{"title":"400 Amp Circuit Breakers","description":"\u003ch2\u003e400 Amp Circuit Breakers\u003c\/h2\u003e\u003cp\u003eShop 400 amp circuit breakers across leading brands and series. Filter 400A breakers by poles, voltage, series, mounting style, phase, special classification, trip technology, and family.\u003c\/p\u003e\u003cp\u003eMatch amperage, voltage, pole count, series, and mounting style to your equipment before ordering. Need help identifying a replacement? \u003ca href=\"\/pages\/get-a-quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"siemens-cjd63b400-3-pole-circuit-breaker","title":"Siemens CJD63B400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Built for heavy-duty commercial power distribution, this 400A thermal-magnetic breaker provides essential long-time and instantaneous fault protection. The Sentron JD-frame construction ensures durability in rigorous industrial applications. This unit-mount MCCB fastens securely into Siemens P4 and P5 panelboards or standalone enclosures. It requires TA2J6500 lug kits for proper wire termination. Rated for 150kA at 480VAC, the current-limiting design restricts let-through energy during faults.","brand":"Siemens","offers":[{"title":"New","offer_id":51149428654393,"sku":"CJD63B400","price":4407.97,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":51688148238649,"sku":"CJD63B400-R","price":3009.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/CJD63B400_469fc595-bb31-4d3d-afd3-b0643df763c9.jpg?v=1686678774"},{"product_id":"cutler-hammer-da3400-r-40-amp","title":"Eaton \/ Cutler-Hammer DA3400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Operating as a high-capacity protective device, the Eaton DA3400 delivers 400A of thermal-magnetic protection for demanding industrial environments. This 3-pole legacy AB De-Ion breaker features a non-interchangeable trip unit and supports reverse feed applications. It mounts securely into vintage Westinghouse CDP panelboards, FDP switchboards, and Eaton enclosures. Facilities looking to modernize often cross-reference this unit to the newer DK3400 replacement.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354343727417,"sku":"DA3400-R","price":684.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/DA3400-R_ff65c53f-e2a1-4c10-8df5-32b00bc7f665.jpg?v=1686680158"},{"product_id":"square-d-djm32400e20-3-pole-circuit-breaker","title":"Eaton \/ Moeller DJM32400E20 - 400A 3 Pole Molded Case Circuit Breaker","description":"Built for commercial metering applications, the Square D DJM32400E20 is a 3-pole, 400A electronic trip circuit breaker. It delivers precise, current-limiting protection using advanced microprocessor sensing. This breaker is engineered to mount into Square D EZ Meter-Pak (EZML and EZMK) metering centers. While this legacy DJ frame is now replaced by the PowerPact LJM36400U31X, it remains essential for maintaining existing setups. It features a 100kAIC rating at 240V and adjustable trip functions.","brand":"Eaton \/ Moeller","offers":[{"title":"New","offer_id":45354345595193,"sku":"DJM32400E20","price":1001.51,"currency_code":"USD","in_stock":false},{"title":"Re-Certified","offer_id":45354345627961,"sku":"DJM32400E20-R","price":1275.0,"currency_code":"USD","in_stock":true}]},{"product_id":"cutler-hammer-hmcp400r5c-400-amp","title":"Eaton \/ Cutler-Hammer HMCP400R5C - 400A 3 Pole Motor Circuit Protector","description":"Part of Eaton's reliable Series C family, the HMCP400R5C provides specialized instantaneous protection for motor branch circuits. This 3-pole, 400A K-Frame unit comes equipped with factory-installed copper line and load lugs for superior conductivity in demanding industrial environments. Featuring an adjustable magnetic trip range from 1750A to 3500A, it allows precise coordination with NEMA Size 5 motor starters to prevent nuisance tripping during heavy motor startup sequences.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"New","offer_id":45354602398009,"sku":"HMCP400R5C","price":2592.6,"currency_code":"USD","in_stock":true}]},{"product_id":"square-d-il34400-r-lug-terminal-kit","title":"Square D IL34400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Utilizing advanced I-Limiter technology, this 400A molded case circuit breaker delivers top-tier 200kAIC protection at 480V without requiring external fuses. The current-limiting capability significantly reduces let-through energy, preserving the integrity of your electrical infrastructure. It features a specialized mounting bracket for quick integration into Square D I-Line switchboards. Facilities upgrading their systems often transition from this model to the newer LIL36400 equivalent.