial standby systems. Match the ATS to the service size. 100A and 200A cover most homes; 400A and above for light commercial. Contractors…

All brands →Buying guides:Best Whole House Generators GuideHome Backup Power Solutions

366 products

Top Sellers — Market Front-Runners The same Tier-1 lines as the big national players · live PES pricing
Top SellerTrina Solar Vertex N 600W N-Type TOPCon Commercial ModuleTrina Solar Trina Solar Vertex N 600W N-Type TOPCon Commercial Module $299.00 $0.50/W · 600WAvailable to orderLead time confirmed at checkoutTop SellerZNshine 400W ZXM7-SH108-400/M All Black Monocrystalline Solar PanelZNShine ZNshine 400W ZXM7-SH108-400/M All Black Monocrystalline... $141.99 $0.35/W · 400WIn stockShips in 1–2 business daysTop SellerZNShine Solar 405W 108-Cell Solar PanelZNShine ZNShine Solar 405W 108-Cell Solar Panel $147.61 $0.36/W · 405WAvailable to orderLead time confirmed at checkoutLONGi Hi-MO X6 Scientist 600W N-Type TOPCon Bifacial ModuleLONGi LONGi Hi-MO X6 Scientist 600W N-Type TOPCon Bifacial Mo... $161.29 $0.27/W · 600WAvailable to orderLead time confirmed at checkoutJinko Tiger Neo N-Type 600W Bifacial TOPCon Solar PanelJinko Solar Jinko Tiger Neo N-Type 600W Bifacial TOPCon Solar Panel $216.00 $0.36/W · 600WAvailable to orderLead time confirmed at checkoutCanadian Solar HiKu6 395W Mono Solar Panel - CS6R-395MS-HLCanadian Solar Canadian Solar HiKu6 395W Mono Solar Panel - CS6R-395MS-HL $162.00 $0.41/W · 395WAvailable to orderLead time confirmed at checkoutHyundai HiS-S410YH(BK) 410W Bifacial Commercial Solar PanelHyundai Energy Solutions Hyundai HiS-S410YH(BK) 410W Bifacial Commercial Solar P... $167.76 $0.41/W · 410WAvailable to orderLead time confirmed at checkoutTalesun TM7G54M-450 450W Bifacial Solar PanelTalesun Talesun TM7G54M-450 450W Bifacial Solar Panel $185.63 $0.41/W · 450WAvailable to orderLead time confirmed at checkoutAptos Solar DNA-120-BF10-440W 440W Bifacial Solar PanelAptos Aptos Solar DNA-120-BF10-440W 440W Bifacial Solar Panel $173.00 $0.39/W · 440WAvailable to orderLead time confirmed at checkoutJA Solar 545 W Solar Panel – JAM72D30‑545/MB, 144‑cell BifacialJA Solar JA Solar 545 W Solar Panel – JAM72D30‑545/MB, 144‑cell ... $148.26 Available to orderLead time confirmed at checkout
  • Generac EZ Transfer Operator - 5447 Generac EZ Transfer Operator

    Generac EZ Transfer Operator - 5447

    Generac

    MPN: PES-PA-ELC-1749

    $371.49 USD
    $371.49 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac 200 Amp 120/230 1Ø NEMA 3R 50Hz - RTSI200M3 Generac 200 Amp

    Generac 200 Amp 120/230 1Ø NEMA 3R 50Hz - RTSI200M3

    Generac

    MPN: PES-PA-ELC-1767

    $736.00 USD
    $736.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Champion Automatic Transer Switch aXis 200A SE NEMA 3R whole house - 102006 Champion Automatic Transer Switch aXis 200A SE NEMA 3R whole house - 102006 | Portlandia Electric Supply

    Champion Automatic Transer Switch aXis 200A SE NEMA 3R whole house - 102006

    Champion

    MPN: PES-PA-ELC-1399

    $1,395.50 USD
    $1,395.50 USD
    Available to order
    Lead time confirmed at checkout
    In Stock
  • Reliance Pro/Tran 2 310A 30A 10-Circuit Manual Transfer Switch

