{"title":"100 Amp Circuit Breakers","description":"\u003ch2\u003e100 Amp Circuit Breakers\u003c\/h2\u003e\u003cp\u003eShop 100 amp circuit breakers across leading brands and series. Filter 100A 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":"square-d-989316-r-100-amp","title":"Square D 989316 - 100A 3 Pole Molded Case Circuit Breaker","description":"Restoring older electrical systems, the Square D 989316 is a 100A, three-pole molded case circuit breaker. It belongs to the legacy ML-1 series for commercial use. This breaker mounts into compatible ML-1 panelboards using a bolt-on connection. It is built for three-phase applications and accepts 3-1\/0 AWG wiring via included lugs. Rated 10kAIC at 240VAC, the unit employs fixed thermal-magnetic trip elements to deliver reliable long-time and instantaneous fault protection.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45353937174841,"sku":"989316-R","price":210.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/989316-R_81a1e936-901b-4cf9-8892-c9990ef759e9.jpg?v=1686672697"},{"product_id":"square-d-a1b2100-r-100-amp","title":"Square D A1B2100 - 100A 2 Pole Molded Case Circuit Breaker","description":"Mounts into older Square D NA1B panelboards to provide robust thermal-magnetic protection for commercial and industrial facilities. This 100A, 2-pole molded case circuit breaker is engineered for 240VAC systems and features long-time and instantaneous trip functions. The bolt-on design ensures a secure connection within compatible legacy load centers. It accommodates 4-1\/0 AWG copper or aluminum wiring via standard lug terminals.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354034495801,"sku":"A1B2100-R","price":522.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/a1b2100-r_03f555ec-12ec-4900-a3eb-44383b87ff18.jpg?v=1686673470"},{"product_id":"siemens-b3100hh-100-amp","title":"Siemens B3100HH - 100A 3 Pole Molded Case Circuit Breaker","description":"Part of the Siemens B-frame lineup, the B3100HH is a 3-pole, 100A molded case circuit breaker built for commercial and industrial power distribution. It provides reliable thermal-magnetic protection for demanding electrical systems. This bolt-on breaker installs into Siemens P1, P2, and P3 panelboards, utilizing load-side lug terminals for secure connections. Rated for 65kAIC at 240VAC, it features a non-interchangeable trip unit and carries an HACR rating for HVAC applications.","brand":"Siemens","offers":[{"title":"New","offer_id":45354164814137,"sku":"B3100HH","price":377.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/B3100HH_14da6d92-4c29-4aed-8600-088512ac78ed.jpg?v=1686677185"},{"product_id":"siemens-bq3b100-01-100-amp","title":"Siemens BQ3B100-01 - 100A 3 Pole Molded Case Circuit Breaker","description":"Designed for advanced monitoring needs, the Siemens BQ3B100-01 is a 100-amp, 3-pole molded case circuit breaker. It includes a factory-installed auxiliary switch that allows facility managers to track breaker status remotely. This unit mounts into standard Siemens panelboards using a reliable bolt-on connection. As a direct replacement for the standard BQ3B100, it upgrades existing setups with signaling capabilities. It delivers 10 kAIC of short-circuit protection at 240VAC.","brand":"Siemens","offers":[{"title":"New","offer_id":45354188833081,"sku":"BQ3B100-01","price":148.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/BQ3B100-01_cda11c7c-e12f-4517-8fd4-1b64718c2896.jpg?v=1686677727"},{"product_id":"cutler-hammer-brhh2100-100-amp","title":"Eaton \/ Cutler-Hammer BRHH2100 - 100A 2 Pole Miniature Circuit Breaker","description":"Part of the BR series, the Eaton BRHH2100 is a 100-amp, two-pole miniature circuit breaker designed for residential and light commercial use. It utilizes thermal-magnetic trip technology to deliver reliable long-time and instantaneous protection. Installs into Eaton Type BR load centers using a standard plug-on configuration. The box lug terminals accommodate #4-1\/0 AWG wiring. With a high interrupting rating of 42 kAIC at 120\/240VAC, this breaker handles significant fault currents.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"New","offer_id":45354190700857,"sku":"BRHH2100","price":109.