PLCs, Power Supplies & Others

Core Specifications of the Front Connector

The 6ES5490-7LB11 belongs to the Siemens SIMATIC S5 family of front connectors. This wiring accessory links field signals to S5 I/O modules without soldering. Moreover, its screw terminal design simplifies maintenance and module replacement.

Each connector features 16 poles arranged in a single row. Additionally, the unit weighs roughly 0.10 kg with its housing and terminal screws. The body measures 20 mm in width and 45 mm in height, while the 7LB11 suffix defines the terminal layout and strain relief style.

Interface and Mounting Details

The 6ES5490-7LB11 plugs directly into compatible S5 I/O module fronts. Consequently, technicians complete wiring without stripping long cable runs. This connector pairs with standard S5 analog and digital cards. Therefore, it streamlines cabinet assembly and reduces downtime.

The screw terminals accept solid and stranded conductors up to 1.5 mm². Meanwhile, the integrated strain relief protects wires from vibration stress.

Performance and Application Notes

Panel builders choose the 6ES5490-7LB11 for fast, repeatable field wiring. Furthermore, the 16-pole layout matches common S5 I/O channel counts. The connector carries up to 6 A at 250 V AC continuously. Meanwhile, the compact housing fits standard S5 rack clearances.

The connector stores no energy internally, since it serves a purely conductive role. As a result, it adds no electrical load to the circuit.

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