Circuit Breakers
Filters
Clear Filters
Trip Type
- Fixed thermal, fixed magnetic
- T-M (Fxd-Fxd) TU
- Common breaker trip
- Non-Interchangeable
- 5-10X /n
- 10-20X /n
- Thermal-Magnetic
- 3-5X /n
- THERMAL-MAGNETIC
- Common
- Thermal-magnetic
- Fixed thermal, adjustable magnetic
- T-M (Fxd-Adj) TU
- Independent
- Electronic LS
- Electronic LSI
- Trip flag
- Thermal magnetic
- 8-12X /n
- Electronic LSIG
- 2-3X /n
- Trip-to-center
- Adjustable
- PXR 20 LSI
- PXR 10 LSI
- Adjustable thermal, adjustable magnetic
- Interchangeable thermal-magnetic
- Adjustable thermal, fixed magnetic
- Magnetic only
- Common trip
- Electronic LI
- PXR 20 LSIG
- Non-interchangeable thermal magnetic
- Electronic LSG
- Non-interchangeable
Siemens
MFR: Siemens
MFR #: NGB3B020B
UPC: 783643414266
Item #: 97144
Available to Order
$2077.97
each
Siemens
MFR: Siemens
MFR #: BQ3B040
UPC: 783643102613
Item #: 188931
Available to Order
$650.28
each
Siemens
MFR: Siemens
MFR #: Q370
UPC: 783643148451
Item #: 66675
Available to Order
$566.42
each
Siemens
MFR: Siemens
MFR #: BQ1B030
UPC: 783643102347
Item #: 178655
Available to Order
$88.99
each
Siemens
MFR: Siemens
MFR #: B330H
UPC: 783643264007
Item #: 100981
Available to Order
$978.85
each
Siemens
MFR: Siemens
MFR #: TA2J6500
UPC: 783643184312
Item #: 93753
Available to Order
$121.75
each
Siemens
MFR: Siemens
MFR #: B130H
UPC: 783643263833
Item #: 91275
Available to Order
$195.09
each
Siemens
MFR: Siemens
MFR #: Q24030CT2
UPC: 783643083967
Item #: 159869
Available to Order
$274.29
each
Siemens
MFR: Siemens
MFR #: BQ3B020
UPC: 783643102590
Item #: 187599
Available to Order
$650.28
each
Siemens
MFR: Siemens
MFR #: BQ2B100
UPC: 783643102484
Item #: 186034
Available to Order
$522.18
each
Siemens
MFR: Siemens
MFR #: BF220A
UPC: 887621215392
Item #: 784462
Available to Order
$844.88
each
Siemens
MFR: Siemens
MFR #: BQD220
UPC: 783643277229
Item #: 18659
Available to Order
Siemens
MFR: Siemens
MFR #: BQ2B060
UPC: 783643102453
Item #: 184020
Available to Order
$200.46
each
Siemens
MFR: Siemens
MFR #: BQD130
UPC: 783643277113
Item #: 29706
Available to Order
$311.94
each
Siemens
MFR: Siemens
MFR #: BQD370
UPC: 783643277434
Item #: 38160
Available to Order
$1651.62
each
Siemens
MFR: Siemens
MFR #: QE230
UPC: 783643305908
Item #: 39047
Available to Order
$802.64
each
Siemens
MFR: Siemens
MFR #: BQ3B100
UPC: 783643102668
Item #: 192189
Available to Order
$892.79
each
Siemens
MFR: Siemens
MFR #: B340H
UPC: 783643264014
Item #: 172907
Available to Order
$978.85
each
Siemens
MFR: Siemens
MFR #: B380
UPC: 783643263789
Item #: 130684
Available to Order
$886.93
each
Siemens
MFR: Siemens
MFR #: Q315
UPC: 783643148390
Item #: 63841
Available to Order
$456.71
each
Siemens
MFR: Siemens
MFR #: BQD380
UPC: 783643277441
Item #: 506
Available to Order
$1651.62
each
Siemens
MFR: Siemens
MFR #: Q22030CT
UPC: 783643195004
Item #: 113287
Available to Order
$265.70
each