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/files\/BRHH2100-2-Pole-Circuit-Breaker_Eaton_1.jpg?v=1760459910"},{"product_id":"siemens-cf3b100-r-100-amp","title":"Siemens \/ ITE CF3B100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Built for heavy-duty industrial environments, this 100A current-limiting MCCB safeguards critical electrical circuits against severe faults. The bolt-on configuration mounts into classic Siemens switchboards, providing a seamless match without requiring modern adapters. Now superseded by the CED63B100, this original CF-frame breaker achieves a massive 200kAIC interrupting capacity at 480V by utilizing integral Amp-Trap fuses to restrict let-through energy.","brand":"Siemens \/ ITE","offers":[{"title":"Re-Certified","offer_id":45354243129657,"sku":"CF3B100-R","price":804.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/CF3B100-R.jpg?v=1686678594"},{"product_id":"siemens-ee3b100-r-100-amp","title":"Siemens EE3B100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Designed for heavy-duty power distribution, the Siemens EE3B100 is a 3-pole, 100A molded case circuit breaker. It delivers reliable thermal-magnetic protection for commercial and industrial facilities requiring consistent performance. This E-Frame breaker installs into Siemens Sentron and older ITE panelboards via a standard bolt-on configuration. If a modern substitute is required, the ED23B100 serves as the exact replacement. It features a 10kAIC rating at 240VAC and includes load side lugs.","brand":"Siemens","offers":[{"title":"Re-Certified","offer_id":45354372694329,"sku":"EE3B100-R","price":756.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/EE3B100.jpg?v=1686681262"},{"product_id":"siemens-ef3a100-r-100-amp","title":"Siemens EF3A100 - 100A 3 Pole Motor Circuit Protector","description":"Engineered for industrial motor control applications, this 100A instantaneous-only device provides dedicated short-circuit defense. It coordinates with external overload relays to protect specific motor loads without nuisance tripping during startup. Designed to fit older Siemens and I-T-E panelboards, this E-Frame unit utilizes a bolt-on mounting configuration. It serves as an exact match for existing installations and is officially replaced by the modern ED63A100 for new builds.","brand":"Siemens","offers":[{"title":"Re-Certified","offer_id":45354376134969,"sku":"EF3A100-R","price":1198.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/EF3A100.jpg?v=1686681307"},{"product_id":"siemens-ef3b100-r-100-amp","title":"Siemens EF3B100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Engineered for commercial applications, the Siemens EF3B100 is a 3-pole, 100A molded case circuit breaker operating up to 600VAC. It provides reliable long-time and instantaneous (LI) trip functions. This bolt-on unit fits legacy Siemens, I-T-E, and FC-1 panelboards, plus FC-20 switchboards. As an older E-Frame model, it is officially replaced by the ED63B100. Rated at 14kAIC at 480VAC, it features fixed thermal-magnetic settings and includes load side lugs.","brand":"Siemens","offers":[{"title":"Re-Certified","offer_id":45354381967673,"sku":"EF3B100-R","price":964.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/EF3B100-R.jpg?v=1686681393"},{"product_id":"siemens-eh3b100-r-100-amp","title":"Siemens EH3B100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Operating as a crucial safety component, the Siemens EH3B100 offers dependable thermal-magnetic trip capabilities. This 3-pole, 100-amp MCCB is engineered to protect commercial wiring from overloads and short circuits. Designed for secure bolt-on installation, it integrates smoothly into Siemens P-series and older ITE distribution boards. With an interrupting capacity of 14kAIC at 480VAC, it meets UL 489 standards and accepts copper or aluminum conductors via standard load lugs.","brand":"Siemens","offers":[{"title":"Re-Certified","offer_id":45354388750649,"sku":"EH3B100-R","price":1595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/eh3b100.jpg?v=1686681490"},{"product_id":"square-d-ehb34100-3-pole-circuit-breaker","title":"Square D EHB34100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Built for commercial and industrial applications, the Square D EHB34100 is a 3-pole, 100A molded case circuit breaker. It utilizes thermal-magnetic technology to provide long-time and instantaneous protection. This bolt-on breaker mounts into legacy Square D NEHB panelboards. For newer installations, the EDB34100 serves as a substitute but requires an NF series panelboard. Rated at 14kAIC at 480Y\/277VAC, it includes load-side lugs and features the signature Visi-Trip indicator.","brand":"Square D","offers":[{"title":"New","offer_id":45354405101881,"sku":"EHB34100","price":4640.0,"currency_code":"USD","in_stock":false},{"title":"Re-Certified","offer_id":45354405134649,"sku":"EHB34100-R","price":2340.