3BP155.41 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 3BP155.41 is part of the System 2005 Controllers series and features a lithium backup battery with a capacity of 950 mAh and 3 V. It provides a main rack capacity of 1 power supply and 4 system or I/O slots, with an IP20 protection rating and overall dimensions of 240 mm width, 165 mm height, and 23 mm depth.
Internal Product Review
The 3BP155.41 is a B & R Automation System 2005 controller with a 6-slot architecture and IP20 protection for clean cabinet integration. An included 950 mAh backup battery supports dependable memory retention during service interruptions. Main rack capacity for 1 PS + 4 system/I/O positions makes this controller a well-balanced choice for compact machine control.
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Product Description:
The 3BP155.41 is a controller back-plane manufactured by B & R Automation for the System 2005 Controllers series. It forms the mechanical and electrical backbone of a compact PLC rack, giving power-supply, CPU, and I/O modules a common bus and mounting interface so that machine builders can centralize logic, motion, and safety functions inside an industrial cabinet.
This rack ships with a backup battery already installed; the cell uses lithium chemistry, stores 950 mAh of charge, and delivers a nominal 3 V to maintain memory when the main supply is off. Protection against touch and particle ingress is classified as IP20, making the rack suitable for sheltered cabinet zones where no water jets are present. Six module slots are available, a count identified as 6, so the engineer can insert CPU, communication, or specialty cards without exceeding the internal bus drive capability. The main rack can hold one power-supply and four system or I/O modules, and the same limit applies to the remote expansion back-planes that this unit supports. Because the battery is field-replaceable, periodic maintenance can be planned around its expected discharge curve rather than unplanned memory loss.
Mechanical layout parameters define enclosure planning. The frame width is 240 mm, height is 165 mm, and depth measures 23 mm; these dimensions keep the assembly slim enough for shallow control panels yet tall enough for standard screw-terminal modules. Lateral airflow is protected by a required side clearance of 20 mm on each flank, preventing thermal buildup around densely loaded racks. For distributed installations, the integrated bus allows an additional segment with an 1 PS + 4 I/O expansion capacity without extra cabling. These proportions and spacing rules simplify cabinet layouts while leaving room for wire ducts and service loops.