Siemens
MFR: Siemens
MFR #: QN2150RH
UPC: 783643204256
Item #: 54628
Available to Order
$1085.92
each
Siemens
MFR: Siemens
MFR #: Q22020CT
UPC: 783643194991
Item #: 68109
Available to Order
$265.70
each
Siemens
MFR: Siemens
MFR #: Q24040CT2
UPC: 783643083974
Item #: 70843
Available to Order
$274.29
each
Siemens
MFR: Siemens
MFR #: B12000S01
UPC: 783643268234
Item #: 89992
Available to Order
$503.60
each
Siemens
MFR: Siemens
MFR #: FXD63B200
UPC: 783643211278
Item #: 189238
Available to Order
$7801.44
each
Available to Order
$48.89
each
Siemens
MFR: Siemens
MFR #: Q24020CT2
UPC: 783643083950
Item #: 279875
Available to Order
$274.29
each
Siemens
MFR: Siemens
MFR #: MBK200
UPC: 783643158986
Item #: 180578
Available to Order
$1202.91
each
Siemens
MFR: Siemens
MFR #: B325
UPC: 783643263703
Item #: 123800
Available to Order
$645.39
each
Siemens
MFR: Siemens
MFR #: BQD230
UPC: 783643277243
Item #: 20066
Available to Order
$692.33
each
Siemens
MFR: Siemens
MFR #: BQ3B060
UPC: 783643102637
Item #: 190370
Available to Order
$650.28
each
Available to Order
$1391.51
each
Siemens
MFR: Siemens
MFR #: B350H
UPC: 783643264021
Item #: 102006
Available to Order
$978.85
each
Siemens
MFR: Siemens
MFR #: ED43B030L
UPC: 783643236141
Item #: 49174
Available to Order
$2474.99
each
Siemens
MFR: Siemens
MFR #: BQ3B030
UPC: 783643102606
Item #: 188286
Available to Order
$650.28
each
Siemens
MFR: Siemens
MFR #: HQR23B100
UPC: 804766136900
Item #: 870200
Available to Order
$4774.94
each
Siemens
MFR: Siemens
MFR #: BF230A
UPC: 887621215415
Item #: 617623
Available to Order
$844.88
each
Siemens
MFR: Siemens
MFR #: HQR23B200
UPC: 804766136948
Item #: 656076
Available to Order
$4728.00
each
Siemens
MFR: Siemens
MFR #: QR23B200
UPC: 804766136665
Item #: 855280
Available to Order
$2663.72
each
Siemens
MFR: Siemens
MFR #: QF260A
UPC: 887621216788
Item #: 725784
Available to Order
$651.95
each
Siemens
MFR: Siemens
MFR #: QF215A
UPC: 887621216634
Item #: 831296
Available to Order
$651.95
each
Siemens
MFR: Siemens
MFR #: LGB3B125B
UPC: 887621220358
Item #: 394461
Available to Order
$6001.18
each
Siemens
MFR: Siemens
MFR #: LGB3B020B
UPC: 887621220228
Item #: 328651
Available to Order
$3065.62
each
Siemens
MFR: Siemens
MFR #: Q215AFC
UPC: 040892148886
Item #: 239413
Available to Order
$226.04
each
Siemens
MFR: Siemens
MFR #: Q220AFC
UPC: 040892148893
Item #: 11678
Available to Order
$226.04
each
Siemens
MFR: Siemens
MFR #: NGB3B050B
UPC: 783643414327
Item #: 14046
Available to Order
$2077.97
each
About Circuit Breakers
Circuit breakers are a critical component of electrical systems, protecting them against overload or short-circuiting. These devices shut off power when levels exceed a safety threshold in order to prevent damage to equipment or personnel. There are a variety of types of circuit breakers to suit different applications, including miniature, molded case, low voltage, GFCI, and AFCI.