Shop 400 amp service upgrade

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$5,030.00
Milbank U6227-X-400-K3L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$5,030.00
Milbank U6227-X-400-K3L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$5,465.00
Milbank U6228-X-400-K3L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$5,465.00
Milbank U6228-X-400-K3L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$7,010.00
Milbank M401-Ug 400A Underground Ring Type 4-Term 400A Circuit Breaker
New Feedonomics Feed - ARC 8/12/2025
$7,010.00
Milbank M401-Ug 400A Underground Ring Type 4-Term 400A Circuit Breaker
New Feedonomics Feed - ARC 8/12/2025
$5,900.00
Milbank U6229-X-400-K7L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$5,900.00
Milbank U6229-X-400-K7L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$119.00
High Amp Alternator Wiring Big 3 Upgrade Kit | 400 Amps | Universal Fitment
Dale's Super Store
Free shipping
$119.00
High Amp Alternator Wiring Big 3 Upgrade Kit | 400 Amps | Universal Fitment
Dale's Super Store
$3,019.00
Generac RTSW400A3 400 Amp Service Entrance Rated Single Phase Automatic Transfer Switch New RTSW400A3
FactoryPure
64
$3,019.00
Generac RTSW400A3 400 Amp Service Entrance Rated Single Phase Automatic Transfer Switch New RTSW400A3
FactoryPure
$3,159.00
Generac RTSW400A3 400 Amp Single Phase Generator Automatic Transfer Switch - Service Entrance Rated - NEMA 3R Outdoor Rated Aluminum Enclosure - Power
Amazon.com
3
Free shipping
$3,159.00
Generac RTSW400A3 400 Amp Single Phase Generator Automatic Transfer Switch - Service Entrance Rated - NEMA 3R Outdoor Rated Aluminum Enclosure - Power
Amazon.com
$25,278.10
400A Power Distribution Main Breaker Panelboard - 480V, 3-Phase - (4) MCCB Breakers, (3) Terminal Lu
Larson Electronics
$25,278.10
400A Power Distribution Main Breaker Panelboard - 480V, 3-Phase - (4) MCCB Breakers, (3) Terminal Lu
Larson Electronics
$20,586.50
400A Switchboard W/ 400A Main Circuit Breaker - 480V 3PH, 3W, 60Hz - NEMA 3R
Larson Electronics
$20,586.50
400A Switchboard W/ 400A Main Circuit Breaker - 480V 3PH, 3W, 60Hz - NEMA 3R
Larson Electronics
$2,880.00
Custom Built 400 Amp Panelboard 480V 277V Main Breaker 3 Phase NEMA 1 Panel
BuyMyBreaker.com
$2,880.00
Custom Built 400 Amp Panelboard 480V 277V Main Breaker 3 Phase NEMA 1 Panel
BuyMyBreaker.com
$4,851.00
GE AEF3304MBX 400A 480Y/277 Breaker Panel Board 3PH 4W 400 Amp MLO 480V 3R (DW5865-1)
River City Industrial
$4,851.00
GE AEF3304MBX 400A 480Y/277 Breaker Panel Board 3PH 4W 400 Amp MLO 480V 3R (DW5865-1)
River City Industrial
$7,341.95
Power Distribution Panel - 208Y/120V 3PH - 400A MCB - (3) 3P 208V Breakers - N3R
Larson Electronics
$7,341.95
Power Distribution Panel - 208Y/120V 3PH - 400A MCB - (3) 3P 208V Breakers - N3R
Larson Electronics
$5,400.00
400 Amp Panelboard 480V Main Breaker 42 Space 3Phase 4 Wire ,Complete
eBay
Free shipping
$5,400.00
400 Amp Panelboard 480V Main Breaker 42 Space 3Phase 4 Wire ,Complete
eBay
$3,060.00