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/files\/EHB34100-3-Pole-Molded-Case-Circuit-Breaker_SquareD_1.jpg?v=1779301531"},{"product_id":"square-d-fal36100-3-pole-circuit-breaker-re-certified","title":"Square D FAL36100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Serving as a reliable overcurrent solution, the Square D FAL36100 is a 100A, 3-pole molded case circuit breaker with standard thermal-magnetic (LI) trip functions. Built for unit mount configurations, it installs into Square D enclosures, switchboards, and motor control centers. This legacy F-Frame breaker crosses over to the newer HGL36100 or BDL36100 series for facility upgrades. With an 18kAIC rating at 480VAC, it provides robust fault protection and includes an AL100FA mechanical lug kit.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354415128889,"sku":"FAL36100-R","price":419.98,"currency_code":"USD","in_stock":true},{"title":"New","offer_id":45354415161657,"sku":"FAL36100","price":1295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/files\/FAL36100-3-Pole-Circuit-Breaker_SquareD_1.jpg?v=1767799290"},{"product_id":"square-d-fal3610016m-3-pole-circuit-breaker","title":"Square D FAL3610016M - 100A 3 Pole Motor Circuit Protector","description":"Designed for motor control applications, this 100A F-frame device provides reliable magnetic-only short circuit protection. It installs into Square D combination controllers to safeguard equipment across 600VAC and 250VDC systems. As a legacy unit mount component, it offers an exact fit for older panelboards. This unit is replaced by the HJL36100M73. The Mag-Gard technology features an adjustable instantaneous trip for precise coordination.","brand":"Square D","offers":[{"title":"New","offer_id":45354415391033,"sku":"FAL3610016M","price":2562.08,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":45354415423801,"sku":"FAL3610016M-R","price":753.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/FAL3610016M_ff65d629-a4e8-4651-bb18-827f1b81b433.jpg?v=1686681907"},{"product_id":"westinghouse-fb3100-r-100-amp","title":"Eaton \/ Cutler-Hammer FB3100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Operating as a critical safety component, this 100-amp molded case circuit breaker safeguards commercial wiring against overloads and short circuits. The three-pole unit relies on fixed thermal and magnetic elements to maintain consistent electrical protection. Installation requires bolting the breaker into compatible Westinghouse or Eaton Pow-R-Line enclosures. It acts as an exact functional cross-reference for FDB3100 breakers. Capable of interrupting 14kA at 480VAC, it meets UL 489 standards.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354418078009,"sku":"FB3100-R","price":241.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/FB3100-R_9fc11289-baa3-4187-9a53-958ef7c4ecfa.jpg?v=1686681979"},{"product_id":"cutler-hammer-fdb2100l-100-amp","title":"Eaton \/ Cutler-Hammer FDB2100L - 100A 2 Pole Molded Case Circuit Breaker","description":"Built for standalone configurations, the Eaton FDB2100L is a 2-pole, 100A unit-mount circuit breaker. It provides essential power distribution and protection for commercial and industrial facilities. Unlike standard panel-mount versions, this Series C F-Frame breaker includes both line and load lugs, allowing for flexible installation in control panels and custom enclosures. Delivering 14 kAIC at 480VAC, it features fixed thermal-magnetic (LI) trip functions and is reverse feed capable.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"New","offer_id":45354423419193,"sku":"FDB2100L","price":491.