    Reliance Pro/Tran 2 310A 30A 10-Circuit Manual Transfer Switch

    Reliance

    MPN: REL-310A

    $429.99 USD
    $429.99 USD
    Available to order
    Lead time confirmed at checkout
    In Stock
  • Briggs and Stratton ACCM Power Management Upgrade Kit - Standard Transfer Switch PES Supply Briggs and Stratton ACCM Power Management Upgrade Kit - Standard Transfer Switch | Portlandia Electric Supply

    Briggs and Stratton ACCM Power Management Upgrade Kit - Standard Transfer Switch

    Briggs & Stratton

    MPN: ODOO-40683

    $24.25 USD
    $24.25 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs and Stratton Transfer Switch Conversion Kit: 2-Wire Start to Utility Sensing (AMF) - B&S Controller - 071041…

    Briggs and Stratton Transfer Switch Conversion Kit: 2-Wire Start to Utility Sensing (AMF) - B&S Controller - 071041

    Briggs & Stratton

    MPN: PES-PA-ELC-1894

    $139.43 USD
    $139.43 USD
    Pallet of 12
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • SMA BU-STRT-US-50 Transfer Switch

    SMA BU-STRT-US-50 Transfer Switch

    SMA

    MPN: PES-SPS-SOL-16434

    $169.95 USD
    $169.95 USD
    Pallet of 30
    Available to order
    Lead time confirmed at checkout
    In Stock
  • Briggs & Stratton Briggs and Stratton Dual 200 amp Symphony® II Transfer Switch Circuit Breaker Kit - 6310 | Portlandia

    Briggs and Stratton Dual 200 amp Symphony® II Transfer Switch Circuit Breaker Kit - 6310

    Briggs & Stratton

    MPN: PES-PA-ELC-1896

    $399.35 USD
    $399.35 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 400 amp Transfer Switch, 480V, NEMA 3R - 071155 | Portlandia Electric Supply

    Briggs and Stratton 400 amp Transfer Switch, 480V, NEMA 3R - 071155

    Briggs & Stratton

    MPN: PES-PA-ELC-1886

    $15,649.28 USD
    $15,649.28 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071153 | Portlandia Electric Supply

    Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071153

    Briggs & Stratton

    MPN: PES-PA-ELC-1885

    $15,649.28 USD
    $15,649.28 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 800 amp Transfer Switch, 480V, NEMA 3R - 071192 | Portlandia Electric Supply

    Briggs and Stratton 800 amp Transfer Switch, 480V, NEMA 3R - 071192

    Briggs & Stratton

    MPN: PES-PA-ELC-1877

    $14,526.69 USD
    $14,526.69 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 800 amp Transfer Switch, 240V, NEMA 3R - 071190 | Portlandia Electric Supply

    Briggs and Stratton 800 amp Transfer Switch, 240V, NEMA 3R - 071190

    Briggs & Stratton

    MPN: PES-PA-ELC-1876

    $14,526.69 USD
    $14,526.69 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 800 amp Transfer Switch, 208V, NEMA 3R - 071189 | Portlandia Electric Supply

    Briggs and Stratton 800 amp Transfer Switch, 208V, NEMA 3R - 071189

    Briggs & Stratton

    MPN: PES-PA-ELC-1875

    $14,526.69 USD
    $14,526.69 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 600 amp Transfer Switch, 480V, NEMA 3R - 071187 | Portlandia Electric Supply

    Briggs and Stratton 600 amp Transfer Switch, 480V, NEMA 3R - 071187

    Briggs & Stratton

    MPN: PES-PA-ELC-1874

    $12,129.03 USD
    $12,129.03 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 600 amp Transfer Switch, 240V, NEMA 3R - 071185 | Portlandia Electric Supply

    Briggs and Stratton 600 amp Transfer Switch, 240V, NEMA 3R - 071185

    Briggs & Stratton

    MPN: PES-PA-ELC-1873

    $12,129.03 USD
    $12,129.03 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 600 amp Transfer Switch, 208V, NEMA 3R - 071184 | Portlandia Electric Supply

