{"title":"Bolt-On Circuit Breakers","description":"\u003ch2\u003eBolt-On Circuit Breakers\u003c\/h2\u003e\u003cp\u003eShop bolt-on circuit breakers across leading brands and series. A bolt-on breaker fastens to the panel bus with screws and is used in commercial and industrial panelboards where vibration or high available fault current rules out a plug-on connection. Filter by amperage, poles, voltage, series, phase, special classification, trip technology, and family.\u003c\/p\u003e\u003cp\u003eMatch the panelboard series and interrupting rating before ordering. Bolt-on and plug-on breakers are not interchangeable. Need help identifying a replacement? \u003ca href=\"\/pages\/get-a-quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"11270-r","title":"Siemens \/ ITE P270 - 70A 2 Pole Molded Case Circuit Breaker","description":"Manufactured by Siemens, this thermal-magnetic unit provides reliable overcurrent protection for residential and commercial applications. It serves as an exact fit for aging infrastructure requiring specific form factors. Designed specifically for Pushmatic load centers, it mounts securely using a bolt-on connection. This model acts as a seamless substitute for the UBIP270, eliminating the need for complex retrofits. It features a distinctive push-button mechanism and carries an HACR rating.","brand":"Siemens \/ ITE","offers":[{"title":"Re-Certified","offer_id":45352962949433,"sku":"11270-R","price":86.28,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/11270-R_30b6549c-4238-4b9f-aff1-213eed58003d.jpg?v=1686650544"},{"product_id":"federal-pacific-2b125-125-amp","title":"Federal Pacific 2B125 - 125A 2 Pole Molded Case Circuit Breaker","description":"Built for commercial applications, the Federal Pacific 2B125 delivers 125 amps of thermal-magnetic protection. This two-pole molded case breaker operates at 240VAC to safeguard critical branch circuits. Designed specifically as an exact fit for legacy Federal Pacific NBLP panelboards, it installs via a secure bolt-on connection. Facility managers can also cross-reference this unit with the UBIF2125NB substitute for ongoing maintenance needs.","brand":"Federal Pacific","offers":[{"title":"New","offer_id":45353062203705,"sku":"2B125","price":300.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/2B125_844c4e47-01a0-45d9-93e1-092527505398.jpg?v=1686653753"},{"product_id":"federal-pacific-2b150-150-amp","title":"Federal Pacific 2B150 - 150A 2 Pole Molded Case Circuit Breaker","description":"Essential for legacy electrical maintenance, this 150-amp Federal Pacific breaker delivers dependable two-pole protection. It utilizes fixed thermal and magnetic trip elements to monitor 240VAC commercial circuits. The unit integrates perfectly with existing Federal Pacific NBLP panelboards via standard bolt-on mounting hardware. 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Rated 10kAIC at 240VAC, it utilizes fixed thermal and magnetic trip technology to defend against overloads and short circuits.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45353936716089,"sku":"989270-R","price":134.82,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/989270-R_f233fa19-b9fd-48be-894d-ef7e965019fc.jpg?v=1686672686"},{"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-992330-r-30-amp","title":"Square D 992330 - 30A 3 Pole Molded Case Circuit Breaker","description":"Engineered for commercial and industrial power distribution, the Square D 992330 is a 3-pole, 30-amp molded case circuit breaker from the 99 Series. It provides robust overcurrent protection for demanding electrical systems. This bolt-on MCCB installs into Square D Type ML panelboards, serving as an exact replacement for aging or failing ML Series components.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45353939140921,"sku":"992330-R","price":250.79,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/992330-R_6df3c9fa-371f-4aff-a0f1-2a2b65f4d41b.jpg?v=1686672716"},{"product_id":"square-d-997327-r-225-amp","title":"Square D 997327 - 225A 3 Pole Molded Case Circuit Breaker","description":"Built to support heavy-duty commercial loads, the Square D 997327 is a 225-amp, 3-pole molded case circuit breaker. It operates at up to 600VAC, providing robust thermal-magnetic protection for critical electrical distribution networks. Designed as a replacement for aging infrastructure, this breaker mounts seamlessly into Square D Type ML panelboards. With a 10kAIC interrupt rating at both 480VAC and 600VAC, it ensures reliable long-time and instantaneous fault clearing capabilities.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45353939566905,"sku":"997327-R","price":638.