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/files\/FDB2100-2-Pole-Circuit-Breaker_Eaton-Cutler-Hammer_1_d07e93d3-73b2-4925-8447-39451aaf864b.jpg?v=1779814016"},{"product_id":"square-d-fhl3610018m-3-pole-circuit-breaker","title":"Square D FHL3610018M - 100A 3 Pole Motor Circuit Protector","description":"Part of the legacy F-Frame series, the Square D FHL3610018M is a 3-pole, 100A motor circuit protector. It provides dedicated short-circuit protection for motor branch circuits when paired with an overload relay. This unit-mount device installs into motor control centers and combination starters using AL100FA lugs. For facilities upgrading older equipment, this model is replaced by the newer HJL36100M73. It features an adjustable 300-1100A magnetic trip range, rated 25 kAIC at 480VAC.","brand":"Square D","offers":[{"title":"New","offer_id":45354437738809,"sku":"FHL3610018M","price":2610.0,"currency_code":"USD","in_stock":false},{"title":"Re-Certified","offer_id":45354437771577,"sku":"FHL3610018M-R","price":1295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/fhl3610018m_87a7b10f-f6e4-47d9-bdd7-b3edd85edf57.jpg?v=1686682842"},{"product_id":"cutler-hammer-fs320100a-r-100-amp","title":"Eaton \/ Cutler-Hammer FS320100A - 100A 3 Pole Molded Case Circuit Breaker","description":"Engineered for demanding electrical distribution, the FS320100A provides robust thermal-magnetic protection. This 3-pole, 100A molded case circuit breaker is a core component of the Series C F-Frame family. It installs into Eaton Series C panelboards and switchboards. It serves as a reliable replacement for older installations and is eventually replaced by the FD3100. Rated for 22 kAIC at 240VAC, it features a non-interchangeable trip unit and includes line and load lugs.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354489708857,"sku":"FS320100A-R","price":324.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/FS320100A-R_0b094c23-42f7-47af-8965-0d216e288c21.jpg?v=1686685309"},{"product_id":"cutler-hammer-gd3100-100-amp","title":"Eaton \/ Cutler-Hammer GD3100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Built for heavy-duty motor control applications, the GD3100 delivers consistent 100-amp circuit protection. This three-pole breaker utilizes fixed thermal-magnetic trip elements to safeguard critical commercial and industrial infrastructure. The device mounts into Eaton Series C panelboards, motor control centers, and standalone enclosures. Its G-Frame footprint allows for straightforward integration into existing power systems. Featuring a 22kAIC rating at 480VAC, this MCCB is HACR rated.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"New","offer_id":51149395099961,"sku":"GD3100","price":1148.0,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":51699940229433,"sku":"GD3100-R","price":300.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/files\/GD3100-3-Pole-Circuit-Breaker_Eaton_1.jpg?v=1749139741"},{"product_id":"siemens-heb3b100b-3-pole-circuit-breaker","title":"Siemens HEB3B100B - 100A 3 Pole Molded Case Circuit Breaker","description":"Designed for reliable power distribution, the HEB3B100B is a 3-pole, 100A molded case circuit breaker from the Sentron family. It provides fixed thermal and magnetic trip functions to safeguard commercial and industrial electrical systems. This bolt-on unit fits seamlessly into Siemens P1, P2, and P3 panelboards. It serves as a standard component for these panels and is eventually replaced by the HEG3B100B. Boasting a 65kAIC rating at 480VAC, it includes load side lugs and is fully HACR rated.","brand":"Siemens","offers":[{"title":"New","offer_id":45354573693241,"sku":"HEB3B100B","price":2900.0,"currency_code":"USD","in_stock":false},{"title":"Re-Certified","offer_id":45354573726009,"sku":"HEB3B100B-R","price":1895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/heb3b100b_17bc556a-d10b-4d9c-a22c-106b463afaf1.jpg?v=1686688166"},{"product_id":"federal-pacific-hf631100-100-amp","title":"Federal Pacific HF631100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Engineered for demanding industrial loads, the Federal Pacific HF631100 3-pole, 100A molded case circuit breaker features a trip-free mechanism to ensure reliable thermal-magnetic protection. This bolt-on breaker fits Federal Pacific F-Frame panelboards, offering a seamless replacement for aging infrastructure. It eliminates the need for retrofitting and can be substituted with the UBIF100. Boasting a 65kAIC rating at 240VAC, it provides superior defense against severe faults.","brand":"Federal Pacific","offers":[{"title":"Re-Certified","offer_id":45354579427641,"sku":"HF631100","price":512.