    Briggs and Stratton 600 amp Transfer Switch, 208V, NEMA 3R - 071184

    Briggs & Stratton

    MPN: PES-PA-ELC-1872

    $12,129.03 USD
    $12,129.03 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 400 amp Transfer Switch, 480V, NEMA 3R - 071179 | Portlandia Electric Supply

    Briggs and Stratton 400 amp Transfer Switch, 480V, NEMA 3R - 071179

    Briggs & Stratton

    MPN: PES-PA-ELC-1871

    $7,159.46 USD
    $7,159.46 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071177 | Portlandia Electric Supply

    Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071177

    Briggs & Stratton

    MPN: PES-PA-ELC-1870

    $7,159.46 USD
    $7,159.46 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 400 amp Transfer Switch, 480V, NEMA 3R - 071115 | Portlandia Electric Supply

    Briggs and Stratton 400 amp Transfer Switch, 480V, NEMA 3R - 071115

    Briggs & Stratton

    MPN: PES-PA-ELC-1862

    $5,973.20 USD
    $5,973.20 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071113 | Portlandia Electric Supply

    Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071113

    Briggs & Stratton

    MPN: PES-PA-ELC-1861

    $4,218.00 USD
    $4,218.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 800 amp Transfer Switch, 240V, NEMA 3R - 071133 | Portlandia Electric Supply

    Briggs and Stratton 800 amp Transfer Switch, 240V, NEMA 3R - 071133

    Briggs & Stratton

    MPN: PES-PA-ELC-1853

    $17,210.00 USD
    $17,210.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 600 amp Transfer Switch, 240V, NEMA 3R - 071140 | Portlandia Electric Supply

    Briggs and Stratton 600 amp Transfer Switch, 240V, NEMA 3R - 071140

    Briggs & Stratton

    MPN: PES-PA-ELC-1852

    $14,367.00 USD
    $14,367.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071139 | Portlandia Electric Supply

    Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071139

    Briggs & Stratton

    MPN: PES-PA-ELC-1851

    $10,285.00 USD
    $10,285.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 800 amp Transfer Switch, 240V, NEMA 3R - 071188 | Portlandia Electric Supply

    Briggs and Stratton 800 amp Transfer Switch, 240V, NEMA 3R - 071188

    Briggs & Stratton

    MPN: PES-PA-ELC-1849

    $9,367.00 USD
    $9,367.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 600 amp Transfer Switch, 240V, NEMA 3R - 071183 | Portlandia Electric Supply

    Briggs and Stratton 600 amp Transfer Switch, 240V, NEMA 3R - 071183

    Briggs & Stratton

    MPN: PES-PA-ELC-1848

    $6,976.00 USD
    $6,976.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071175 | Portlandia Electric Supply

    Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071175

    Briggs & Stratton

    MPN: PES-PA-ELC-1847

    $4,447.00 USD
    $4,447.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Briggs & Stratton Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071111 | Portlandia Electric Supply

    Briggs and Stratton 400 amp Transfer Switch, 240V, NEMA 3R - 071111

    Briggs & Stratton

    MPN: PES-PA-ELC-1845

    $3,943.00 USD
    $3,943.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac KIT, PHASE SENSE, 240-480 V, PZ410 Generac 7412

    Generac KIT, PHASE SENSE, 240-480 V, PZ410

    Generac

    MPN: PES-PA-ELC-1790

    $54.99 USD
    $54.99 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac KIT, PHASE SENSE, 120-240 V, PZ410 Generac 7411

    Generac KIT, PHASE SENSE, 120-240 V, PZ410

    Generac

    MPN: PES-PA-ELC-1789

    $55.99 USD
    $55.99 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac 200 Amp Builder Meter Main 120/240 1Ø NEMA 3R (ATS upgradable) Generac 200 Amp

    Generac 200 Amp Builder Meter Main 120/240 1Ø NEMA 3R (ATS upgradable)