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/997327-R_20e36976-c527-4321-8d46-517d54c68515.jpg?v=1686672727"},{"product_id":"square-d-999370-r-70-amp","title":"Square D 999370 - 70A 3 Pole Molded Case Circuit Breaker","description":"Built to support legacy commercial infrastructure, the Square D 999370 delivers 70 amps of reliable power distribution. This 3-pole MCCB belongs to the obsolete 999 series, offering a crucial maintenance solution. Designed with a sturdy bolt-on configuration, it installs seamlessly into Square D ML panelboards and motor control centers. Facility managers rely on this exact Type ML-1 replacement to keep existing enclosures operational.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45353940320569,"sku":"999370-R","price":210.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/999370-R_f811d1ff-1f8c-46f4-add4-f7a23e44b595.jpg?v=1686672738"},{"product_id":"square-d-a1b120-r-20-amp","title":"Square D A1B120 - 20A 1 Pole Molded Case Circuit Breaker","description":"Engineered for older distribution systems, the Square D A1B120 is a 20-amp, single-pole molded case circuit breaker. It is specifically built to mount into legacy NA1B panelboards, providing a reliable solution for maintaining vintage commercial and industrial infrastructure. The breaker delivers standard 10 kAIC interrupting capacity at 120VAC and includes Visi-Trip technology for immediate fault recognition.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354031939897,"sku":"A1B120-R","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/a1b120-r_1.jpg?v=1686673448"},{"product_id":"square-d-a1b140-r-40-amp","title":"Square D A1B140 - 40A 1 Pole Molded Case Circuit Breaker","description":"Part of the classic A1B series, this 40A single-pole molded case circuit breaker delivers thermal-magnetic protection for commercial and industrial environments. It operates at 120VAC with a 10kAIC interrupt rating. Designed specifically for bolt-on applications, it mounts into vintage Square D NA1B panelboards. When panel upgrades are required, this unit is replaced by the QOB140 using a specialized retrofit kit.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354033283385,"sku":"A1B140-R","price":53.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/a1b140-r_1.jpg?v=1686673458"},{"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":"square-d-a1b250-r-50-amp","title":"Square D A1B250 - 50A 2 Pole Molded Case Circuit Breaker","description":"Providing reliable thermal-magnetic protection, this 50A molded case circuit breaker is built for demanding commercial and industrial applications. The two-pole unit safeguards electrical circuits against overloads and short circuits using fixed long-time and instantaneous trip functions. Installation is straightforward, as the breaker bolts firmly into compatible Square D NA1B panelboards.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354036003129,"sku":"A1B250-R","price":362.31,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/a1b250-r_791235d2-7752-43de-8125-d7923a937045.jpg?v=1686673480"},{"product_id":"square-d-a1b315-r-15-amp","title":"Square D A1B315 - 15A 3 Pole Molded Case Circuit Breaker","description":"Delivering 15A of thermal-magnetic protection, the Square D A1B315 is a 3-pole molded case circuit breaker for commercial and industrial applications. It ensures reliable defense against overloads and short circuits. This legacy bolt-on breaker is manufactured to fit seamlessly into older Square D NA1B panelboards. It accepts 14-8 AWG copper or aluminum wire via the included load side lugs. With a 10kAIC rating at 240VAC, the unit features a long body profile and the Visi-Trip indicator.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354037248313,"sku":"A1B315-R","price":134.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/a1b315-r_aeed90a9-378e-41f3-8809-5836a9da134a.jpg?v=1686673491"},{"product_id":"square-d-a1b330-r-30-amp","title":"Square D A1B330 - 30A 3 Pole Molded Case Circuit Breaker","description":"Engineered for commercial applications, the Square D A1B330 is a 3-pole miniature molded case circuit breaker. It features a long body design and a Visi-Trip indicator for quick status checks. This 30A breaker bolts into legacy Square D NA1B panelboards. It provides a crucial maintenance solution for facilities running classic 240V distribution systems. Rated for 10 kAIC at 240VAC, it utilizes fixed thermal-magnetic trip technology and accepts 14-8 AWG wire via load side lugs.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354038296889,"sku":"A1B330-R","price":134.