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/hf631100-r_de4e8c41-f7e6-48e2-9aa5-bab1c8882570.jpg?v=1686688395"},{"product_id":"westinghouse-hfb3100-r-100-amp","title":"Eaton \/ Cutler-Hammer HFB3100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Manufactured for heavy-duty electrical distribution, this 100-amp F-Frame breaker features fixed thermal and magnetic trip elements. The unit mounts into legacy Westinghouse FDP enclosures as well as modern Eaton Pow-R-Line C panelboards. With a maximum voltage rating of 600VAC and 250VDC, it accommodates a wide range of industrial setups. This specific Mark 75 series component is HACR rated for heating and cooling systems, though it has been superseded by the HFD3100 in current catalogs.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354582114617,"sku":"HFB3100-R","price":295.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/HFB3100-R_ec9f8a13-26ba-4faf-9170-a8ffa5982504.jpg?v=1686688497"},{"product_id":"square-d-hjl36100m73-3-pole-circuit-breaker","title":"Square D HJL36100M73 - 100A 3 Pole Motor Circuit Protector","description":"Part of the Square D PowerPacT H-Frame lineup, the HJL36100M73 is a 3-pole motor circuit protector designed for demanding industrial applications. It delivers instantaneous short-circuit protection for motor branch circuits, ensuring reliable operation in motor control centers and switchboards. This unit-mount breaker installs into standard industrial control panels and PowerPacT H-Frame enclosures. It features an adjustable 180-1040A magnetic trip and a 65kAIC rating at 480VAC.","brand":"Square D","offers":[{"title":"New","offer_id":45354588897593,"sku":"HJL36100M73","price":1667.5,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":45354588930361,"sku":"HJL36100M73-R","price":797.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/HJL36100M73_bd9cc260-efcc-4167-827d-7f25653b104c.jpg?v=1686688733"},{"product_id":"eaton-cutler-hammer-hka3100-3-pole-circuit-breaker","title":"Eaton \/ Cutler-Hammer HKA3100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Belonging to the Mark 75 family, the HKA3100 is a 3-pole, 100A molded case circuit breaker. Built for commercial and industrial power distribution, it features an interchangeable thermal-magnetic trip unit with adjustable magnetic settings. This K-frame breaker installs into Westinghouse panelboards, Eaton Pow-R-Line C switchboards, and motor control centers. Rated for 35kAIC at 480VAC, it delivers high interrupting capacity and serves as a reliable cross-reference for HKD3100 and KD3100 models.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"New","offer_id":45354589061433,"sku":"HKA3100","price":1798.6,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":45354589094201,"sku":"HKA3100-R","price":1199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/hka3100_52fadaed-1f52-457d-a0c2-9de4e886fa99.jpg?v=1686688741"},{"product_id":"hkb3100-r","title":"Eaton \/ Cutler-Hammer HKB3100 - 100A 3 Pole Molded Case Circuit Breaker","description":"Engineered for commercial and industrial distribution, the Eaton HKB3100 is a 3-pole, 100A molded case circuit breaker from the classic Mark 75 lineup. This K-Frame device provides reliable overcurrent protection for heavy-duty applications, utilizing a standard thermal-magnetic trip unit with long-time and instantaneous (LI) functions. It installs into vintage Eaton Series C panelboards and Westinghouse switchboards. Rated for 65kAIC at 240VAC, it is replaced by the modern HKD3100.","brand":"Eaton \/ Cutler-Hammer","offers":[{"title":"Re-Certified","offer_id":45354589159737,"sku":"HKB3100-R","price":1654.48,"currency_code":"USD","in_stock":true}]},{"product_id":"cutler-hammer-hmcp100k3-100-amp","title":"Eaton \/ Cutler-Hammer HMCP100K3 - 100A 3 Pole Motor Circuit Protector","description":"Part of Eaton's Series C family, the HMCP100K3 is a 3-pole motor circuit protector designed for industrial motor control applications. This unit-mount device integrates with Eaton Series C NEMA Size 3 motor starters. It features standard aluminum lug terminals for secure connections. 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