Top 20 Best Selling Thermal-Magnetic Circuit Breakers (2019)




Protects household equipment from internally and externally generated surgesView larger Mount through any available knock out that will support the installation configurationView larger Product informationView larger What does a Surge Protector do ... more info



Siemens plug in circuit breakers are intended for use in Siemens EQ, Siemens Ultimate, ITE, and Gould load centers or meter combinations. The double pole Siemens breakers may be used in 1 or 3-phase load centers and are 240V rated. To ensure the warranty ... more info





Single pole circuit breaker for CH load centers. 1 space required, 120/240V AC; 10,000 AIC. UL listed No. CHF115: Brand: Eaton, Number of Poles: 1 Pole, Amperage Rating: 15A, Type: CH, Space Required: 1 Space, Voltage Rating: 120V/240V, UL Listed?: Yes No ... more info




Siemens main breaker kits are used to convert the Ultimate type of main lug load centers to main breaker load centers, or can be used as a replacement main breaker in main breaker type Ultimate load centers. Ultimate load centers are the current load cent ... more info

BULLDOG PUSHMATIC 20A, 1 POLE CIRCUIT BREAKERS 31120 ITE STYLE 1P 20A FITS SIEMENS ... more info



3/4 per pole, 120/240 Volts ac. 10,000 AIC. Quick make, quick break switch, inverse time element tripping operation and trip free handle. Thermal-magnetic trip curve. #14 - 8 wire range 15 to 30 amp, #14 - 2 wire range 40 to 70 amp, #10 - 1/0 wire range10 ... more info


Single pole ground fault circuit interrupter circuit breaker. Type THQL, 1'' module. 120/240V. UL listed. ... more info


Siemens main breaker kits are used to convert the Ultimate type of main lug load centers to main breaker load centers, or can be used as a replacement main breaker in main breaker type Ultimate load centers. Ultimate load centers are the current load cent ... more info

The QO 20 Amp Tandem Single-Pole Replacement Circuit Breaker offers 2 poles in the space of 1. The replacement breaker is for use in old-style, non-class CTL QO load centers and has a maximum load of 240 volts. The breaker features Qwik-Open and a Visi-Tr ... more info




Siemens standby power mechanical interlock kits provide a means to ensure that the main breaker powered by utility power within a panel is forced to the OFF position when standby power is in use. It also ensures that the standby source is forced to t ... more info

Siemens space saving, plug in circuit breakers are intended for use in Siemens EQ, Siemens Ultimate, ITE, and Gould load centers and meter combinations that are rated to accept type QT breakers. Check wiring diagram to confirm. To ensure the warranty on a ... more info


Square D/I-Line Industrial Circuit Breaker150 Amp - 240/480/600V ACType KAIncludes set of bottom / load-side lugs.Black Face Breaker600 VAC / 250 VDC3 Pole50/60 HzMagnetic Adustable Trip Range: 750 - 1500 AmperesBreaker Weight: 7.5 lbs.Breaker Dimensions ... more info


Siemens space saving, plug in circuit breakers are intended for use in Siemens EQ, Siemens Ultimate, ITE, and Gould load centers and meter combinations that are rated to accept type QT breakers. Check wiring diagram to confirm. To ensure the warranty on a ... more info



Siemens space saving, plug in circuit breakers are intended for use in Siemens EQ, Siemens Ultimate, ITE, and Gould load centers and meter combinations that are rated to accept type QT breakers. Check wiring diagram to confirm. To ensure the warranty on a ... more info

For more than 90 years, we've been the unchallenged leader in safety switches. Our Square D brand safety switches are preferred two to one over our closest competitor. We've continued our tradition of innovation, developing new features that provide an un ... more info

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