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/a1b330-r_5e9db348-735a-401a-aeac-4f757de9134f.jpg?v=1686673502"},{"product_id":"square-d-a1b350-r-50-amp","title":"Square D A1B350 - 50A 3 Pole Molded Case Circuit Breaker","description":"Part of the classic A1B series, this 50A molded case circuit breaker delivers reliable thermal-magnetic protection for commercial facilities. It operates on 240VAC systems and handles standard overcurrent events with a 10 kAIC rating. This breaker mounts into older Square D NA1B panelboards, making it an ideal solution for maintaining existing electrical systems. The long body design incorporates a Visi-Trip visual indicator to help electricians quickly spot tripped circuits.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354039607609,"sku":"A1B350-R","price":348.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/A1B350-R.jpg?v=1686673515"},{"product_id":"square-d-a1b390-r-90-amp","title":"Square D A1B390 - 90A 3 Pole Molded Case Circuit Breaker","description":"Designed for older commercial and industrial installations, this 90A molded case circuit breaker delivers dependable thermal-magnetic overcurrent protection. The three-pole unit features a bolt-on mounting style engineered exclusively for legacy Square D NA1B panelboards. Operating at 240VAC with a 10kAIC interrupt rating, it includes a distinctive long body construction. A built-in Visi-Trip indicator allows facility managers to easily spot tripped circuits during maintenance.","brand":"Square D","offers":[{"title":"Re-Certified","offer_id":45354041475385,"sku":"A1B390-R","price":198.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/a1b390-r_b101de90-2612-4d03-b36e-af6017bd4230.jpg?v=1686673526"},{"product_id":"trumbull-at27200-r-200-amp","title":"ABB \/ Trumbull AT27200 - 200A 2 Pole Molded Case Circuit Breaker","description":"Sourced for commercial and industrial applications, the AT27200 provides reliable thermal-magnetic protection for aging electrical infrastructure. This 200A component ensures continued operation of established facilities. Installation is straightforward for Trumbull and GE A-Series panelboards, offering a seamless bolt-on connection. 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With a 10kAIC interrupting capacity at 480VAC, the unit provides dependable fault clearing for commercial facilities.","brand":"ABB \/ Trumbull","offers":[{"title":"Re-Certified","offer_id":45354137715001,"sku":"AT37150-R","price":426.03,"currency_code":"USD","in_stock":false}]},{"product_id":"trumbull-at37225-r-225-amp","title":"ABB \/ Trumbull AT37225 - 225A 3 Pole Molded Case Circuit Breaker","description":"Part of the legacy Type AT series, the ABB AT37225 is a 3-pole, 225A molded case circuit breaker built for commercial power distribution in older Trumbull systems. This bolt-on breaker installs into GE A-Series panelboards to support aging infrastructure. For modern upgrades, it is replaced by the TFK236225 for 600V systems or the TQD32225 for 240V applications. Rated for 10kAIC at 480V, it features fixed thermal-magnetic trip settings and accepts 4 AWG to 300 kcmil wiring.","brand":"ABB \/ Trumbull","offers":[{"title":"Re-Certified","offer_id":45354137977145,"sku":"AT37225-R","price":426.03,"currency_code":"USD","in_stock":false}]},{"product_id":"trumbull-att337150-r-225-amp","title":"ABB \/ Trumbull ATT337150 - 150A 2 Pole Molded Case Circuit Breaker","description":"A drop-in replacement for older Trumbull switchboards and GE panelboards, the ABB ATT337150 restores power to aging systems. This 2-pole, 150A molded case circuit breaker is engineered for commercial environments requiring heavy-duty performance. It installs into existing bolt-on enclosures without custom adapters. Officially replaced by the TED124150 for newer setups, this legacy unit is rated 30 kAIC at 480VAC and utilizes fixed thermal-magnetic trip units for consistent LI protection.","brand":"ABB \/ Trumbull","offers":[{"title":"Re-Certified","offer_id":45354157048121,"sku":"ATT337150-R","price":156.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/ATT337150-R.jpg?v=1686676966"},{"product_id":"trumbull-att337200-r-200-amp","title":"ABB \/ Trumbull ATT337200 - 200A 3 Pole Molded Case Circuit Breaker","description":"Rated 30 kAIC at 480VAC, this 200A molded case circuit breaker provides essential long-time and instantaneous protection for three-phase systems. The ABB ATT337200 is designed to support older commercial electrical infrastructure. It bolts into legacy GE panelboards and Trumbull switchboards, ensuring a precise fit without extensive modifications. Replaced by the TFK236200 in updated catalogs, it features fixed thermal-magnetic trip elements to handle demanding 600VAC loads with reliability.","brand":"ABB \/ Trumbull","offers":[{"title":"Re-Certified","offer_id":45354157375801,"sku":"ATT337200-R","price":156.