Circuit Breakers and Accessories

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Siemens
BREAKER QR ALCU LUGS 1W 300MCM-KIT of 3
MFR: Siemens
MFR #: 3TA1QR300
UPC: 804766159688
Item #: 913701
Available to Order
$198.15 each
Availability
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Siemens
LOW VOLTAGE UN-ASSEMBLED MOBILE HOME LOAD CENTER PANEL. BOX FACTORY INSTALLED MAIN BREAKER 20 (1 INCH) SPACES INTERIOR ALLOWING 40 MAX CIRCUITS. 1-PHASE 3-WIRE SYSTEM RATED 120/240V (200A). SPECIAL FEATURES FACTORY INSTALLED GROUNDBAR.
MFR: Siemens
MFR #: MB2040B1200G
UPC: 887621203009
Item #: 484351
Available to Order
$458.90 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE UN-ASSEMBLED MOBILE HOME LOAD CENTER PANEL. BOX FACTORY INSTALLED MAIN BREAKER 16 (1 INCH) SPACES INTERIOR ALLOWING 32 MAX CIRCUITS. 1-PHASE 3-WIRE SYSTEM RATED 120/240V (200A). SPECIAL FEATURES FACTORY INSTALLED GROUNDBAR.
MFR: Siemens
MFR #: MB1632B1200G
UPC: 887621202965
Item #: 483671
Available to Order
$434.84 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE UN-ASSEMBLED MOBILE HOME LOAD CENTER PANEL. BOX FACTORY INSTALLED MAIN BREAKER 12 (1 INCH) SPACES INTERIOR ALLOWING 24 MAX CIRCUITS. 1-PHASE 3-WIRE SYSTEM RATED 120/240V (100A). SPECIAL FEATURES FACTORY INSTALLED GROUNDBAR.
MFR: Siemens
MFR #: MB1224B1100G
UPC: 887621202910
Item #: 483670
Available to Order
$293.29 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE UN-ASSEMBLED MOBILE HOME LOAD CENTER PANEL. WHITE TRIM FOR MB2040B1200G BOX/INTERIOR
MFR: Siemens
MFR #: MT2040B1200W
UPC: 887621136901
Item #: 484356
Available to Order
$191.52 each
Availability
Location Available Qty
Siemens
DOOR COUPLING ROTARY MECHANISM DOOR DRIVE 8UC7 HANDLE TI-GREY/BL.GREEN BASIC MASKING FRAME LIGHT GRAY FOR SWITCH DISCONNECTOR 3KL55, 3KM55, 3KL57, 3KM57, 3KA FOR ACTUATING SHAFTS 10X10MM
MFR: Siemens
MFR #: 8UC7313-1BB30
UPC: 754554961361
Item #: 1223101
Available to Order
$2870.96 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER EXTERNAL ACCESSORY. COMPLETE ROTARY DOOR MOUNTED OPERATING HANDLE WITH STANDARD DEPTH. SUITS 3-POLE ED FRAME BREAKERS. MOUNTS ON NEMA TYPE 1 / 3 / 3R / 4 / 4X ENCLOSURES.
