"B" Bolt-on Breakers (120/240V)
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Part #SIEM B250 50AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 50 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 8 to 6 AWG, 8 to 4 A
MFG #B250
42 in Stock. More available 05/11/2026
$62.14/EA
Part #SIEM B350 50AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 50 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 8 to 6 AWG, 8 to 4 AWG Wire,
MFG #B350
23 in Stock. More available 04/24/2026 and 05/16/2026
$206.28/EA
Part #SIEM BF120A 20AMP 1POLE 120VAC GFCI BOLT ON CIRCUIT BREAKER Siemens Ground Fault Circuit Breaker, Type GFCI Class A, 120 VAC, 20 A, 10 kA Interrupt, BLF2 Frame, Thermal Magnetic Trip, 5 mA Trip, 1 Pole, Bolt-On Connection, Panelboard Mounting
MFG #BF120A
11 in Stock. More available 04/24/2026 and 05/11/2026
$108.78/EA
Part #SIEM B130 30AMP 1POLE 120VAC BOLT ON CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type BL, 120 VAC, 30 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Toggle Actuator, 14 to 6 AWG, 12 to 6 AWG Wire, Bolt
MFG #B130
63 in Stock. More available 05/11/2026
$28.08/EA
Part #SIEM B3100 100AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 100 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 4 to 1/0 AWG, 2 to 1/0 AW
MFG #B3100
18 in Stock. More available 05/11/2026
$282.66/EA
Part #SIEM B360 60AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 60 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 8 to 4 AWG, 8 to 2 AWG Wire,
MFG #B360
31 in Stock. More available 04/24/2026 and 05/11/2026
$206.28/EA
Part #SIEM B115 15AMP 1POLE 120VAC BOLT ON CIRCUIT BREAKER 10K AIC Siemens Molded Case Circuit Breaker, Type BL, 120 VAC, 15 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to 10 AWG
MFG #B115
71 in Stock. More available 05/11/2026
$28.08/EA
Part #SIEM B215 15AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 15 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to
MFG #B215
26 in Stock. More available 05/11/2026
$63.52/EA
Part #SIEM B320 20AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10K AIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 14 to 10 AWG, 12 to 10 AWG
MFG #B320
22 in Stock. More available 04/24/2026 and 05/11/2026
$201.80/EA
Part #SIEM B260 60AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 60 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 8 to 4 AWG, 8 to 2 A
MFG #B260
25 in Stock. More available 05/11/2026
$63.52/EA
Part #SIEM B330 30AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10K AIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 30 A, 60 Hz Frequency, 10 kA Interrupt, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 12 to 6 AWG Aluminum, 14 to 6 AWG Copper
MFG #B330
25 in Stock. More available 04/24/2026 and 05/11/2026
$206.28/EA
Part #SIEM B230 30AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 30 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 14 to 6 AWG, 12 to 6
MFG #B230
121 in Stock. More available 05/11/2026
$60.81/EA
Part #SIEM B120 20AMP 1POLE 120VAC BOLT ON CIRCUIT BREAKER TYPE BL 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to
MFG #B120
324 in Stock. More available 04/24/2026 and 05/11/2026
$26.33/EA
Part #SIEM B2100 100AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 100 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 4 to 1/0 AWG, 2 t
MFG #B2100
25 in Stock. More available 05/11/2026
$165.08/EA
Part #SIEM B315 15AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 15 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 14 to 10 AWG, 12 to 10 AWG Wire, Bo
MFG #B315
15 in Stock. More available 05/11/2026
$206.28/EA
Part #SIEM B120H 20AMP 1POLE 120V 22KAIC BOLT ON CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type BLH, 120 VAC, 20 A, 60 Hz Frequency, 22 kA Interrupt, Thermal/Magnetic Trip, 1 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to 10 AWG Wire, Bolt-On/
MFG #B120H
64 in Stock. More available 05/11/2026
$56.14/EA
Part #SIEM B340 40AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10AIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 40 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 8 to 6 AWG, 8 to 4 AWG Wire,
MFG #B340
10 in Stock. More available 05/11/2026
$206.28/EA
Part #SIEM B370 70AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 70 A, 60 Hz Frequency, 10 kA Interrupt, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 8 to 4 AWG, 8 to 2 AWG Wire, Bolt-On/Pane
MFG #B370
4 in Stock. More available 05/11/2026
$251.17/EA
Part #SIEM B220 20AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to
MFG #B220
128 in Stock. More available 04/24/2026 and 05/11/2026
$60.81/EA
Part #SIEM B240 40AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 40 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 8 to 6 AWG, 8 to 4 A
MFG #B240
37 in Stock. More available 04/24/2026 and 05/11/2026
$63.52/EA
Part #SIEM B250 50AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 50 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 8 to 6 AWG, 8 to 4 A
