Siemens 6ES5350-3KA41 Memory Module

Technical Overview

The Siemens 6ES5350-3KA41 is a memory expansion module for the SIMATIC S5-115U programmable controller series. This module provides additional storage capacity for user programs, system data, and documentation text. It features a plug-in EPROM submodule that simplifies program backup and replacement. A built-in memory backup battery retains data during power outages. The module mounts directly into the S5-115U chassis, occupying one slot.

Technical Specifications

Parameter	Specification
Manufacturer	Siemens
Model Number	6ES5350-3KA41
Product Type	Memory Module
System Compatibility	SIMATIC S5-115U
Memory Type	EPROM with battery backup
Memory Capacity	8 KB
Battery Type	3.6V lithium (replaceable)
Battery Life	Approx. 5 years (typical)
Programming Language	STEP 5
Submodule	Plug-in EPROM submodule included
Slot Requirement	1 slot in S5 chassis
Power Consumption	0.2 W (typical)
Operating Temperature	0°C to +60°C
Storage Temperature	-40°C to +85°C
Humidity	5% to 95% RH (non-condensing)
Certifications	CE, UL
Country of Origin	Germany

Key Features

Non-Volatile Memory Storage – The lithium battery preserves programs and system data during power interruptions.

Plug-in Submodule Design – Users can easily remove the EPROM submodule for program backup or system upgrades.

Low Power Consumption – The module draws minimal power, reducing heat generation in the control cabinet.

Simple Installation – The module plugs directly into the S5-115U chassis without special tools.

Long Battery Life – The replaceable battery provides approximately five years of reliable data retention.

STEP 5 Compatibility – The module works seamlessly with the standard Siemens programming environment.

Applications

The Siemens 6ES5350-3KA41 suits manufacturing automation, process control, and material handling systems. It provides reliable program storage for S5-115U applications requiring extra memory capacity.