

SIEM B240
MFG #B240
UPC #78364326357
SKU #48726
27 in Stock
Stock Item
More available 12/24/2025 and 01/12/2026
$59.84 per EA (1) / EA
Product description
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 AWG Wire, Bolt-On/Panel Mounting, 40 deg C, 3 in L x 2 in W x 4 in H Dimensions
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 AWG Wire, Bolt-On/Panel Mounting, 40 deg C, 3 in L x 2 in W x 4 in H Dimensions
- For electrical distribution applications
- 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 AWG Wire, Bolt-On/Panel Mounting, 40 deg C, 3 in L x 2 in W x 4 in H Dimensions
- BREAKER CKT CASE MLD 120/240VAC 40A 10KA
- Product Catalog Page(s)
Specification Sheet
- HACR Rated|UL 489
- Brand: Siemens Energy (ITE)




