Designed for automated control systems, this 40A thermal-magnetic circuit breaker provides standard overcurrent protection alongside remote tripping capabilities. It is well-suited for commercial and industrial environments requiring emergency stop integration. This bolt-on unit installs into Siemens P1, P2, P3, P4, and P5 panelboards. It crosses over with BAB2040 and QOB240 models. The integrated 120VAC shunt trip mechanism allows the breaker to be opened from a remote location.
Which panelboards are compatible with the Siemens B24000S01 circuit breaker?
This bolt-on circuit breaker is designed for installation in Siemens P1, P2, P3, P4, and P5 panelboards.
What does the 00S01 suffix mean on the B24000S01 catalog number?
The 00S01 suffix indicates the inclusion of a factory-installed 120V AC shunt trip accessory. This allows the breaker to be tripped remotely using a 120V control signal, which is commonly used for emergency stop integration.
What is the standard non-shunt trip equivalent of the B24000S01?
If your application does not require a remote shunt trip, the standard replacement is the Siemens B240. Both are 40A, 2-pole, BL-frame bolt-on breakers, but the B240 omits the 120V AC shunt trip mechanism.
Can the B24000S01 be installed in Square D or Eaton panelboards?
No. While it may share similar electrical ratings with Eaton BAB2040 or Square D QOB240 breakers, the Siemens B24000S01 is only UL listed for use in compatible Siemens P1 through P5 panelboards.
How is the shunt trip activated on the B24000S01?
The factory-installed shunt trip must be wired to a separate 120V AC control circuit. When this control circuit is energized, typically via an emergency stop button or automated control system, the internal coil activates and mechanically opens the breaker contacts.
How does the thermal-magnetic trip unit on the B24000S01 operate?
The breaker features a fixed thermal-magnetic trip unit with Long-Time and Instantaneous (LI) functions. The thermal component provides delayed tripping for sustained overloads, while the magnetic component provides instantaneous tripping for severe short circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 35 reviews.
5.0
Rated 5.0 out of 5 stars
Based on 35 reviews
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Total 4 star reviews: 1
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Reviews Summary
Generated by AI from 66 most recent customer reviews
Last updated 8/15/25
Customers say these circuit breakers meet their specifications and perform as expected. Many reviews highlight the quick delivery times and competitive pricing. Frequent comments address the reliable product quality and ease of installation. The ordering process receives praise for its simplicity, with users noting consistent product availability.