Custom Built 400 Amp Panelboard 480V 277V Main Breaker 3 Phase NEMA 3R Panel
BuyMyBreaker.com
$3,060.00
Custom Built 400 Amp Panelboard 480V 277V Main Breaker 3 Phase NEMA 3R Panel
BuyMyBreaker.com
$3,950.00
NEW GE 400A Main Breaker Panel Board 208Y/120 A Series II 3P4W 400 Amp TJD432400
US eBay
Free shipping
$3,950.00
NEW GE 400A Main Breaker Panel Board 208Y/120 A Series II 3P4W 400 Amp TJD432400
US eBay
$2,340.00
Custom Built 400 Amp Panelboard 240V 120V Main Lug Only MLO 3 Phase NEMA 3R Panel
BuyMyBreaker.com
$2,340.00
Custom Built 400 Amp Panelboard 240V 120V Main Lug Only MLO 3 Phase NEMA 3R Panel
BuyMyBreaker.com
$935.75
Square D Panelboard Main Breaker Kit: 400 Amps, For Use With Square D L-Frame Panelboards Model: n400m
Grainger
$935.75
Square D Panelboard Main Breaker Kit: 400 Amps, For Use With Square D L-Frame Panelboards Model: n400m
Grainger
$975.10
GE TJH4SS 400A Hi-Break Circuit Breaker W/ 400 Amp Plug 3P General Electric (EM0576-1)
River City Industrial
$975.10
GE TJH4SS 400A Hi-Break Circuit Breaker W/ 400 Amp Plug 3P General Electric (EM0576-1)
River City Industrial
$4,495.00
Siemens WBV3400C 400A 3Ph Main Disconnect Breaker Power Mod Service Entry Module
US eBay
Free shipping
$4,495.00
Siemens WBV3400C 400A 3Ph Main Disconnect Breaker Power Mod Service Entry Module
US eBay
$3,499.99
NEW SIEMENS 400 AMP MAIN BREAKER PANELBOARD INTERIOR 300A MAIN 208Y/120V
US eBay
Free shipping
$3,499.99
NEW SIEMENS 400 AMP MAIN BREAKER PANELBOARD INTERIOR 300A MAIN 208Y/120V
US eBay
$2,939.84
400A Electrical Meter Main Distribution Unit - 120/240V 1PH, 2P3W, Main Lug Input Connection, Alumin
Larson Electronics
$2,939.84
400A Electrical Meter Main Distribution Unit - 120/240V 1PH, 2P3W, Main Lug Input Connection, Alumin
Larson Electronics
$999.00
Square D NF400FTL 400 Amp Panelboard Feed-Through Lug Kit
eBay
Free shipping
$999.00
Square D NF400FTL 400 Amp Panelboard Feed-Through Lug Kit
eBay
$3,399.99
NEW EATON PRL1A 400 AMP MAIN BREAKER PANEL 30 CIRCUIT 208Y/120V 3Ø 4W HKD3400W
US eBay
Free shipping
$3,399.99
NEW EATON PRL1A 400 AMP MAIN BREAKER PANEL 30 CIRCUIT 208Y/120V 3Ø 4W HKD3400W
US eBay
$6,933.10
400 Amp Nf Main Breaker Panel SQUARE D 480Y/277 400 Amp 42 Space New W Breakers
US eBay
16
Free shipping
$6,933.10
400 Amp Nf Main Breaker Panel SQUARE D 480Y/277 400 Amp 42 Space New W Breakers
US eBay
$940.33
Square D Panelboard Main Breaker Kit: 400 Amps, For Use With Square D NQ Panelboards Model: NQMB4LA
Grainger
$940.33
Square D Panelboard Main Breaker Kit: 400 Amps, For Use With Square D NQ Panelboards Model: NQMB4LA
Grainger
$8,950.00
NEW Square D 400A HCP Main Breaker I-Line Panel Board 3PH 4W 208Y/120 400 Amp
US eBay
1
Free shipping
$8,950.00
NEW Square D 400A HCP Main Breaker I-Line Panel Board 3PH 4W 208Y/120 400 Amp
US eBay
$3,999.99
Siemens 400 Amp 208Y/120V Main Breaker Panel W/Breakers 3Ph
eBay
$3,999.99
Siemens 400 Amp 208Y/120V Main Breaker Panel W/Breakers 3Ph
eBay
$1,540.00
Siemens Industry Inc. Orig P1 400A 3Ph Al/Cu Main/Ft Lug Kit P1 400A 3 Phase Mlo Kit Al
