Bolt-On Circuit Breakers

Shop bolt-on circuit breakers for commercial and industrial panelboards from Eaton, Cutler-Hammer, Siemens, ITE, Square D, Schneider Electric, GE, Federal Pioneer, Federal Pacific, and other current or legacy series.

Panelboard breakers must match the approved panel and bus design. Verify the exact catalog number, series, poles, amperage, voltage, kAIC, mounting hardware, rejection features, wire range, and panel label before installation.

Email sales@ampstate.com with the breaker label and panel schedule for replacement identification. View all circuit breakers.

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Square D QOU290 - 90 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU290 - 90 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
The Square D QOU290 is a dependable 90A, 240V, 2-pole bolt-on molded case circuit breaker...
Square D QOU280 - 80 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU280 - 80 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Square D QOU280 — 80A, 240V, 2-pole bolt-on molded case circuit breaker designed to deliver...
Square D QOU270 - 70 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU270 - 70 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Meet the Square D QOU270 — a 70 A, 240 V, 2-pole bolt-on molded case...
Square D QOU260 - 60 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU260 - 60 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Square D QOU260 stands as a dependable 60A, 240V, 2-pole bolt-on molded case circuit breaker...
Square D QOU250 - 50 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU250 - 50 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Power reliable 240V protection with the Square D QOU250—a 50A, 2-pole bolt-on molded case circuit...
Square D QOU245 - 45 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU245 - 45 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
The Square D QOU245 is a 2-pole, 45 A, 240 V bolt-on molded case circuit...
Square D QOU240 - 40 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU240 - 40 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
< p>Meet the Square D QOU240 — a dependable 40A, 240V, 2‑pole bolt‑on molded case...
Square D QOU235 - 35 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU235 - 35 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
The Square D QOU235 is a 35A, 240V, 2-pole bolt-on molded case circuit breaker designed...
Square D QOU230 - 30 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU230 - 30 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Meet the Square D QOU230: a 30-amp, 240-volt, 2-pole bolt-on molded case circuit breaker built...
Square D QOU225 - 25 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU225 - 25 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Designed by Square D, the QOU225 is a 2-pole bolt-on molded-case circuit breaker rated at...
Square D QOU220 - 20 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU220 - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Meet the Square D QOU220 — a dependable 20A, 240V, 2-pole bolt-on molded case circuit...
Square D QOU215 - 15 A 240 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Square D QOU215 - 15 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
The Square D QOU215 is a purpose-built, 15A, 240V, 2-pole bolt-on molded case circuit breaker...
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