MFR: Siemens
MFR #: CRHOESD
UPC: 783643278851
Item #: 1026268
Available to Order
$866.36 each
Availability
Location Available Qty
Siemens
BREAKER NGB 1P 40A 347V 14KA LD LUG W/LOAD LUGS INDIV PK
MFR: Siemens
MFR #: NGB1B040B
UPC: 783643414006
Item #: 341382
Available to Order
$1056.79 each
Availability
Location Available Qty
Siemens
BREAKER NGB 1P 20A 347V 14KA LD LUG W/LOAD LUGS INDIV PK
MFR: Siemens
MFR #: NGB1B020B
UPC: 783643413962
Item #: 315799
Available to Order
$1056.79 each
Availability
Location Available Qty
Siemens
BREAKER NGB 1P 30A 347V 14KA LD LUG W/LOAD LUGS INDIV PK
MFR: Siemens
MFR #: NGB1B030B
UPC: 783643413986
Item #: 394524
Available to Order
$1056.79 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Sentron Molded Case Circuit Breakers - MCCB Connection Accessories are Circuit Protection Molded Case Circuit Breakers. BREAKER NGG 40A WITH LUGS PKG-3 ACC
MFR: Siemens
MFR #: 3TC1Q1
UPC: 783643502277
Item #: 1236494
Available to Order
$49.41 each
Availability
Location Available Qty
Siemens
BREAKER NGG 125A STEEL LUGS PKG-3 ACC
MFR: Siemens
MFR #: 3TC1GG20
UPC: 783643515369
Item #: 1236913
Available to Order
$99.07 each
Availability
Location Available Qty
Siemens
Link module, screw electrical and mechanical, for 3RV2.2 and 3rt2.2, DC operation or 3RW3 soft starter or 3rf34 solid-state contactor (multi-unit packaging)
MFR: Siemens
MFR #: 3RA29211B
UPC: 662643904741
Item #: 1167078
Available to Order
$57.01 each
Availability
Location Available Qty
Siemens
BREAKER P1A 3 PH 480V MNTG KIT ED43B125
MFR: Siemens
MFR #: MBKED3125A
UPC: 887621790073
Item #: 394464
Available to Order
$18869.45 each
Availability
Location Available Qty
Siemens
BREAKER P1A 3 PH 240V MNTG KIT JXD23B400
MFR: Siemens
MFR #: MBKJD32400A
UPC: 887621791834
Item #: 394491
Available to Order
$30200.72 each
Availability
Location Available Qty
Siemens
BREAKER P1A 3 PH 480V MNTG KIT ED43B100
MFR: Siemens
MFR #: MBKED3100A
UPC: 887621790066
Item #: 394473
Available to Order
$11039.63 each
Availability
Location Available Qty
Siemens
BREAKER P1A 1 PH 600V MNTG KIT JXD62B400
MFR: Siemens
MFR #: MBKJD1400A
UPC: 887621791797
Item #: 394486
Available to Order
$26388.75 each
Availability
Location Available Qty
Siemens
BREAKER P1A 3 PH 600V MNTG KIT JXD63B400
MFR: Siemens
MFR #: MBKJD3400A
UPC: 887621791674
Item #: 394494
Available to Order
$34753.82 each
Availability
Location Available Qty
Siemens
BREAKER P1A 3 PH 600V MNTG KIT FXD63B250
MFR: Siemens
MFR #: MBKFD3250A
UPC: 887621791667
Item #: 394485
Available to Order
$25721.39 each
Availability
Location Available Qty
Siemens
BREAKER P1A 3 PH 240V MNTG KIT JXD23B300
MFR: Siemens
MFR #: MBKJD32300A
UPC: 887621791810
Item #: 394490
Available to Order
$30200.72 each
Availability
Location Available Qty
Siemens
BREAKER P1A 3 PH 600V MNTG KIT FXD63B225
MFR: Siemens
MFR #: MBKFD3225A
UPC: 887621791650
Item #: 394484
Available to Order
$18414.82 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA AND SENTRON CIRCUIT BREAKER ACCESSORY. DOOR MOUNTED ROTARY OPERATOR. LONG HANDLE ONLY NEMA TYPE 4/4X. SUITABLE FOR 3VA5, 3VA6, SENTRON UL CIRCUIT BREAKERS
MFR: Siemens
MFR #: RHOH4
UPC: 783643205253
Item #: 223770
Available to Order
$797.74 each
Availability
Location Available Qty
Siemens
BREAKER MOUNTING KIT W/ ED43B100 W/ 100/3 ED4
MFR: Siemens
MFR #: MBKED3100
UPC: 783643096004
Item #: 22554
Available to Order
$15551.55 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER ACCESSORY. COMPRESSION LUG FOR 1/2/3-POLE 30A - 125A ED FRAME BREAKER. WIRE SIZE 2/0 (CU/AL) SINGLE LUG.