Walker Industrial
$1,540.00
Siemens Industry Inc. Orig P1 400A 3Ph Al/Cu Main/Ft Lug Kit P1 400A 3 Phase Mlo Kit Al
Walker Industrial
$4,999.99
NEW SQUARE D 400 AMP MAIN LUG PANELBOARD 240 VAC 3 PHASE 84 CIRCUIT NQ484L4C
US eBay
Free shipping
$4,999.99
NEW SQUARE D 400 AMP MAIN LUG PANELBOARD 240 VAC 3 PHASE 84 CIRCUIT NQ484L4C
US eBay
$12,151.25
Power Distribution Panel - 240V AC, 1-Phase - 400A MB Panel - (33) Breakers - Left Side Hinged Door
Larson Electronics
$12,151.25
Power Distribution Panel - 240V AC, 1-Phase - 400A MB Panel - (33) Breakers - Left Side Hinged Door
Larson Electronics
$1,270.75
Square D SU3040D400FN Underground Combo Service 400A 30-Sp 3W MB N3R Ring-Type
US eBay
Free shipping
$1,270.75
Square D SU3040D400FN Underground Combo Service 400A 30-Sp 3W MB N3R Ring-Type
US eBay
$3,100.00
Brand New/Never Used Kohler Rxt Series 400-Amp Outdoor Ats (Service
eBay
Free shipping
$3,100.00
Brand New/Never Used Kohler Rxt Series 400-Amp Outdoor Ats (Service
eBay
$2,600.00
Square D 400A, 208Y/120V, 3PH, 4W Main Breaker NQ Panelboard With 400A Breaker
US eBay
Free shipping
$2,600.00
Square D 400A, 208Y/120V, 3PH, 4W Main Breaker NQ Panelboard With 400A Breaker
US eBay
$1,979.99
EATON PRL2A 400 AMP MAIN BREAKER PANELBOARD 42 CIRC 480Y/277 VAC 3Ø KD3400F MAIN
US eBay
Free shipping
$1,979.99
EATON PRL2A 400 AMP MAIN BREAKER PANELBOARD 42 CIRC 480Y/277 VAC 3Ø KD3400F MAIN
US eBay
$1,795.00
400 / 320 Amp Meter Base / Socket EATON 324N W/2 200A Main Breakers/Disconnects
US eBay
Free shipping
$1,795.00
400 / 320 Amp Meter Base / Socket EATON 324N W/2 200A Main Breakers/Disconnects
US eBay
$2,159.99
New Square D EZM1400CBU EZ Meter Pack Main Circuit Breaker 400 Amp 120/240V 1 Ph
US eBay
Free shipping
$2,159.99
New Square D EZM1400CBU EZ Meter Pack Main Circuit Breaker 400 Amp 120/240V 1 Ph
US eBay
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Shop 400 amp service upgrade

Sponsored
About our ads
$5,030.00
Milbank U6227-X-400-K3L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$5,030.00
Milbank U6227-X-400-K3L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$5,465.00
Milbank U6228-X-400-K3L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$5,465.00
Milbank U6228-X-400-K3L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$7,010.00
Milbank M401-Ug 400A Underground Ring Type 4-Term 400A Circuit Breaker
New Feedonomics Feed - ARC 8/12/2025
$7,010.00
Milbank M401-Ug 400A Underground Ring Type 4-Term 400A Circuit Breaker
New Feedonomics Feed - ARC 8/12/2025
$5,900.00
Milbank U6229-X-400-K7L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$5,900.00
Milbank U6229-X-400-K7L 400A Meter Main
New Feedonomics Feed - ARC 8/12/2025
$119.00
High Amp Alternator Wiring Big 3 Upgrade Kit | 400 Amps | Universal Fitment
Dale's Super Store
Free shipping
$119.00
High Amp Alternator Wiring Big 3 Upgrade Kit | 400 Amps | Universal Fitment
Dale's Super Store
$3,019.00
