Siemens 6ES5311-7AA11 Connection Module

Why This Connection Module Organizes Your S5 Wiring

This connection module provides a centralized termination point for field wiring. You get a tidy Siemens 6ES5311-7AA11 for SIMATIC S5 I/O systems. It links field devices to the main rack via ribbon cables. Therefore, your cabinet maintains clean and organized wiring throughout.

Technical Specifications and Physical Details

The Siemens 6ES5311-7AA11 features twenty screw terminals for field connections. It connects to the I/O module using a 34-pin flat ribbon cable. This module mounts onto a standard DIN rail. Its dimensions measure approximately 180 mm in width and 80 mm in height. The unit weighs around 0.28 kg for simple installation. This connection module stores no electrical energy whatsoever. Instead, it serves as a purely passive distribution point. Consequently, you need no batteries or capacitors for this component.

Below is the detailed breakdown of the hardware specifications.

Parameter	Specification
Product Model	6ES5311-7AA11
Product Type	Connection Module
Brand	Siemens
Family	SIMATIC S5
Number of Terminals	20 screw terminals
Connection Type	34-pin ribbon cable to I/O module
Mounting Type	DIN rail
Dimensions (W x H)	Approx. 180 x 80 mm
Approx. Weight	0.28 kg
Energy Storage	None (passive distribution)
Component Count	Single terminal block assembly

Installation and Wiring Notes

This module mounts next to your I/O rack for short cable runs. You must use the correct ribbon cable orientation when connecting. The Siemens 6ES5311-7AA11 accepts wire sizes from 0.5 to 2.5 mm². Therefore, strip each wire to 7 mm before inserting into the terminal. Always label both ends of every field cable. Clear identification saves hours during troubleshooting and maintenance.