    Generac

    MPN: PES-PA-ELC-1779

    $546.00 USD
    $546.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac 150 Amp Builder Meter Main 120/240 1Ø NEMA 3R (ATS upgradable) - RBU150A3 150 Amp Builder Meter

    Generac 150 Amp Builder Meter Main 120/240 1Ø NEMA 3R (ATS upgradable) - RBU150A3

    Sale
    Generac

    MPN: PES-PA-ELC-1778

    $529.00 USD
    $539.00 USD $529.00 USD
    −2%
    Available to order
    Expected ship Oct 19 – Nov 02
    SaleIn Stock
  • Generac 200 Amp Combo Switch + Meter Socket Service Rated 120/240 1Ø NEMA 3R - RXUW200A3-01 Generac RXUW200A3-01

    Generac 200 Amp Combo Switch + Meter Socket Service Rated 120/240 1Ø NEMA 3R - RXUW200A3-01

    Sale
    Generac

    MPN: PES-PA-ELC-1777

    $1,259.00 USD
    $1,279.00 USD $1,259.00 USD
    −2%
    Available to order
    Expected ship Oct 19 – Nov 02
    SaleIn Stock
  • Generac 200 Amp Combo Switch + Meter Socket Service Rated 120/240 1Ø NEMA 3R - RXUW200A3 Generac 200 Amp Combo Switch + Meter Socket Service Rated 120/240 1Ø NEMA 3R - RXUW200A3 | Portlandia Electric Supply

    Generac 200 Amp Combo Switch + Meter Socket Service Rated 120/240 1Ø NEMA 3R - RXUW200A3

    Sale
    Generac

    MPN: PES-PA-ELC-1776

    $1,259.00 USD
    $1,279.00 USD $1,259.00 USD
    −2%
    Available to order
    Expected ship Oct 19 – Nov 02
    SaleIn Stock
  • Generac 150 Amp Combo Switch + Meter Socket Service Rated 120/240 1Ø NEMA 3R - RXUW150A3 Generac 150 Amp Combo Switch

    Generac 150 Amp Combo Switch + Meter Socket Service Rated 120/240 1Ø NEMA 3R - RXUW150A3

    Sale
    Generac

    MPN: PES-PA-ELC-1775

    $1,249.00 USD
    $1,269.00 USD $1,249.00 USD
    −2%
    Available to order
    Expected ship Oct 19 – Nov 02
    SaleIn Stock
  • Generac 200 Amp Combo Switch + Meter Socket + 40 Circuit ILC Service Rated 120/240 1Ø NEMA 3R - RXGUW200A3 Generac ILC | Portlandia Electric Supply

    Generac 200 Amp Combo Switch + Meter Socket + 40 Circuit ILC Service Rated 120/240 1Ø NEMA 3R - RXGUW200A3

    Sale
    Generac

    MPN: PES-PA-ELC-1774

    $2,079.00 USD
    $2,119.00 USD $2,079.00 USD
    −2%
    Available to order
    Expected ship Oct 19 – Nov 02
    SaleIn Stock
  • Generac Smart Switch 200 Amp Service Rated 120/240 1Ø NEMA 3R CUL Approved - RXSW200A3CUL Generac Smart Switch

    Generac Smart Switch 200 Amp Service Rated 120/240 1Ø NEMA 3R CUL Approved - RXSW200A3CUL

    Sale
    Generac

    MPN: PES-PA-ELC-1773

    $969.00 USD
    $989.00 USD $969.00 USD
    −2%
    Available to order
    Expected ship Oct 19 – Nov 02
    SaleIn Stock
  • Generac Smart Switch 100 Amp Service Rated 120/240 1Ø NEMA 3R CUL Approved Generac Smart Switch 100 Amp

    Generac Smart Switch 100 Amp Service Rated 120/240 1Ø NEMA 3R CUL Approved

    Generac

    MPN: PES-PA-ELC-1772

    $696.00 USD
    $696.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac 400 Amp 120/208 3Ø NEMA 3R - HTSN400G3 Generac HTSN400G3

