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Marvo Part ID: MV-2EA3

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Specification Description
Part Number 3BP155.4
Alternative Part Number 3BP1554
Manufacturer B&R
Dimensions (H x W x D) 240 x 23 x 165 mm
Number of Slots 6
Certification C-UL-US
Backup Battery Type Lithium, 3 V / 950 mAh (for models with .41 suffix)
Backup Battery Reference 0AC201.9 (for models with .41 suffix)
Storage Temperature -20 to +70 °C (without battery), -20 to +60 °C (with battery), -20 to +60 °C (battery alone)
Humidity Range 0 to 95% (non-condensing)
Commodity Code 853710

Commonly Asked Questions

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Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.


What countries can Marvo deliver to?

Marvo currently delivers to the United Kingdom (excluding Northern Ireland), the United States of America and Germany. If you cannot find your delivery address at checkout, this is most likely because Marvo does not currently deliver to this location. There are ongoing efforts to make Marvo accessible to a global market, keep your eyes peeled as our service expands to new locations. All orders are sold with a streamlined delivery process ensuring that you get your part, fast. Marvo is designed to offer you quick, easy and reliable access to critical components and uses well established global shipping services, including but not limited to DHL, UPS and FedEx.


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Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services.  Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.


Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.


Peace of mind with every purchase


Marvo Approved

A seal of quality that ensures each part is fully inspected, every time. Purchase with confidence thanks to Marvo Approved.


Full warranty

All parts are covered by a comprehensive warranty. If something goes wrong, I’ll put it right.


Priority delivery

Advanced tracking and a streamlined delivery process ensure that you get your part, fast.


Committed to you

Engineered to ensure that you always have a quick, easy and reliable place to source automation and control components.

3BP155.4 Product Description

The B&R 3BP155.4 module rack is a compact and robust backplane designed for the integration of various control system components. With dimensions of 240 x 23 x 165 mm, this module rack is engineered to accommodate up to 6 slots, making it an ideal solution for space-constrained applications. Its sturdy construction ensures reliable operation in industrial environments, while the integrated bus system facilitates seamless communication between mounted modules.

This backplane is part of the B&R 2005 series, known for its flexibility and ease of use. It supports a range of modules, including CPU units, I/O modules, and power supply units, allowing for customised configurations tailored to specific automation needs. The 3BP155.4 is designed with user convenience in mind, featuring straightforward installation and maintenance processes.

Suitable for a variety of industrial applications, the B&R 3BP155.4 module rack is a testament to B&R's commitment to quality and innovation in automation technology. Its design prioritises efficient use of space without compromising on functionality or performance, making it a valuable addition to any control system setup.

Frequently Asked Questions

What are the dimensions of the module rack?

The module rack has dimensions of 240 mm in width, 23 mm in depth, and 165 mm in height.

How many slots does the module rack have?

The module rack is equipped with 6 slots for inserting various modules.

Can this module rack be used as both a main chassis and an extension chassis?

Yes, the module rack can function as either a main chassis or an extension chassis, with the slot usage varying accordingly.

What type of modules can be inserted into the module rack?

The module rack can accommodate system modules or I/O modules, depending on whether it's used as a main chassis or an extension chassis.

Is there a requirement for the number of occupied slots in the module rack?

It is recommended to use the smallest module rack possible to minimise the number of unoccupied slots. Any unoccupied slots should be filled with blanking modules.

Does the module rack come with a temporary backup battery?

There are versions of the module rack, specifically the 3BP155.41, that include a temporary backup battery for centralised data retention.

What are the environmental storage conditions for the module rack?

The module rack without a lithium battery should be stored in temperatures ranging from -20 to +70 °C, and with a lithium battery from -20 to +60 °C.

How often should the temporary backup battery be replaced?

The temporary backup battery in the module rack should be replaced every 4 years to ensure continuous operation.

Can the temporary backup battery be replaced while the system is powered?

The battery is designed to be replaceable with the system powered or unpowered, but for safety reasons, it is recommended to replace the battery when the system is not powered.

What should be done with the module rack's lithium battery once it is depleted?

Depleted lithium batteries are not biodegradable and must be disposed of in accordance with local environmental regulations.