Circuit Breakers
Filters
Clear Filters
Trip Type
- Fixed thermal, fixed magnetic
- T-M (Fxd-Fxd) TU
- Non-Interchangeable
- Thermal-Magnetic
- Common breaker trip
- 5-10X /n
- Thermal-magnetic
- 10-20X /n
- Fixed thermal, adjustable magnetic
- THERMAL-MAGNETIC
- 3-5X /n
- Common
- T-M (Fxd-Adj) TU
- Electronic LSI
- Electronic LS
- Electronic LSIG
- Independent
- Interchangeable thermal-magnetic
- Trip flag
- Thermal magnetic
- Adjustable thermal, adjustable magnetic
- Adjustable thermal, fixed magnetic
- Electronic LI
- Trip-to-center
- Electronic LSG
- PXR 10 LSI
- PXR 20 LSI
- 8-12X /n
- Non-interchangeable
- 2-3X /n
- Adjustable
- ELECTRONIC TRIP UNIT
- Non-interchangeable magnetic only
- Common trip
- Non-interchangeable thermal-magnetic
- Magnetic only
- PXR 20 LSIG
- Electronic ALSIG with maintenance mode
- Non-interchangeable thermal magnetic
- ELECTRONIC TRIP UNIT WITH LCD DISPLAY
- Interchangeable
- Model A trip
- PXR 25 LSI
- 310+ Electronic LSI
- 310+ electronic LS
- Frame only (no trip)
- THERMAL MAGNETIC TRIP UNIT
Siemens
MFR: Siemens
MFR #: B390H
UPC: 783643264069
Item #: 147529
Available to Order
$1391.51
each
Siemens
MFR: Siemens
MFR #: B27000S01
UPC: 783643268432
Item #: 584388
Available to Order
$797.94
each
Siemens
MFR: Siemens
MFR #: LD6N3R
UPC: 783643255135
Item #: 353418
Available to Order
$6073.55
each
Siemens
MFR: Siemens
MFR #: B230H00S01
UPC: 783643268777
Item #: 146262
Available to Order
$797.94
each
Siemens
MFR: Siemens
MFR #: Q130H
UPC: 783643156333
Item #: 230135
Available to Order
$130.87
each
Siemens
MFR: Siemens
MFR #: HED43B025L
UPC: 783643236417
Item #: 140277
Available to Order
$3780.44
each
Siemens
MFR: Siemens
MFR #: ED42B015
UPC: 783643209213
Item #: 1277779
Available to Order
$1733.76
each
Siemens
MFR: Siemens
MFR #: ED43B125
UPC: 783643209503
Item #: 29686
Available to Order
$5285.38
each
Siemens
MFR: Siemens
MFR #: FHOFBO
UPC: 783643200609
Item #: 207576
Available to Order
$600.41
each
Siemens
MFR: Siemens
MFR #: BE220H
UPC: 783643274174
Item #: 660997
Available to Order
$1959.65
each
Siemens
MFR: Siemens
MFR #: NXD63B800H
UPC: 783643094994
Item #: 1273866
Available to Order
$37349.72
each
Siemens
MFR: Siemens
MFR #: B370H
UPC: 783643264045
Item #: 86331
Available to Order
$1191.04
each
Siemens
MFR: Siemens
MFR #: B290H
UPC: 783643263963
Item #: 394358
Available to Order
$842.92
each
Siemens
MFR: Siemens
MFR #: FXD62B250
UPC: 783643211186
Item #: 394399
Available to Order
$9619.30
each
Siemens
MFR: Siemens
MFR #: HED43B070
UPC: 783643210189
Item #: 31602
Available to Order
$4066.96
each
Siemens
MFR: Siemens
MFR #: ED23B060
UPC: 783643209046
Item #: 225500
Available to Order
$1470.72
each
Siemens
MFR: Siemens
MFR #: HED43B100L
UPC: 783643236516
Item #: 537801
Available to Order
$4066.96
each
Siemens
MFR: Siemens
MFR #: CRHOH
UPC: 783643278844
Item #: 583109
Available to Order
$110.50
each
Siemens
MFR: Siemens
MFR #: JXD23B400
UPC: 783643212978
Item #: 211166
Available to Order
$8984.66
each
Siemens
MFR: Siemens