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354616029497,"sku":"IL34400-R","price":1472.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/IL34400-R_099c5060-b284-4925-96ee-5b7be2f219fa.jpg?v=1686689771"},{"product_id":"siemens-jl3b400-r-400-amp","title":"Siemens JL3B400 - 400A 3 Pole Molded Case Circuit Breaker","description":"A reliable solution for commercial facilities, the Siemens JL3B400 is a 400-amp, 3-pole molded case circuit breaker. It utilizes thermal-magnetic technology to deliver long-time and instantaneous protection. Designed for bolt-on installation, this breaker is compatible with Siemens P4 and P5 panelboards, motor control centers, and older ITE FC-1 enclosures. For modern upgrades, this legacy J-Frame model is replaced by the JD63B400.","brand":"Siemens","offers":[{"title":"Re-Certified","offer_id":45354633429305,"sku":"JL3B400-R","price":760.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/JL3B400-R_2e1b4f60-10a9-4a75-9fe4-c563ac58313d.jpg?v=1686690553"},{"product_id":"eaton-cutler-hammer-kdb3400-3-pole-circuit-breaker","title":"Eaton \/ Cutler-Hammer KDB3400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Designed for commercial and industrial applications, the KDB3400 is a 3-pole, 400A molded case circuit breaker from Eaton's Series C family. It provides robust overcurrent and short-circuit protection for heavy-duty electrical systems. This K-Frame device installs into compatible Eaton panelboards, switchboards, and motor control centers. It features a standard panel mount configuration and includes line and load lugs for straightforward wire termination.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"New","offer_id":51149424001337,"sku":"KDB3400","price":2071.99,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":51206161629497,"sku":"KDB3400-R","price":1281.68,"currency_code":"USD","in_stock":true}]},{"product_id":"eaton-cutler-hammer-kdc3400-3-pole-circuit-breaker","title":"Eaton \/ Cutler-Hammer KDC3400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Engineered for heavy-duty industrial power systems, the KDC3400 is a 3-pole, 400A molded case circuit breaker. It provides essential thermal-magnetic protection to safeguard commercial facilities and manufacturing plants. This Series C breaker integrates seamlessly into Eaton panelboards, switchboards, and motor control centers. The K-Frame design utilizes standard lug terminals to accept dual 3\/0 AWG to 250 kcmil conductors. With a 100kAIC rating at 480V, it offers superior performance.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"New","offer_id":51149425606969,"sku":"KDC3400","price":2768.99,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":51206165168441,"sku":"KDC3400-R","price":1959.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/files\/HKD3000-3-Pole-Circuit-Breaker-Eaton-1_7bdef66a-9588-4692-92d9-8e628a93abfd.jpg?v=1769623035"},{"product_id":"cutler-hammer-l3400-r-400-amp","title":"Eaton \/ Cutler-Hammer L3400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Operating as a critical safety device, the Eaton L3400 is a 3-pole, 400A legacy circuit breaker. It safeguards heavy industrial loads against damaging short circuits. This breaker mounts securely into vintage Cutler-Hammer and Westinghouse panelboards. Professionals should note this PB Frame unit is replaced by the newer LD3400 model. The device utilizes a reliable thermal-magnetic trip mechanism with adjustable magnetic capabilities. It provides a 35 kAIC interrupting capacity at 480VAC.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354743300409,"sku":"L3400-R","price":835.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/L3400-R.jpg?v=1686693450"},{"product_id":"westinghouse-la3400-r-400-amp","title":"Eaton \/ Cutler-Hammer LA3400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Engineered for legacy distribution systems, the Eaton LA3400 delivers 400 amps of thermal-magnetic protection in a three-pole configuration. This L-Frame breaker maintains older infrastructure without requiring a complete overhaul. It installs into classic Cutler-Hammer, Westinghouse, and Eaton motor control centers or panelboards. For modern upgrades, this model crosses over to the Series C LD3400.