Built for advanced control, the Siemens B240H00S01 includes a factory-installed 120VAC shunt trip mechanism that enables remote circuit disconnection. This 2-pole, 40A miniature circuit breaker provides standard thermal-magnetic protection with a 22kAIC rating at 120/240VAC. It features a secure bolt-on connection designed specifically for Siemens P1 commercial panelboards. The unit is HACR rated, making it suitable for heating, air conditioning, and refrigeration applications.
HACR Rated, Common Trip, High Interrupting Capacity
Product FAQs
7 answers
Which panelboards accept the Siemens B240H00S01 circuit breaker?
This bolt-on breaker is specifically designed for installation in Siemens P1 commercial panelboards.
What does the 00S01 suffix mean on this Siemens B-series breaker?
The 00S01 suffix indicates the inclusion of a factory-installed 120VAC shunt trip mechanism. This allows the breaker to be tripped remotely by an external voltage signal.
How does the B240H differ from a standard Siemens B240 breaker?
The H designation indicates a BLH frame with a higher interrupting capacity. While the standard B240 is rated for 10kAIC, the B240H provides a 22kAIC rating at 120/240VAC.
What applications typically require the 120V shunt trip found on the B240H00S01?
Shunt trips are commonly used to tie the circuit breaker into emergency stop systems, fire alarms, or equipment safety interlocks, allowing the circuit to be disconnected automatically during a fault or emergency event.
Is the B240H00S01 interchangeable with plug-on Q-series breakers?
No. The B240H00S01 is a BLH frame breaker with a bolt-on connection for commercial P1 panelboards. It cannot be used in residential load centers that require plug-on Q-series or QP breakers.
What is the base catalog number for this breaker without the shunt trip?
If you do not require the 120VAC shunt trip mechanism, the standard 40A, 2-pole, 22kAIC bolt-on breaker is catalog number B240H.
Is the B240H00S01 suitable for HVAC applications?
Yes, this breaker is HACR rated, making it approved for use with heating, air conditioning, and refrigeration equipment.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 108 reviews.
4.9
Rated 4.9 out of 5 stars
Based on 108 reviews
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Reviews Summary
Generated by AI from 95 most recent customer reviews
Last updated 3/6/26
Customers say these electrical breakers and components work as expected and arrive quickly. Many reviews mention fast shipping, competitive pricing, and reliable products that fit perfectly. Users find the website easy to navigate and appreciate the wide selection of in-stock items. Common feedback includes satisfaction with timely delivery and professional customer service. While most praise the quality and value, one customer received used breakers instead of new ones as ordered. Overall, reviewers consistently highlight the combination of good prices, fast service, and dependable electrical components.
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