MFR #: ED23B050
UPC: 783643209039
Item #: 6472
Available to Order
$1470.72
each
Siemens
MFR: Siemens
MFR #: ED22B040
UPC: 783643208889
Item #: 269852
Available to Order
$989.60
each
Siemens
MFR: Siemens
MFR #: FD63T250
UPC: 783643211995
Item #: 7470
Available to Order
$7717.34
each
Siemens
MFR: Siemens
MFR #: CQD390
UPC: 783643277847
Item #: 1000269
Available to Order
$1631.09
each
Siemens
MFR: Siemens
MFR #: 5SY4116-8
UPC: 754554875521
Item #: 56713
Available to Order
$200.04
each
Siemens
MFR: Siemens
MFR #: ED42B060L
UPC: 783643083837
Item #: 342774
Available to Order
$1733.76
each
Siemens
MFR: Siemens
MFR #: QG220
UPC: 783643148499
Item #: 185532
Available to Order
$220.75
each
Siemens
MFR: Siemens
MFR #: ED41B015L
UPC: 783643314887
Item #: 726467
Available to Order
$578.90
each
Siemens
MFR: Siemens
MFR #: B320HH
UPC: 783643264212
Item #: 141665
Available to Order
$1232.12
each
Siemens
MFR: Siemens
MFR #: ED42B125L
UPC: 783643314849
Item #: 401672
Available to Order
$4595.01
each
Siemens
MFR: Siemens
MFR #: ED63A050
UPC: 783643210851
Item #: 446523
Available to Order
$3284.66
each
Siemens
MFR: Siemens
MFR #: BQD1100
UPC: 783643277205
Item #: 103578
Available to Order
$567.16
each
Siemens
MFR: Siemens
MFR #: Q1520NC
UPC: 783643156616
Item #: 23661
Available to Order
$227.36
each
Siemens
MFR: Siemens
MFR #: HFXD63B150
UPC: 783643318144
Item #: 45568
Available to Order
$15459.14
each
Siemens
MFR: Siemens
MFR #: CQD325
UPC: 783643277755
Item #: 513060
Available to Order
$1210.60
each
Siemens
MFR: Siemens
MFR #: B330H00S01
UPC: 783643268937
Item #: 394361
Available to Order
$1390.53
each
Siemens
MFR: Siemens
MFR #: S15ED60
UPC: 783643234512
Item #: 466819
Available to Order
$1679.98
each
Siemens
MFR: Siemens
MFR #: 3RV1011-1DA10
UPC: 754554408941
Item #: 82434
Available to Order
$486.88
each
Siemens
MFR: Siemens
MFR #: S01ED60
UPC: 783643234482
Item #: 193231
Available to Order
$957.33
each
Siemens
MFR: Siemens
MFR #: 5SY4204-5
UPC: 754554875637
Item #: 1200352
Available to Order
$134.02
each
Siemens
MFR: Siemens
MFR #: B390
UPC: 783643263796
Item #: 108577
Available to Order
$886.93
each
Siemens
MFR: Siemens
MFR #: HJD63F400
UPC: 783643213432
Item #: 1240351
Available to Order
$12415.03
each
Siemens
MFR: Siemens
MFR #: ED42B025
UPC: 783643209237
Item #: 1277777
Available to Order
$1733.76
each
Siemens
MFR: Siemens
MFR #: ED43B035
UPC: 783643209404
Item #: 681113
Available to Order
$2270.61
each
Siemens
MFR: Siemens
MFR #: ED63B020
UPC: 783643209671
Item #: 258757
Available to Order
$2589.40
each
Siemens
MFR: Siemens
MFR #: HED43B060L
UPC: 783643236479
Item #: 518977
Available to Order
$3780.44
each
Siemens
MFR: Siemens
MFR #: B325H
UPC: 783643306318
Item #: 18661
Available to Order
$978.85
each
Siemens
MFR: Siemens
MFR #: FXD62B225
UPC: 783643211179
Item #: 199186
Available to Order
$5660.89
each
Siemens
MFR: Siemens
MFR #: B37000S01
UPC: 783643268593
Item #: 389362
Available to Order
$1214.51
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.