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354750214457,"sku":"LA3400-R","price":850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/la3400-r.jpg?v=1686693722"},{"product_id":"westinghouse-la3400pr-r-400-amp","title":"Eaton \/ Cutler-Hammer LA3400PR - 400A 3 Pole Molded Case Circuit Breaker","description":"Built for heavy-duty commercial applications, this 400A, 3-pole current-limiting MCCB utilizes a Tri-Pac fused design. It provides reliable thermal-magnetic protection with an adjustable magnetic trip. Designed for bolt-on installation, this breaker fits into legacy Westinghouse and Eaton switchboards and motor control centers. When upgrading, the LCL3400 serves as the modern replacement. With a 200 kAIC rating at 600VAC, it effectively restricts let-through current during severe faults.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354751983929,"sku":"LA3400PR-R","price":1595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/LA3400PR-R_6d85eb98-0674-4319-92e9-4a173b94c300.jpg?v=1686693748"},{"product_id":"westinghouse-lb3400-r-400-amp","title":"Eaton \/ Cutler-Hammer LB3400 - 400A 3 Pole Molded Case Circuit Breaker","description":"A drop-in replacement for aging infrastructure, the Eaton LB3400 is a 3-pole, 400A molded case circuit breaker equipped with an interchangeable thermal-magnetic trip unit. The bolt-on design ensures a secure connection within Pow-R-Line 4 panels, Pow-R-Line C switchboards, and legacy Westinghouse CDP panelboards. Facilities looking to upgrade can substitute this unit with the Series G LGE3400FAW. Offering a solid 42kAIC rating at 240VAC, it provides excellent fault current interruption.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354766270777,"sku":"LB3400-R","price":791.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/lb3400_1905e2bd-3a35-41f8-9189-81388628b9d6.jpg?v=1686694171"},{"product_id":"cutler-hammer-lclg3400f-r-400-amp","title":"Eaton \/ Cutler-Hammer LCLG3400F - 400A 3 Pole Molded Case Circuit Breaker","description":"Built for heavy-duty commercial power distribution, this 400A electronic trip breaker offers highly configurable protection parameters. It installs into Eaton Series C panelboards or motor control centers, though users must source the required rating plug and lug kits separately. The integrated LSG functions allow facility managers to fine-tune long-time, short-time, and ground fault settings, maximizing coordination across complex 3-phase electrical systems.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354787176761,"sku":"LCLG3400F-R","price":1612.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/LCLG3400F-R_7975cf7f-8572-4bb3-a74e-016759b190b2.jpg?v=1686695087"},{"product_id":"square-d-le36400ls-3-pole-circuit-breaker","title":"Square D LE36400LS - 400A 3 Pole Molded Case Circuit Breaker","description":"Engineered for industrial applications, the LE36400LS is a 400A, 3-pole MCCB from the legacy L-Frame series. It features a Micrologic electronic trip unit for adjustable long-time and short-time (LS) protection. It mounts into Square D I-Line panelboards. For modern upgrades, it is replaced by the PowerPact LLA36400U33X (requires HNM1BL filler). Rated 65kAIC at 480V, it delivers high-interrupting capacity and true RMS sensing for accurate response.","brand":"Square D","offers":[{"title":"New","offer_id":45354788061497,"sku":"LE36400LS","price":5890.94,"currency_code":"USD","in_stock":false},{"title":"Re-Certified","offer_id":45354788094265,"sku":"LE36400LS-R","price":2467.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/le36400ls-r_109dcfb0-8f6b-4e14-8ed0-e0849c2c5cb1.jpg?v=1686695158"},{"product_id":"square-d-lhp36400mb-400-amp","title":"Square D LHP36400MB - 400A 3 Pole Molded Case Circuit Breaker","description":"Built for commercial and industrial power distribution, the Square D LHP36400MB is a 3-pole, 400A molded case circuit breaker. It delivers robust performance with a 35kAIC rating at 480VAC. Designed as a unit-mount breaker, it integrates easily into Square D switchboards, enclosures, and motor control centers. This legacy L-Frame model is ideal for maintaining existing infrastructure and is officially replaced by the LGL36400U31X. It includes fixed thermal-magnetic trip functions (LI).","brand":"Square D","offers":[{"title":"New","offer_id":45354790486329,"sku":"LHP36400MB","price":4060.0,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":51711180144953,"sku":"LHP36400MB-R","price":1895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/lhp36400mb_fe3c08b8-28f8-43b5-911f-fbd709713fc0.jpg?v=1686695208"},{"product_id":"square-d-lx36400-3-pole-circuit-breaker","title":"Square D LX36400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Rated for 400 amps, this legacy L-Frame circuit breaker utilizes a Micrologic trip unit to provide highly accurate True RMS sensing. It easily installs into Square D I-Line switchboards, making it ideal for industrial facilities requiring 65kAIC at 480V. When replacing this discontinued model, facilities should use the PowerPact LJA36400U43X along with an HNM1BL filler plate to accommodate the dimensional differences in the enclosure.","brand":"Square D","offers":[{"title":"New","offer_id":45354831479097,"sku":"LX36400","price":8400.0,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":45354831511865,"sku":"LX36400-R","price":2732.