Generac RTSW400A3 400 Amp Service Entrance Rated Single Phase Automatic Transfer Switch New RTSW400A3
FactoryPure
64
$3,019.00
Generac RTSW400A3 400 Amp Service Entrance Rated Single Phase Automatic Transfer Switch New RTSW400A3
FactoryPure
$3,159.00
Generac RTSW400A3 400 Amp Single Phase Generator Automatic Transfer Switch - Service Entrance Rated - NEMA 3R Outdoor Rated Aluminum Enclosure - Power
Amazon.com
3
Free shipping
$3,159.00
Generac RTSW400A3 400 Amp Single Phase Generator Automatic Transfer Switch - Service Entrance Rated - NEMA 3R Outdoor Rated Aluminum Enclosure - Power
Amazon.com
$25,278.10
400A Power Distribution Main Breaker Panelboard - 480V, 3-Phase - (4) MCCB Breakers, (3) Terminal Lu
Larson Electronics
$25,278.10
400A Power Distribution Main Breaker Panelboard - 480V, 3-Phase - (4) MCCB Breakers, (3) Terminal Lu
Larson Electronics
$20,586.50
400A Switchboard W/ 400A Main Circuit Breaker - 480V 3PH, 3W, 60Hz - NEMA 3R
Larson Electronics
$20,586.50
400A Switchboard W/ 400A Main Circuit Breaker - 480V 3PH, 3W, 60Hz - NEMA 3R
Larson Electronics
$2,880.00
Custom Built 400 Amp Panelboard 480V 277V Main Breaker 3 Phase NEMA 1 Panel
BuyMyBreaker.com
$2,880.00
Custom Built 400 Amp Panelboard 480V 277V Main Breaker 3 Phase NEMA 1 Panel
BuyMyBreaker.com
$4,851.00
GE AEF3304MBX 400A 480Y/277 Breaker Panel Board 3PH 4W 400 Amp MLO 480V 3R (DW5865-1)
River City Industrial
$4,851.00
GE AEF3304MBX 400A 480Y/277 Breaker Panel Board 3PH 4W 400 Amp MLO 480V 3R (DW5865-1)
River City Industrial
$7,341.95
Power Distribution Panel - 208Y/120V 3PH - 400A MCB - (3) 3P 208V Breakers - N3R
Larson Electronics
$7,341.95
Power Distribution Panel - 208Y/120V 3PH - 400A MCB - (3) 3P 208V Breakers - N3R
Larson Electronics
$5,400.00
400 Amp Panelboard 480V Main Breaker 42 Space 3Phase 4 Wire ,Complete
eBay
Free shipping
$5,400.00
400 Amp Panelboard 480V Main Breaker 42 Space 3Phase 4 Wire ,Complete
eBay
$3,060.00
Custom Built 400 Amp Panelboard 480V 277V Main Breaker 3 Phase NEMA 3R Panel
BuyMyBreaker.com
$3,060.00
Custom Built 400 Amp Panelboard 480V 277V Main Breaker 3 Phase NEMA 3R Panel
BuyMyBreaker.com
$3,950.00
NEW GE 400A Main Breaker Panel Board 208Y/120 A Series II 3P4W 400 Amp TJD432400
US eBay
Free shipping
$3,950.00
NEW GE 400A Main Breaker Panel Board 208Y/120 A Series II 3P4W 400 Amp TJD432400
US eBay
$2,340.00
Custom Built 400 Amp Panelboard 240V 120V Main Lug Only MLO 3 Phase NEMA 3R Panel
BuyMyBreaker.com
$2,340.00
Custom Built 400 Amp Panelboard 240V 120V Main Lug Only MLO 3 Phase NEMA 3R Panel
BuyMyBreaker.com
$935.75
Square D Panelboard Main Breaker Kit: 400 Amps, For Use With Square D L-Frame Panelboards Model: n400m
Grainger
$935.75
Square D Panelboard Main Breaker Kit: 400 Amps, For Use With Square D L-Frame Panelboards Model: n400m
Grainger
$975.10
GE TJH4SS 400A Hi-Break Circuit Breaker W/ 400 Amp Plug 3P General Electric (EM0576-1)
River City Industrial
$975.10
GE TJH4SS 400A Hi-Break Circuit Breaker W/ 400 Amp Plug 3P General Electric (EM0576-1)
River City Industrial