MFR: Siemens
MFR #: CCE125
UPC: 783643208087
Item #: 1113748
Available to Order
$154.40 each
Availability
Location Available Qty
Siemens
BREAKER ED 5MA GD FAULT RELAY BASIC KIT GROUND FAULT SENSING RELAY KIT G.F. KIT
MFR: Siemens
MFR #: GF01ED65
UPC: 783643235441
Item #: 830288
Available to Order
$9991.42 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER ACCESSORY. ALUMINUM BODY LUG FOR 2/3-POLE 70A - 250A FD FRAME BREAKER. WIRE RANGE 6AWG - 350KCMIL (CU) / 4AWG - 350KCMIL (AL). SUITABLE FOR LINE AND LOAD SIDES. SINGLE LUG.
MFR: Siemens
MFR #: TA1FD350A
UPC: 783643173408
Item #: 5247
Available to Order
$128.67 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER EXTERNAL ACCESSORY. 12IN SHAFT FOR ROTARY OPERATING MECHANISM. SUITS ED / FD / JD / LD / LMD FRAME BREAKERS.
MFR: Siemens
MFR #: RHOSVD
UPC: 783643205147
Item #: 1126347
Available to Order
$179.28 each
Availability
Location Available Qty
Siemens
BREAKER FD MAX-FLEX COMPLETE KIT 36 "
MFR: Siemens
MFR #: FHOF036
UPC: 783643318823
Item #: 639234
Available to Order
$3674.73 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA AND SENTRON CIRCUIT BREAKER ACCESSORY. DOOR MOUNTED ROTARY OPERATOR. COMPACT HANDLE ONLY NEMA TYPE 4/4X. SUITABLE FOR 3VA5, 3VA6, SENTRON UP TO 600A UL CIRCUIT BREAKERS
MFR: Siemens
MFR #: RHOH4C
UPC: 783643229631
Item #: 122491
Available to Order
$1001.89 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Sentron Molded Case Circuit Breakers - MCCB Locking and Interlocking Accessory are Circuit Protection Molded Case Circuit Breakers. BREAKER JD/LD/LMD PADLOCK DEVICE
MFR: Siemens
MFR #: JD6HPL
UPC: 783643187313
Item #: 60239
Available to Order
$160.40 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER ACCESSORY. ALUMINUM BODY LUG FOR 2/3-POLE 500A - 1200A LMD / MD / ND FRAME BREAKER. WIRE RANGE 1/0AWG -500KCMIL (CU/AL) - 3 BARREL LUG. SUITABLE FOR LINE AND LOAD SIDES. SINGLE LUG.
MFR: Siemens
MFR #: TA3K500
UPC: 783643247710
Item #: 644047
Available to Order
$634.76 each
Availability
Location Available Qty
Siemens
BREAKER ED 30MA GD FAULT RELAY BASIC KIT GROUND FAULT SENSING RELAY KITG.F. KIT
MFR: Siemens
MFR #: GF01ED60
UPC: 783643235434
Item #: 830286
Available to Order
$9991.42 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER EXTERNAL ACCESSORY. PLUG-IN MOUNTING ASSEMBLY (BASE AND TULIP ASSEMBLY). FOR 3-POLE ED FRAME BREAKERS. SUITABLE FOR LOAD SIDE ONLY.
MFR: Siemens
MFR #: PC2658
UPC: 783643181113
Item #: 1002471
Available to Order
$1133.99 each
Availability
Location Available Qty
Siemens
Low Voltage Sentron Electronics Accessories - Sentron Comm and Elect Accessories are Circuit Protection Molded Case Circuit Breakers. Type Replacement Lugs. Features Standard Package 6 pieces Application For use with Type BQ, NGG 100A Al Cu Lugs A. Rating 100 Frame BQ, NGG 100A
MFR: Siemens
MFR #: TA1Q1
UPC: 783643161429
Item #: 258844
Available to Order
$12.18 each
Availability
Location Available Qty
Siemens
BREAKER QR 120VAC 48VDC ST
MFR: Siemens
MFR #: S01QR2
UPC: 804766137419
Item #: 919792
Available to Order
$2017.50 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 100A 3-POLE (65KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.
