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Siemens B135 Molded Case Circuit Breaker
- 35A
- 1 Pole
- Bolt-On
Siemens
B135
Molded Case Circuit Breaker
Brand
Siemens
SKU
B135
Quantity
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Siemens B135 - 35A 1 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial distribution, the Siemens B135 is a 1-pole, 35A molded case circuit breaker from the BL series. It delivers consistent thermal-magnetic protection for branch circuits, safeguarding equipment against overloads and short circuits. Designed for a secure fit, this breaker mounts into Siemens P1, P2, P3, P4, and P5 panelboards. The bolt-on design ensures a stable connection in high-vibration environments. It features a standard 10 kAIC rating at 120/240VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B135 |
| Series | BL |
| Amperage | 35A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Handle Tie |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhich panelboards are compatible with the Siemens B135 circuit breaker?
The Siemens B135 is a bolt-on breaker designed for use in Siemens P1, P2, P3, P4, and P5 commercial panelboards.
Can I install the B135 in a standard Siemens residential load center?
No. The B135 is a BL series bolt-on breaker intended for commercial panelboards. Standard Siemens residential load centers require plug-on breakers, such as the QP series.
What is the plug-on equivalent to the Siemens B135?
The Siemens Q135 is the plug-on equivalent to the B135. It shares the same 35A rating and 1 Pole configuration but features a plug-on mounting style for residential load centers.
What is the difference between the Siemens B135 and the B135H?
The B135 has a standard interrupting rating of 10kAIC at 120/240VAC. The B135H is the high-interrupting version from the BLH series, rated at 22kAIC at 120/240VAC.
Is the Siemens B135 HACR rated?
Yes, the B135 is HACR rated, making it suitable for branch circuit protection of heating, air conditioning, and refrigeration equipment.
Can the Siemens B135 be reverse fed?
Standard Siemens BL series thermal magnetic breakers can be reverse fed unless the breaker terminals are specifically marked with LINE and LOAD. Always verify the physical breaker markings before reverse feeding.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 35 reviews.
Total 5 star reviews: 34 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 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.
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Rating
35 reviews
- TSTom S.Verified BuyerReviewingSiemens B3100 3 Pole Circuit BreakerI recommend this productRated 5 out of 5 stars8/3/26Superbreakers is our go to!
Great prices, great service and quick delivery.
- MGMaggie G.Verified BuyerReviewingSiemens B250 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/24/26Great Service
Came in great condition and in an incredibly timely manner. Will continue superbreakers for all of my orders in the future!
- DBDonnie B.Verified BuyerReviewingSiemens B115 - 15A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/11/26New Breaker
Awesome breaker & Superbreakers is a awesome company!
- BLBrian L.Verified BuyerReviewingSiemens B120 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/4/26Brian
Works great
- JFJoseph F.Verified BuyerReviewingSiemens B120 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/23/26Great value
It was a great value