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/ATT337200-R_f2a7a2bc-c655-4ecd-a61a-2aec6456021f.jpg?v=1686676976"},{"product_id":"trumbull-att337225-r-225-amp","title":"ABB \/ Trumbull ATT337225 - 225A 3 Pole Molded Case Circuit Breaker","description":"Part of the legacy AT frame lineup, the ATT337225 is a 3-pole, 225-amp molded case circuit breaker built for commercial and industrial applications. It provides a straightforward maintenance solution for facilities utilizing older electrical infrastructure. This bolt-on MCCB installs into Trumbull switchboards and GE panelboards, ensuring an exact fit without modification. When upgrading, the TFK236225 serves as the modern substitute. It features a 30kAIC rating at 480VAC and LI protection.","brand":"ABB \/ Trumbull","offers":[{"title":"Re-Certified","offer_id":45354158293305,"sku":"ATT337225-R","price":156.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/ATT337225-R_328c11d8-7988-4896-b66b-309ba533e96d.jpg?v=1686676986"},{"product_id":"siemens-b120af-arc-fault","title":"Siemens B120AF - 20A AFCI Miniature Circuit Breaker","description":"Part of the BAF series, this 20-amp branch\/feeder arc-fault circuit breaker delivers reliable protection against parallel arcing faults. The Siemens B120AF features a bolt-on mounting style, ensuring a robust connection within Siemens P1, P2, P3, P4, and P5 panelboards. Rated for 10 kAIC at 120VAC, it includes a pigtail neutral and is HACR and SWD rated for switching 120V fluorescent lighting loads. Note that this legacy branch\/feeder model has been superseded by the BA120AFC combination AFCI.","brand":"Siemens","offers":[{"title":"New","offer_id":45354160619833,"sku":"B120AF","price":145.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/products\/ba120af_1_965557d3-fe61-4f48-8e83-88d7c0bb0fd7.jpg?v=1686677071"},{"product_id":"siemens-b125-25-amp","title":"Siemens B125 - 25A 1 Pole Molded Case Circuit Breaker","description":"Built for commercial and industrial power systems, the Siemens B125 delivers dependable overcurrent protection for 25A branch circuits. This 1-pole molded case circuit breaker features a thermal-magnetic trip unit with long-time and instantaneous functions. It mounts into Siemens P1, P2, P3, P4, and P5 panelboards using a standard bolt-on connection. Rated at 10kAIC at 120\/240VAC, it provides essential safety and performance for everyday electrical distribution needs.","brand":"Siemens","offers":[{"title":"New","offer_id":45354161635641,"sku":"B125","price":18.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/files\/B125-1-Pole-Circuit-Breaker_Siemens_1.jpg?v=1776353221"},{"product_id":"siemens-b130hh-30-amp","title":"Siemens B130HH - 30A 1 Pole Molded Case Circuit Breaker","description":"Part of the Siemens B-frame family, the B130HH is a 1-pole, 30A molded case circuit breaker built for demanding commercial and industrial applications. It provides reliable thermal-magnetic protection for branch circuits. This unit installs into Siemens P1, P2, and P3 panelboards using a secure bolt-on connection. It accepts 10-8 AWG copper or 10-6 AWG aluminum wiring via load side lugs. Featuring a high interrupting rating of 65 kAIC at 120\/240VAC, it ensures robust fault clearing.","brand":"Siemens","offers":[{"title":"New","offer_id":45354161832249,"sku":"B130HH","price":45.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/files\/B130HH_1.jpg?v=1790170667"},{"product_id":"siemens-b220hh-20-amp","title":"Siemens B220HH - 20A 2 Pole Molded Case Circuit Breaker","description":"Designed for maximum protection, the Siemens B220HH 2-pole, 20-amp molded case circuit breaker anchors the high-performance HBL family. This unit fastens into Siemens P1 through P5 panelboards. The bolt-on mounting ensures a vibration-proof connection, and the load-side lugs feature Insta-Wire technology for faster installation. Its standout feature is an extra-high 65kAIC interrupting rating, ideal for systems with significant available fault current. 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As an HBL type breaker, it delivers a 65kAIC rating at 120\/240VAC and is fully HACR rated.","brand":"Siemens","offers":[{"title":"New","offer_id":45354164289849,"sku":"B230HH","price":159.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/6978\/0537\/files\/B230-2-Pole-Circuit-Breaker_Siemens_1_18231b03-04c5-4616-a2d2-62cfaa934ce3.jpg?v=1768403375"},{"product_id":"siemens-b235hh-35-amp","title":"Siemens B235HH - 35A 2 Pole Molded Case Circuit Breaker","description":"Part of Siemens' B-frame family, this 35A molded case circuit breaker provides reliable thermal-magnetic protection for commercial and industrial applications. It features a bolt-on mounting style for secure connections in demanding environments. The unit installs into Siemens P1, P2, P3, P4, and P5 panelboards. It includes factory-installed load side lugs and accepts 10-6 AWG aluminum or 10-8 AWG copper wire. 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