Circuit Breakers and Accessories

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Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 125A 3-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD,NO LUGS. DIMENSIONS (W x H x D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB3B125
UPC: 783643553538
Item #: 175476
Available to Order
$10785.73 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 70A 3-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, LOAD SIDE LUGS ONLY (TC1GG20) WIRE RANGE 8 - 1/0 AWS (CU/AL). DIMENSIONS (W x H x D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB3B070B
UPC: 783643414341
Item #: 394535
Available to Order
$4945.96 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 60A 3-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, NO LUGS. DIMENSIONS (W x H x D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB3B060
UPC: 783643553477
Item #: 279088
Available to Order
$4213.42 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 60A 2-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, LOAD SIDE LUGS ONLY (TC1GG20) WIRE RANGE 8 - 1/0 AWS (CU/AL). DIMENSIONS (W x H x D) IN 2 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB2B060B
UPC: 783643414181
Item #: 394529
Available to Order
$3218.39 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 25A 3-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, NO LUGS. DIMENSIONS (W x H x D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB3B025
UPC: 783643553415
Item #: 203911
Available to Order
$4213.42 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 20A 3-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, NO LUGS. DIMENSIONS (W x H x D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB3B020
UPC: 783643553408
Item #: 279047
Available to Order
$4213.42 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 480V Circuit Breakers - 1-pole, TM - NGB, 14KAIC, 347VAC are Circuit Protection Molded Case Circuit Breakers. BREAKER NGB 1-POLE20A 347V 14KA NO LUGS
MFR: Siemens
MFR #: NGB1B020
UPC: 783643553101
Item #: 237685
Available to Order
$1056.79 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 80A 3-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, LOAD SIDE LUGS ONLY (TC1GG20) WIRE RANGE 8 - 1/0 AWS (CU/AL). DIMENSIONS (W x H x D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB3B080B
UPC: 783643414358
Item #: 315078
Available to Order
$4945.96 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 20A 3-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, LOAD SIDE LUGS ONLY (TC1Q1) WIRE RANGE 14 - 10 AWS (CU/AL). DIMENSIONS (W x H x D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB3B020B
UPC: 783643414266
Item #: 97144
Available to Order
$4213.42 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGB FRAME WITH STANDARD BREAKING CAPACITY. 20A 2-POLE (14KAIC AT 600Y/347V) (25KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, LOAD SIDE LUGS ONLY (TC1Q1) WIRE RANGE 14 - 10 AWS (CU/AL). DIMENSIONS (W x H x D) IN 2 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGB2B020B
UPC: 783643414112
Item #: 394527
Available to Order
$3218.39 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED NGG FRAME WITH STANDARD BREAKING CAPACITY. 40A 3-POLE (14KAIC AT 600Y/347V)(25KAIC AT 480V). SPECIAL FEATURES MOUNTS ON DIN RAIL / SCREW, LINE AND LOAD SIDE LUGS (TC1GG20) WIRE RANGE 8 - 1/0 AWS (CU/AL). DIMENSIONS (W x H x D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: NGG3B040L
UPC: 783643413832
Item #: 1273493
Available to Order
$5352.55 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Type QP/MP, 2-Pole, 120/240VAC are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QP/MP Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 80A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: Q280H
UPC: 783643226142
Item #: 824829
Available to Order
$328.82 each
Availability
Location Available Qty
Siemens
BREAKER 45A 2P 120/240V 22K BLH HIGH INT.