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/LX36400_1a8e5967-7039-4fdf-a7dc-89d69234ee4e.jpg?v=1686696627"},{"product_id":"square-d-mga36400-3-pole-circuit-breaker","title":"Square D MGA36400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Belonging to the PowerPacT M-frame family, this 400A electronic trip breaker provides reliable power distribution for industrial facilities. The microprocessor-controlled unit ensures highly accurate sensing. Designed for Square D I-Line panelboards, the plug-on phase connections simplify installation. It serves as a modern replacement for legacy MA36400 models. Featuring adjustable magnetic trip settings, it achieves a 35kAIC rating at 480VAC and includes a push-to-trip testing mechanism.","brand":"Square D","offers":[{"title":"New","offer_id":51149427507513,"sku":"MGA36400","price":4174.99,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":51206225527097,"sku":"MGA36400-R","price":4450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/MGA36400_8c68002d-bf23-4899-9bb0-7b298ef1e4a0.jpg?v=1686697252"},{"product_id":"federal-pacific-njl631400-r-400-amp","title":"Federal Pacific NJL631400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Formulated for demanding industrial environments, this 400A, 3-pole MCCB ensures dependable fault response. The legacy component is rated for systems up to 600VAC. Designed as a drop-in solution, the breaker mounts into classic Federal Pacific switchboards. Utilizing original bolt-on dimensions preserves panel integrity and speeds up maintenance. It serves as a substitute for the NJL632400. With a 30kAIC rating at 480V, the fixed trip unit delivers consistent safety.","brand":"Federal Pacific","offers":[{"title":"Re-Certified","offer_id":45354914578745,"sku":"NJL631400-R","price":1178.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/NJL631400-R_1_657b15b3-15b4-46fc-a855-d8f542332b29.jpg?v=1686699138"},{"product_id":"general-electric-sghb36bc0400-400-amp","title":"ABB \/ General Electric SGHB36BC0400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Built for demanding electrical environments, the GE SGHB36BC0400 is a 3-pole, 400A molded case circuit breaker from the Spectra RMS SG frame lineup. It integrates into GE Spectra Series panelboards, switchboards, and motor control centers, and is replaced by the ABB Tmax XT5. This model stands out with its MicroVersaTrip Plus electronic trip unit, offering adjustable long-time, instantaneous, and ground fault protection (LIGT). It features true RMS sensing and a 35kAIC rating at 480VAC.","brand":"ABB \/ General Electric","offers":[{"title":"New","offer_id":45355260641593,"sku":"SGHB36BC0400","price":1423.42,"currency_code":"USD","in_stock":false}]},{"product_id":"general-electric-sghc3604l3xx-400-amp","title":"ABB \/ General Electric SGHC3604L3XX - 400A 3 Pole Molded Case Circuit Breaker","description":"Part of the Spectra RMS series, the SGHC3604L3XX 400A, 3-pole MCCB serves commercial and industrial applications. It features a microEntelliGuard trip unit with adjustable long-time, short-time, and instantaneous (LSI) protection. This bolt-on breaker installs into GE Spectra Series panelboards and switchboards. For legacy upgrades, it is replaced by the ABB XT5N 400 LSI via a retrofit kit.","brand":"ABB \/ General Electric","offers":[{"title":"New","offer_id":45355261919545,"sku":"SGHC3604L3XX","price":3780.42,"currency_code":"USD","in_stock":true}]},{"product_id":"general-electric-sglc3404l4xx","title":"ABB \/ General Electric SGLC3404L4XX - 400A 3 Pole Molded Case Circuit Breaker","description":"Delivering reliable power distribution for industrial facilities, this 400A electronic trip breaker features interchangeable rating plugs for maximum flexibility. The unit-mount configuration installs easily into GE Spectra Series panelboards, switchboards, and motor control centers. With a 65kAIC rating at 480VAC, it provides comprehensive long-time, short-time, instantaneous, and ground fault protection. This model is currently superseded by the ABB Tmax XT5 series for new installations.","brand":"ABB \/ General Electric","offers":[{"title":"New","offer_id":45355266474297,"sku":"SGLC3404L4XX","price":1283.