Siemens 6ES5182-3KB61 Expansion Unit SIMATIC S5-115U 4-Slot

Technical Overview

The 6ES5182-3KB61 expansion unit extends the I/O capacity of SIMATIC S5-115U central controllers. This unit connects to the main rack via an interface cable, adding up to 4 additional slots. It accommodates digital and analog I/O modules, communication processors, and function modules. The integrated power supply provides the necessary voltage for all installed modules.

Key Technical Specifications

Parameter	Specification
Brand	Siemens
Model Number	6ES5182-3KB61
Product Type	Expansion Unit
Series	SIMATIC S5
Slot Count	4 slots
Connection	Interface cable to central controller
Power Supply	Integrated, AC 120/230V
Module Compatibility	S5-115U modules
Approx. Weight	1.5 kg

System Expansion and Slot Architecture

The 6ES5182-3KB61 provides 4 additional slots for user-selectable modules. This expansion allows system integrators to add more I/O channels or special function modules. Consequently, engineers can adapt the automation system to growing application needs.

Communication with Central Controller

An interface cable links the expansion unit to the central rack, enabling seamless data exchange. This connection carries both power and signal information between the units. The system treats the expansion modules as part of the central I/O configuration.

Installation and Compatibility

The expansion unit mounts directly on a 35mm DIN rail or within a control cabinet. It works exclusively with S5-115U modules and central controllers. Users can easily install the unit without modifying the existing central rack.