Engineered for commercial and industrial power distribution, the Siemens B35000S01 is a 3-pole, 50A molded case circuit breaker from the BL family. It delivers reliable thermal-magnetic protection for demanding electrical systems. This unit installs into Siemens P1, P2, P3, P4, and P5 panelboards using a standard bolt-on mounting style. It accepts 8-6 AWG copper or 8-4 AWG aluminum wire via lug terminals. Rated for 10kAIC at 240VAC, it includes a factory-installed 120VAC shunt trip.
Can the B35000S01 be installed in a standard residential load center?
No, this is a bolt-on breaker designed specifically for commercial Siemens P1, P2, P3, P4, and P5 panelboards. It will not fit in residential load centers that require plug-on style breakers.
What does the 00S01 suffix indicate on this Siemens BL series breaker?
The 00S01 suffix signifies that the breaker includes a factory-installed 120VAC shunt trip, allowing it to be tripped remotely via a control signal.
What wire sizes are accepted by the lugs on the B35000S01?
The terminal lugs are rated to accept 8 to 6 AWG copper wire or 8 to 4 AWG aluminum wire.
Can the trip settings on the B35000S01 be adjusted in the field?
No, this breaker features a fixed thermal-magnetic trip unit. The long-time and instantaneous (LI) overcurrent protection settings are factory set and cannot be adjusted.
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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 5 star reviews: 34
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Total 4 star reviews: 1
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Total 3 star reviews: 0
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Total 2 star reviews: 0
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Total 1 star reviews: 0
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.