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/SGLC3404L4XX_1_4a68fd1c-ebfe-4c4a-a4e4-b286185d802b.jpg?v=1686703906"},{"product_id":"siemens-shjd69400-400-amp","title":"Siemens SHJD69400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Engineered for industrial applications, the Siemens SHJD69400 is a 3-pole, 400A electronic trip molded case circuit breaker. This unit mount breaker installs into Siemens Sentron panelboards and switchboards. It serves as a replacement for the Sensitrip IV SHJD6B400LI. Rated for 65 kAIC at 480VAC, it features an interchangeable solid state trip unit with adjustable long-time and instantaneous (LI) settings for precise coordination.","brand":"Siemens","offers":[{"title":"New","offer_id":45355267555641,"sku":"SHJD69400","price":4418.21,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/shjd69400.jpg?v=1686703927"},{"product_id":"siemens-shjd69400ngth-400-amp","title":"Siemens SHJD69400NGTH - 400A 3 Pole Molded Case Circuit Breaker","description":"Offering maximum continuous power, the Siemens SHJD69400NGTH is a 100% rated, 3-pole, 400A electronic trip circuit breaker for demanding loads. Designed for unit mounting, this JD frame breaker fits into Siemens Sentron panelboards and switchboards. It replaces the legacy SHJD6B400LSIGH. With a 65 kAIC rating at 480VAC, it includes an interchangeable solid state trip unit. Adjustable LSIG functions provide precise coordination and ground fault protection.","brand":"Siemens","offers":[{"title":"New","offer_id":45355268833593,"sku":"SHJD69400NGTH","price":9200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/shjd69400ngth.jpg?v=1686703938"},{"product_id":"siemens-shld69400-400-amp","title":"Siemens SHLD69400 - 400A 3 Pole Molded Case Circuit Breaker","description":"Designed for commercial and industrial applications, this 400A bolt-on molded case circuit breaker delivers 65 kAIC of interrupting capacity at 480VAC. It installs into Siemens Sentron panelboards, switchboards, and motor control centers. The Sensitrip III electronic trip unit provides adjustable long-time and instantaneous (LI) protection with true RMS sensing for accurate overcurrent response. Note: This legacy model is replaced by the 3VA6340-6HL31-0AA0, which requires a strap kit.","brand":"Siemens","offers":[{"title":"New","offer_id":45355269357881,"sku":"SHLD69400","price":0.01,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/shld69400.jpg?v=1686703948"},{"product_id":"general-electric-tb43400af14-r-400-amp","title":"ABB \/ General Electric TB43400AF14 - 400A 3 Pole Molded Case Circuit Breaker","description":"Part of GE's Tri-Break line, the TB43400AF14 is a 400A, 3-pole molded case circuit breaker engineered for demanding industrial environments. It delivers robust overcurrent protection for heavy-duty electrical systems. This bolt-on MCCB installs into compatible GE switchboards and motor control centers. Built on the TB4 frame, it features a thermal-magnetic trip unit with adjustable magnetic settings. With a 200 kAIC rating at 600VAC, this current-limiting breaker utilizes internal fuses.","brand":"ABB \/ General Electric","offers":[{"title":"Re-Certified","offer_id":45355427725625,"sku":"TB43400AF14-R","price":1482.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/TB43400AF14-R_1.jpg?v=1686706611"},{"product_id":"general-electric-thjs3604-r-400-amp","title":"ABB \/ General Electric THJS3604 - 400A 3 Pole Molded Case Circuit Breaker","description":"Engineered for heavy-duty industrial use, the GE THJS3604 is a 400-amp, 3-pole electronic trip circuit breaker. It provides highly accurate long-time and instantaneous (LI) protection for commercial systems. Designed to fit GE J-Frame enclosures and switchboards, this unit-mount MCCB serves as a critical legacy component. For future upgrades, it is replaced by the SGHA36AT0400 via retrofit solutions. Equipped with a Micro VersaTrip solid-state unit, it boasts 35 kAIC at 480VAC.","brand":"ABB \/ General Electric","offers":[{"title":"Re-Certified","offer_id":45355493458233,"sku":"THJS3604-R","price":1019.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/thjs3604_b8f80ab4-e7f9-4dc3-b244-d19fa4b7f1a6.jpg?v=1686707812"},{"product_id":"general-electric-tjd432y400-3-pole-circuit-breaker","title":"ABB \/ General Electric TJD432Y400 - 400A 3 Pole Molded Case Switch","description":"Part of the legacy J-Frame series, the GE TJD432Y400 is a 400A, 3-pole molded case switch for commercial isolation applications. As a non-automatic disconnect, it provides no thermal overload protection but features a high magnetic withstand to safely open during short circuits. This bolt-on switch installs into GE A-Series panels, Spectra switchboards, and J-Frame enclosures. 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