    Generac 400 Amp 120/208 3Ø NEMA 3R - HTSN400G3

    Generac

    MPN: PES-PA-ELC-1771

    $2,284.42 USD
    $2,284.42 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac 300 Amp 120/208 3Ø NEMA 3R - HTSN300G3 Generac HTSN300G3

    Generac 300 Amp 120/208 3Ø NEMA 3R - HTSN300G3

    Generac

    MPN: PES-PA-ELC-1770

    $3,102.78 USD
    $3,102.78 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac TR SW 200A 220/415 3P 3R 50HZ Generac TR SW 200A 220/415 3P 3R 50HZ | Portlandia Electric Supply

    Generac TR SW 200A 220/415 3P 3R 50HZ

    Generac

    MPN: PES-PA-ELC-1769

    $1,784.53 USD
    $1,784.53 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac 100 Amp 220/415 3Ø NEMA 3R 50Hz Generac 100 Amp transfer switch

    Generac 100 Amp 220/415 3Ø NEMA 3R 50Hz

    Generac

    MPN: PES-PA-ELC-1768

    $1,154.54 USD
    $1,154.54 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac 100 Amp 120/230 1Ø NEMA 3R 50Hz — front view

    Generac 100 Amp 120/230 1Ø NEMA 3R 50Hz

    Generac

    MPN: PES-PA-ELC-1766

    $972.06 USD
    $972.06 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac 100 Amp 277/480 3Ø NEMA 3R CUL — front view

    Generac 100 Amp 277/480 3Ø NEMA 3R CUL

    Generac

    MPN: PES-PA-ELC-1765

    $1,109.00 USD
    $1,109.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac TRANS SW 100A 120/240 3P NEMA3 - RTSN100J3 Generac TRANS SW 100A

    Generac TRANS SW 100A 120/240 3P NEMA3 - RTSN100J3

    Sale
    Generac

    MPN: PES-PA-ELC-1764

    $909.00 USD
    $919.00 USD $909.00 USD
    −1%
    Available to order
    Expected ship Oct 19 – Nov 02
    SaleIn Stock
  • Generac TRANS SW 100A 120/208 3P NEMA3 Generac transfer switch

    Generac TRANS SW 100A 120/208 3P NEMA3

    Generac

    MPN: PES-PA-ELC-1763

    $909.00 USD
    $909.00 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac XFER SW 100A 1PH 3R NSE - RXSC100A3 Generac XFER

    Generac XFER SW 100A 1PH 3R NSE - RXSC100A3

    Sale
    Generac

    MPN: PES-PA-ELC-1762

    $539.00 USD
    $549.00 USD $539.00 USD
    −2%
    Available to order
    Expected ship Oct 19 – Nov 02
    SaleIn Stock
  • Generac 100 Amp PWRcell 120/240 1Ø NEMA 3R CES01 — front view

    Generac 100 Amp PWRcell 120/240 1Ø NEMA 3R CES01

    Generac

    MPN: PES-PA-ELC-1761

    $547.90 USD
    $547.90 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock
  • Generac 200 Amp PWRcell Service Rated 120/240 1Ø NEMA 3R CES01 - CXSW200A301 Generac 200 Amp PWRcell Service Rated 120/240 1Ø NEMA 3R CES01 - CXSW200A301 | Portlandia Electric Supply

    Generac 200 Amp PWRcell Service Rated 120/240 1Ø NEMA 3R CES01 - CXSW200A301

    Generac

    MPN: PES-PA-ELC-1760

    $927.14 USD
    $927.14 USD
    Available to order
    Expected ship Oct 19 – Nov 02
    In Stock

About Automatic Transfer Switches & Generator Accessories

Automatic transfer switches, manual transfer switches, remote monitoring modules, cold weather kits, wireless-monitoring kits, extended run tanks, and other standby generator accessories. Matched sizing from 100A to 1000A for residential, commercial, and industrial standby systems.

Match the ATS to the service size. 100A and 200A cover most homes; 400A and above for light commercial. Contractors can run compatibility on the Compatibility Checker and register for trade pricing at axis.pesdistribution.com/portal-registration.