Circuit Breakers
Filters
Trip Type
- Fixed thermal, fixed magnetic
- Thermal-magnetic
- Non-Interchangeable
- Common breaker trip
- T-M (Fxd-Fxd) TU
- 5-10X /n
- 10-20X /n
- 3-5X /n
- Common
- Fixed thermal, adjustable magnetic
- THERMAL-MAGNETIC
- Thermal-Magnetic
- Electronic, basic, ET 1.0,
- Independent
- Interchangeable thermal-magnetic
- Electronic LSI
- Electronic, standard, MicroLogic 3.0, LI
- Electronic LS
- Electronic, standard, MicroLogic 3.2, LI
- Electronic LSIG
- Electronic, ammeter, MicroLogic 6.0 A, LSIG
- Thermal Magnetic
- T-M (Fxd-Adj) TU
- Trip flag
- Electronic, standard, MicroLogic 5.0, LSI
- Thermal magnetic
- Adjustable thermal, adjustable magnetic
- Adjustable thermal, fixed magnetic
- Electronic, standard, MicroLogic 3.2 S, LSI
- Trip-to-center
- Electronic, basic, ET 1.0I, I
- Non-interchangeable thermal-magnetic
- 2-3X /n
- 8-12X /n
- Adjustable
- Electronic, ammeter, MicroLogic 6.2 A, LSIG
- Non-interchangeable
- Non-interchangeable magnetic only
- Electronic LSG
- Magnetic
- Magnetic only
- PXR 10 LSI
- PXR 20 LSI
- Common trip
- Electronic, standard, MicroLogic 3.3, LI
- Electronic ALSIG with maintenance mode
- Model A trip
- Non-interchangeable thermal magnetic
- .025 Seconds
- Electronic LI
- Electronic, ammeter, MicroLogic 5.0 A, LSI
- Electronic, ammeter, MicroLogic 5.2 A, LSI
- Frame only (no trip)
- Interchangeable
- PXR 20 LSIG
- PXR 25 LSI
Discontinued
Siemens
MFR: Siemens
MFR #: MBKQJ3225H
UPC: 783643096172
Item #: 132080
Available to Order
Discontinued
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: MPD2150
UPC: 040892006421
Item #: 183025
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: 3RV1042-4DA10
UPC: 754554849911
Item #: 1200336
Available to Order
Discontinued
Available to Order
Discontinued
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: BF115H
UPC: 783643069596
Item #: 147880
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: MBK200M
UPC: 040892009378
Item #: 443678
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: MP2175KH
UPC: 040892507621
Item #: 570312
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: 3RV1021-1GA10
UPC: 754554409245
Item #: 117969
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: 3RV1042-4MB10
UPC: 754554730486
Item #: 873199
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: 3RV1031-4BB10
UPC: 754554489155
Item #: 941343
Available to Order
Discontinued
Available to Order
Discontinued
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: MP220U
UPC: 040892012194
Item #: 311941
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: 3RV1041-4JA10
UPC: 754554409412
Item #: 299405
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: MP2125
UPC: 040892281194
Item #: 3686
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: QJ22B125L
UPC: 783643088245
Item #: 56834
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: MQ230
UPC: 040892528213
Item #: 191643
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: MPD2150KH
UPC: 040892006438
Item #: 913383
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: 3RV1031-4FB10
UPC: 754554626574
Item #: 562722
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: BF220
UPC: 783643273993
Item #: 175960
Available to Order
Discontinued
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: SND69120ANGT
UPC: 783643251861
Item #: 643713
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: TC5R600
UPC: 783643244634
Item #: 448146
Available to Order
$1398.35
each
Discontinued
Siemens
MFR: Siemens
MFR #: 3RV1021-1KA10
UPC: 754554409276
Item #: 135365
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: QF115P
UPC: 783643314542
Item #: 448121
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: MQ250
UPC: 040892528237
Item #: 5388
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: QF220H
UPC: 783643434677
Item #: 973508
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: SHND69120ANGTH
UPC: 783643253209
Item #: 524812
Available to Order
Discontinued
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: QF215
UPC: 783643148543
Item #: 81770
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: 3RV1041-4FA10
UPC: 754554409399
Item #: 1200337
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: TA1Q300
UPC: 783643122703
Item #: 46522
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: SMD69800ANGT
UPC: 783643251502
Item #: 1004485
Available to Order
Discontinued
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: MQ260
UPC: 040892528244
Item #: 13202
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: SMD69800ANTH
UPC: 783643252660
Item #: 1162098
Available to Order
Discontinued
Siemens
MFR: Siemens
MFR #: QJ22B150
UPC: 783643193727
Item #: 102121
Available to Order
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.