MFG #B250
42 in Stock. More available 05/11/2026
$62.14/EA
Part #SIEM B350 50AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 50 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 8 to 6 AWG, 8 to 4 AWG Wire,
MFG #B350
23 in Stock. More available 04/24/2026 and 05/16/2026
$206.28/EA
Part #SIEM BF120A 20AMP 1POLE 120VAC GFCI BOLT ON CIRCUIT BREAKER Siemens Ground Fault Circuit Breaker, Type GFCI Class A, 120 VAC, 20 A, 10 kA Interrupt, BLF2 Frame, Thermal Magnetic Trip, 5 mA Trip, 1 Pole, Bolt-On Connection, Panelboard Mounting
MFG #BF120A
11 in Stock. More available 04/24/2026 and 05/11/2026
$108.78/EA
Part #SIEM B130 30AMP 1POLE 120VAC BOLT ON CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type BL, 120 VAC, 30 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Toggle Actuator, 14 to 6 AWG, 12 to 6 AWG Wire, Bolt
MFG #B130
63 in Stock. More available 05/11/2026
$28.08/EA
Part #SIEM B3100 100AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 100 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 4 to 1/0 AWG, 2 to 1/0 AW
MFG #B3100
18 in Stock. More available 05/11/2026
$282.66/EA
Part #SIEM B360 60AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 60 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 8 to 4 AWG, 8 to 2 AWG Wire,
MFG #B360
31 in Stock. More available 04/24/2026 and 05/11/2026
$206.28/EA
Part #SIEM B115 15AMP 1POLE 120VAC BOLT ON CIRCUIT BREAKER 10K AIC Siemens Molded Case Circuit Breaker, Type BL, 120 VAC, 15 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to 10 AWG
MFG #B115
71 in Stock. More available 05/11/2026
$28.08/EA
Part #SIEM B215 15AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 15 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to
MFG #B215
26 in Stock. More available 05/11/2026
$63.52/EA
Part #SIEM B320 20AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10K AIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 14 to 10 AWG, 12 to 10 AWG
MFG #B320
22 in Stock. More available 04/24/2026 and 05/11/2026
$201.80/EA
Part #SIEM B260 60AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 60 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 8 to 4 AWG, 8 to 2 A
MFG #B260
25 in Stock. More available 05/11/2026
$63.52/EA
Part #SIEM B330 30AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10K AIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 30 A, 60 Hz Frequency, 10 kA Interrupt, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 12 to 6 AWG Aluminum, 14 to 6 AWG Copper
MFG #B330
25 in Stock. More available 04/24/2026 and 05/11/2026
$206.28/EA
Part #SIEM B230 30AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 30 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 14 to 6 AWG, 12 to 6
MFG #B230
121 in Stock. More available 05/11/2026
$60.81/EA
Part #SIEM B120 20AMP 1POLE 120VAC BOLT ON CIRCUIT BREAKER TYPE BL 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 1 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to
MFG #B120
324 in Stock. More available 04/24/2026 and 05/11/2026
$26.33/EA
Part #SIEM B2100 100AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 100 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 4 to 1/0 AWG, 2 t
MFG #B2100
25 in Stock. More available 05/11/2026
$165.08/EA
Part #SIEM B315 15AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 15 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 14 to 10 AWG, 12 to 10 AWG Wire, Bo
MFG #B315
15 in Stock. More available 05/11/2026
$206.28/EA
Part #SIEM B120H 20AMP 1POLE 120V 22KAIC BOLT ON CIRCUIT BREAKER Siemens Molded Case Circuit Breaker, Type BLH, 120 VAC, 20 A, 60 Hz Frequency, 22 kA Interrupt, Thermal/Magnetic Trip, 1 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to 10 AWG Wire, Bolt-On/
MFG #B120H
64 in Stock. More available 05/11/2026
$56.14/EA
Part #SIEM B340 40AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10AIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 40 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 8 to 6 AWG, 8 to 4 AWG Wire,
MFG #B340
10 in Stock. More available 05/11/2026
$206.28/EA
Part #SIEM B370 70AMP 3POLE 240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 240 VAC, 70 A, 60 Hz Frequency, 10 kA Interrupt, Thermal/Magnetic Trip, 3 Pole, 3 ph, Toggle Actuator, 8 to 4 AWG, 8 to 2 AWG Wire, Bolt-On/Pane
MFG #B370
4 in Stock. More available 05/11/2026
$251.17/EA
Part #SIEM B220 20AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 20 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 14 to 10 AWG, 12 to
MFG #B220
128 in Stock. More available 04/24/2026 and 05/11/2026
$60.81/EA
Part #SIEM B240 40AMP 2POLE 120/240VAC BOLT ON CIRCUIT BREAKER 10KAIC Siemens Molded Case Circuit Breaker, Type BL, 120/240 VAC, 40 A, 60 Hz Frequency, 10 kA Interrupt, 125 A Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, Toggle Actuator, 8 to 6 AWG, 8 to 4 A
MFG #B240
37 in Stock. More available 04/24/2026 and 05/11/2026
$63.52/EA


















