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3 months ago
B230
Siemens B230 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens B230 is a Type BL molded case circuit breaker designed for panelboard mounting in electrical distribution applications. This 2-pole, bolt-on circuit breaker is rated for 30 A continuous current and 120/240 V AC operation, providing thermal-magnetic trip protection for branch circuits. Built to UL 489 standards, the B230 is suitable for use in compatible Siemens panelboards where compact, reliable circuit protection is required.
With a 10 kA interrupting rating, common-trip configuration, and molded case construction, the B230 is commonly used in commercial, industrial, and facility electrical systems. Its compact 3 in x 3 in x 2 in profile allows installation in space-conscious panel layouts while maintaining dependable overcurrent protection for connected electrical loads.
With a 10 kA interrupting rating, common-trip configuration, and molded case construction, the B230 is commonly used in commercial, industrial, and facility electrical systems. Its compact 3 in x 3 in x 2 in profile allows installation in space-conscious panel layouts while maintaining dependable overcurrent protection for connected electrical loads.
| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Part Number | B230 |
| Product Type | Low voltage molded case circuit breaker |
| Series / Type | Type BL |
| Application | Electrical distribution panelboard circuit protection |
| Mounting Style | Panelboard mounting |
| Connection Type | Bolt-on |
| Number of Poles | 2-pole |
| Rated Current | 30 A |
| Voltage Rating | 120/240 V AC |
| Trip Type | Thermal magnetic |
| Interrupting Rating | 10 kA AIC |
| Standard | UL 489 |
| Product Design | BL 125 A frame miniature circuit breaker format |
| Dimensions | 3 in width x 2 in height x 3 in depth |
| Description | Siemens B230 is a 2-pole, 30 A Type BL bolt-on molded case circuit breaker designed for 120/240 V AC electrical distribution panelboards, providing thermal magnetic circuit protection in a compact low voltage breaker format. |
What type of electrical component is this?
This is a Siemens Type BL molded case circuit breaker for panelboard mounting. It is designed for low-voltage electrical distribution and provides thermal-magnetic circuit protection.
What current rating does this breaker have?
The breaker has a continuous current rating of 30 A.
How many poles does this breaker have?
It is a 2-pole breaker, suitable for applications requiring common-trip protection across two poles.
What voltage rating is this breaker designed for?
The Siemens B230 is rated for 120/240 V AC applications.
What breaker family does this unit belong to?
It belongs to the Siemens Type BL breaker range, which is part of Siemens low-voltage molded case circuit breaker offerings for panelboard use.
What type of trip mechanism does this breaker use?
This breaker uses a thermal-magnetic trip mechanism, combining overload response with magnetic short-circuit response.
What is the interrupting rating of this breaker?
The Type BL version has an interrupting rating of 10 kA RMS symmetrical amperes, commonly referred to as 10 AIC.
What mounting or connection style does this breaker use?
This is a bolt-on breaker, intended for use in compatible Siemens panelboards that accept Type BL bolt-on circuit breakers.
What standard is this breaker approved to?
The breaker is listed to UL 489, the standard commonly applied to molded case circuit breakers used for circuit protection.
What are the approximate physical dimensions?
The listed dimensions are approximately 3 in deep, 2 in high, and 3 in wide.
Is this breaker intended for residential or industrial distribution equipment?
It is generally used in low-voltage electrical distribution equipment, including compatible panelboards in commercial and industrial installations.
What does the Type BL designation indicate?
Type BL identifies the Siemens breaker design family. In this case, it indicates a bolt-on molded case circuit breaker with a 10 kA interrupting rating within the BL range.
Can this breaker be used for 240 V applications?
Yes, the breaker is listed for 120/240 V AC use. Suitability should always be checked against the panelboard labeling and the application requirements.
What wire range is associated with this amperage range?
For BL, BLH and HBL breakers in the 25 A to 35 A range, Siemens literature lists #10 to #8 AWG copper or #10 to #6 AWG aluminum conductor ranges for pressure wire connectors, where applicable.
Is this a plug-in breaker?
No. This is a bolt-on style breaker, meaning it is intended to be mechanically fastened into a compatible panelboard rather than installed as a plug-in device.
- Protecting branch circuits in low-voltage electrical distribution panels
- Use in Siemens panelboards requiring Type BL bolt-on circuit breakers
- Overcurrent protection for 120/240 VAC electrical circuits
- Two-pole circuit interruption for residential, commercial, and light industrial loads
- Protecting HVAC equipment circuits rated up to 30 A
- Power distribution for lighting, receptacle, and small machinery circuits
- Common-trip protection where both poles must disconnect together
- Replacement of compatible 30 A, 2-pole Siemens BL frame breakers
- Electrical panel upgrades where a UL 489 molded case circuit breaker is required
- Protecting control panels, subpanels, and facility power distribution equipment
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
4 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
5 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
5 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
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