MFR: Siemens
MFR #: HQR23B100
UPC: 804766136900
Item #: 870200
Available to Order
$9378.97 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETICTRIP UNIT. ASSEMBLED 100 PERCENT RATED STANDARD 40 DEG C BREAKER MD FRAME WITH STANDARD BREAKING CAPACITY. 800A 3-POLE (25KAIC AT 600V) (50KAIC AT 480V). NON-INTERCHANGEABLE TRIP UNIT. SPECIAL FEATURES NO LUGS INSTALLED. DIMENSIONS (W x H x D) IN 9.00 x 16.0 x 6.00.
MFR: Siemens
MFR #: MXD63B800H
UPC: 783643320239
Item #: 1368264
Available to Order
$50461.49 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 175A 3-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.
MFR: Siemens
MFR #: QR23B175
UPC: 804766136658
Item #: 1115555
Available to Order
$5700.93 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 150A 3-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.
MFR: Siemens
MFR #: QR23B150
UPC: 804766136641
Item #: 772226
Available to Order
$5232.46 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers General Purpose MCCBs, TM - are Circuit Protection Molded Case Circuit Breakers. 2-Pole circuit breaker Type QRH2 HACR rated. Rated 240V (150A). AIR (25 kA). Special features UL listed for reverse feed applications, (AL) load side lugs installed.
MFR: Siemens
MFR #: QRH22B150
UPC: 804766136221
Item #: 1143045
Available to Order
$4796.71 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers General Purpose MCCBs, TM - are Circuit Protection Molded Case Circuit Breakers. 3-Pole circuit breaker Type QRH2 HACR rated. Rated 240V (125A). AIR (25 kA). Special features UL listed for reverse feed applications, (AL) load side lugs installed.
MFR: Siemens
MFR #: QRH23B125
UPC: 804766136771
Item #: 673665
Available to Order
$7322.01 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Accessories. Enclosure for QR circuit breaker type NEMA1 flush mount.
MFR: Siemens
MFR #: QR2N1F
UPC: 804766137556
Item #: 1227037
Available to Order
$1533.71 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Accessories. Enclosure for QR circuit breaker type NEMA1 surface mount.
MFR: Siemens
MFR #: QR2N1S
UPC: 804766137549
Item #: 967008
Available to Order
$1533.71 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V GFCI Circuit Breakers - 2-Pole, GFCI - BLF, 10KAIC, 120/240VAC are Circuit ProtectionMolded Case Circuit Breakers. BRKR 30A 2P 120/240V 10K BLFB GFCI 5MA
MFR: Siemens
MFR #: BF230A
UPC: 887621215415
Item #: 617623
Available to Order
$844.88 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 225A 2-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.
MFR: Siemens
MFR #: QR22B225
UPC: 804766136115
Item #: 1241684
Available to Order
$2012.35 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 200A 2-POLE (10KA AT 240V). SPECIAL FEATURES BULK PACK, NO LUGS INSTALLED.
MFR: Siemens
MFR #: QR22B200W
UPC: 804766136610
Item #: 1060314
Available to Order
$1996.91 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 225A 3-POLE (65KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.
MFR: Siemens
MFR #: HQR23B225
UPC: 804766136955
Item #: 1182325
Available to Order
$9288.04 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 200A 3-POLE (65KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.
MFR: Siemens
MFR #: HQR23B200
UPC: 804766136948
Item #: 656076
Available to Order
$9288.04 each
Availability
Location Available Qty

About Circuit Breakers and Accessories

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. Circuit breaker accessories are used to extend the functionality, mount, secure, protect, and extend the life of circuit breakers.