Siemens 6ES5700-0LB11 Mounting Rack

This mounting rack holds SIMATIC S5 modules in a rigid industrial frame. It provides both mechanical support and backplane connectivity for all inserted units. Therefore, this component forms the backbone of any S5-based automation system.

Physical Dimensions and Weight Specifications

The Siemens 6ES5700-0LB11 features a rugged steel construction for heavy-duty use. Its total width accommodates 4 standard slots for S5 modules. The rack depth reaches 290 mm including the backplane assembly. Consequently, technicians can mount this unit inside standard 19-inch cabinets.

Interface Types and Backplane Layout

The Siemens 6ES5700-0LB11 incorporates a passive backplane with 4 module connectors. Each slot uses a 20-pin DIN 41612 connector for power and data. Two additional connectors at the left end handle external cable attachments. Hence, users can expand the system by linking multiple racks together.

Component Count and Structural Elements

This mounting rack contains one steel chassis with powder-coated finish. The chassis holds 4 backplane connectors soldered onto a PCB. You will also find 4 guide rails for aligning inserted modules. An integrated grounding bus connects each slot to the protective earth terminal.

Energy Distribution and Current Capacity

The Siemens 6ES5700-0LB11 distributes 5V and 24V power across all 4 slots. Its backplane traces carry up to 6A total for the 5V rail. The 24V rail handles up to 3A for field electronics. Therefore, this rack supports mixed I/O and CPU configurations without external power distribution.

Installation Flexibility and Rack Linking

Users can mount this rack horizontally or vertically per application needs. Two side flanges provide screw holes for cabinet attachment. A removable top cover simplifies access to the backplane screws. This design reduces installation time for system integrators and maintenance staff.