MFR: Siemens
MFR #: B245H
UPC: 783643000926
Item #: 235326
Available to Order
$773.72 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V AFCI Circuit Breakers - 2-Pole, AFCI - BAF, 10KAIC, 120/240VAC are Circuit ProtectionMolded Case Circuit Breakers. Type BAF Special Features CAFCL Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 20A Trip Range Thermal Magnetic Number Of Poles 2P Connection PLUG-IN Material COMPOSITE Length 3 Width 2 Height 3.5
MFR: Siemens
MFR #: B220AFC
UPC: 040892150698
Item #: 394894
Available to Order
$2432.25 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-release 2.8...4a, n-release 52a, screw connection, standard sw. capacity
MFR: Siemens
MFR #: 3RV20111EA10
UPC: 662643923926
Item #: 725197
Available to Order
$637.38 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-release 11...16a, n-release 208a, screw connection, standard sw. capacity
MFR: Siemens
MFR #: 3RV20114AA10
UPC: 662643924220
Item #: 614968
Available to Order
$740.19 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-rel. 1.4...2a, n-release 26a, spring-l. connection standard sw. capacity
MFR: Siemens
MFR #: 3RV20111BA20
UPC: 662643921854
Item #: 1229083
Available to Order
$637.38 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Type QS Breakers are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QSH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 150A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: QS2150H
UPC: 783087935303
Item #: 271335
Available to Order
$1162.50 each
Availability
Location Available Qty
Siemens
Circuit breaker size S00 for motor protection, CLASS 10 A-release 2.2...3.2 A Nrelease 42 A screw terminal Standard switching capacityCircuit breaker size S00for motor protection, CLASS 10 A-release 2.2...3.2 A N release 42 A screw terminal Standard switching capacity
MFR: Siemens
MFR #: 3RV20111DA10
UPC: 662643921939
Item #: 614973
Available to Order
$637.38 each
Availability
Location Available Qty
Siemens
ACC_CIRCUIT_BREAKER 3RA2921-1AA00-Link Module_3RA29 21-1AA00
MFR: Siemens
MFR #: 3RA29211AA00
UPC: 662643904734
Item #: 1088947
Available to Order
$57.01 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-rel.1.1...1.6a, n-release 21a, spring-l. connection standard sw. capacity
MFR: Siemens
MFR #: 3RV20111AA20
UPC: 662643921809
Item #: 1244452
Available to Order
$613.08 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-rel. 0.55...0.8a, n-release10 a screw connection, standard sw. capacity
MFR: Siemens
MFR #: 3RV20110HA10
UPC: 662643921632
Item #: 1269471
Available to Order
$577.57 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-rel.1.8...2.5a, n-release 33a, screw connection, standard sw. capacity
MFR: Siemens
MFR #: 3RV20111CA10
UPC: 662643921885
Item #: 821359
Available to Order
$637.38 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-rel. 0.14...0.2a, n-release2.6a, screw connection, standard sw. capacity
MFR: Siemens
MFR #: 3RV20110BA10
UPC: 662643921335
Item #: 440634
Available to Order
$534.58 each
Availability
Location Available Qty
Siemens
Switch_MOTOR 3RV2021-4CA10-3RV2021-4CA10_17...22A_22A_460V
MFR: Siemens
MFR #: 3RV20214CA10
UPC: 662643924374
Item #: 889097
Available to Order
$820.56 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Type QS Breakers are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QSH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 200A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: QS2200H
UPC: 783087935310
Item #: 262123
Available to Order
$838.74 each
Availability
Location Available Qty
Siemens
Switch_MOTOR 3RV2021-4BA10-3RV2021-4BA10_14...20A_20A_460V
MFR: Siemens
MFR #: 3RV20214BA10
UPC: 662643924329
Item #: 796762
Available to Order
$770.09 each
Availability
Location Available Qty
Siemens
3RA1921-1da00 3ra-verbindungsbaustein, elektrisch und mechanisch, fuer 3RV1.2 und 3rt101 AC- und DCbetaetigung (einzelstueckverpackung)
MFR: Siemens
MFR #: 3RA1921-1DA00
UPC: 040892731057
Item #: 686640
Available to Order
$75.70 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-release 9..12.5a, n-release 156a, screw connection, standard sw. capacity
MFR: Siemens
MFR #: 3RV20111KA10
UPC: 662643924176
Item #: 614985
Available to Order
$714.02 each
Availability
Location Available Qty
Siemens
24V DC STORED ENERGY OPERATOR VL160X, VL160, VL250, ACCESSORY FOR
MFR: Siemens
MFR #: 3VL9300-3MJ00
UPC: 040892626094
Item #: 1252490
Available to Order
$15554.30 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s0, for motor protection, class 10, a-release 27...32a, n-release 400a, screw connection, standard sw. capacity
MFR: Siemens
MFR #: 3RV20214EA10
UPC: 662643924473
Item #: 889099
Available to Order
$1186.92 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 BQD/NGB 3-POLEHNDLE TIE AND PADLOCK
