"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
44 in Stock. More available 08/10/2026
$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
12 in Stock. More available 07/22/2026 and 08/13/2026
$206.28/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
16 in Stock. More available 07/22/2026 and 08/10/2026
$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
15 in Stock. More available 07/22/2026 and 08/10/2026
$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
20 available today. Please contact inside sales for delivery information.
$108.78/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
425 in Stock. More available 08/10/2026
$26.33/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
27 in Stock. More available 07/22/2026 and 08/10/2026
$206.28/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
77 in Stock. More available 07/22/2026 and 08/10/2026
$60.81/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
36 in Stock. More available 08/10/2026
$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
6 in Stock. More available 08/10/2026
$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
33 in Stock. More available 08/10/2026
$56.14/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
60 in Stock. More available 08/10/2026
$28.08/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
18 in Stock. More available 08/10/2026
$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 08/10/2026
$251.17/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
36 in Stock. More available 07/22/2026 and 08/10/2026
$63.52/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
45 in Stock. More available 08/10/2026
$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
12 in Stock. More available 08/13/2026
$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
41 in Stock. More available 07/25/2026 and 08/10/2026
$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
35 in Stock. More available 08/10/2026
$63.52/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
89 in Stock. More available 08/13/2026
$60.81/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
44 in Stock. More available 08/10/2026
$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
12 in Stock. More available 07/22/2026 and 08/13/2026
$206.28/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
16 in Stock. More available 07/22/2026 and 08/10/2026
$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
15 in Stock. More available 07/22/2026 and 08/10/2026
$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
20 available today. Please contact inside sales for delivery information.
$108.78/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
425 in Stock. More available 08/10/2026
$26.33/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
27 in Stock. More available 07/22/2026 and 08/10/2026
$206.28/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
77 in Stock. More available 07/22/2026 and 08/10/2026
$60.81/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
36 in Stock. More available 08/10/2026
$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
6 in Stock. More available 08/10/2026
$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
33 in Stock. More available 08/10/2026
$56.14/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
60 in Stock. More available 08/10/2026
$28.08/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
18 in Stock. More available 08/10/2026
$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 08/10/2026
$251.17/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
36 in Stock. More available 07/22/2026 and 08/10/2026
$63.52/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
45 in Stock. More available 08/10/2026
$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
12 in Stock. More available 08/13/2026
$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
41 in Stock. More available 07/25/2026 and 08/10/2026
$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
35 in Stock. More available 08/10/2026
$63.52/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
89 in Stock. More available 08/13/2026
$60.81/EA