MFR: Siemens
MFR #: BQDHT3
UPC: 662643164503
Item #: 177378
Available to Order
$177.56 each
Availability
Location Available Qty
Siemens
CIRCUIT BREAKER 230V 6KA,1+N-POLE C, 1A, D=70MM
MFR: Siemens
MFR #: 5SY6501-7
UPC: 040892554991
Item #: 1138408
Available to Order
$367.29 each
Availability
Location Available Qty
Siemens
Switch motor -3RV2011-1ka15
MFR: Siemens
MFR #: 3RV20111KA15
UPC: 662643924183
Item #: 540818
Available to Order
$859.81 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Type QS Breakers are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type HQS Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 150A Trip Range Thermal Magnetic Interrupt Rating 65 AIC Number Of Poles 2P
MFR: Siemens
MFR #: QS2150HH
UPC: 783087935525
Item #: 1224633
Available to Order
$1605.00 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-release 0.11...0.16a,n-release2.1a screw connection, standard sw. capacity
MFR: Siemens
MFR #: 3RV20110AA10
UPC: 662643919639
Item #: 1293379
Available to Order
$534.58 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for motor protection, class 10, a-release 4.5...6.3a, n-release 82a screw connection, standard sw. capacity w. transverse aux. switch 1NO+1NC
MFR: Siemens
MFR #: 3RV20111GA15
UPC: 662643924039
Item #: 1094295
Available to Order
$785.05 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Type QS Breakers are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QSH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 125A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: QS2125H
UPC: 783087935297
Item #: 917579
Available to Order
$1162.50 each
Availability
Location Available Qty
Siemens
Circuit-breaker sz s00, for transformer prot. a-release 2.2...3.2a, n-release 65a screw connection, standard sw. capacity
MFR: Siemens
MFR #: 3RV24111DA10
UPC: 662643922295
Item #: 1138425
Available to Order
$704.67 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Main Breakers - Type QS Breakers are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QSHH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 125A Trip Range Thermal Magnetic Interrupt Rating 42AIC Number Of Poles 2P
MFR: Siemens
MFR #: QSH2125
UPC: 783087935341
Item #: 1294830
Available to Order
$927.13 each
Availability
Location Available Qty
Siemens
116264A16 EQ9684
MFR: Siemens
MFR #: MBK175
UPC: 662643673937
Item #: 238162
Available to Order
$3311.30 each
Availability
Location Available Qty
Siemens
Switch_MOTOR 3RV2021-4AA10-3RV2021-4AA10_11...16A_16A_460V
MFR: Siemens
MFR #: 3RV20214AA10
UPC: 662643924275
Item #: 723323
Available to Order
$770.09 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Duplex, Triplex, Quadplex are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. BREAKER(1)30A 2P/(1)20A 2P 10K NON-CTLQT
MFR: Siemens
MFR #: Q23020CT2NC
UPC: 887621024352
Item #: 522480
In Stock -
Phone: 1-855-999-2372 Email Contact Us
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED LGB FRAME WITH VERY HIGH BREAKING CAPACITY. 60A 3-POLE (14KAIC AT 600Y/347V) (65KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD,LOAD SIDE LUGS ONLY (TC1GG20) WIRE RANGE 8 - 1/0 AWS (CU/AL). DIMENSIONS (W x Hx D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: LGB3B060B
UPC: 887621220297
Item #: 328648
Available to Order
$6217.19 each
Availability
Location Available Qty
Siemens
1/2 IN. TWIN CIRCUIT BREAKER
MFR: Siemens
MFR #: Q2030NC
UPC: 662643717662
Item #: 128612
Available to Order
$308.16 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED LGB FRAME WITH VERY HIGH BREAKING CAPACITY. 40A 3-POLE (14KAIC AT 600Y/347V) (65KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD,LOAD SIDE LUGS ONLY (TC1GG20) WIRE RANGE 8 - 1/0 AWS (CU/AL). DIMENSIONS (W x Hx D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: LGB3B040B
UPC: 887621220266
Item #: 394453
Available to Order
$6217.19 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED LGB FRAME WITH VERY HIGH BREAKING CAPACITY. 100A 3-POLE (14KAIC AT 600Y/347V) (65KAIC AT 480Y/277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, LOAD SIDE LUGS ONLY (TC1GG20) WIRE RANGE 8 - 1/0 AWS (CU/AL). DIMENSIONS (W x H x D) IN 3 x 5.4 x 2.8.
MFR: Siemens
MFR #: LGB3B100B
UPC: 887621220334
Item #: 394459
Available to Order
$6522.56 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE PANELBOARD MOUNT G FRAME CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. UL LISTED LGB FRAME WITH VERY HIGH BREAKING CAPACITY. 30A 1-POLE (14KAIC AT 347V) (65KAIC AT 277V). SPECIAL FEATURES MOUNTS ON PANELBOARD, LOAD SIDELUGS ONLY (TC1Q1) WIRE RANGE 14 - 10 AWS (CU/AL). DIMENSIONS (W x H x D) IN 1 x5.4 x 2.8.
MFR: Siemens
MFR #: LGB1B030B
UPC: 887621219949
Item #: 394443
Available to Order
$2288.56 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.