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Siemens SIMATIC S5 185U 6ES5185-3UA21 Expansion Unit - 21 Slots

Name: Siemens 6ES5185-3UA21
Brand: Siemens
SKU: 6ES5185-3UA21
Availability: InStock

Siemens SIMATIC S5 185U Expansion Unit with 21 slots and 24V DC PSU.

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ManufacturerSiemens

Part number6ES5185-3UA21

System SIMATIC S5 185U

Type Expansion Unit

Slots 21

Power Supply 24V DC Input, 5V 18A Output

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21 Expansion Slots For SIMATIC S5 185U Includes Fan 5V 18A Power Supply Module Expansion Legacy System Support

Product description

The Siemens SIMATIC S5 185U Expansion Unit (6ES5185-3UA21) provides an additional 21 slots for expanding the capacity of the SIMATIC S5 185U PLC system. This unit includes an integrated fan for cooling and is equipped with a 24V DC power supply, delivering 5V at 18A. It is designed to accommodate additional I/O modules or communication processors.

This expansion unit is essential for users of the Siemens SIMATIC S5 185U PLC who require more input/output capacity or wish to add further functionality to their control system. It is commonly found in industrial automation, process control, and manufacturing applications where the S5 platform is still operational.

Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 6ES5185-3UA21. We are committed to providing essential components for industrial automation, including parts for legacy systems like the SIMATIC S5. Trust Stanlo Automation for reliable surplus parts and expert support.

Technical specifications

System	SIMATIC S5 185U
Type	Expansion Unit
Slots	21
Power Supply	24V DC Input, 5V 18A Output
Features	Integrated Fan
Part Number	6ES5185-3UA21

Common applications

Industrial Automation

PLC Systems

Manufacturing Control

Process Automation

SIMATIC S5 Upgrades

Compatible systems

Siemens SIMATIC S5 185U PLC systems

Also known as

SIMATIC S5 185U Expansion Siemens 21 Slot Expansion 6ES5185-3UA21 Unit

Replaces / compatible with

This is an expansion unit for the Siemens SIMATIC S5 185U PLC, allowing for increased module capacity. It is not a direct replacement for PLC CPUs or other module types.

Technical note

Expert tip

Ensure adequate power is supplied to the 24V DC input of this expansion unit to correctly power the 5V rail and connected modules.

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Frequently asked questions

How many slots does the Siemens 6ES5185-3UA21 expansion unit provide?

The Siemens SIMATIC S5 185U Expansion Unit, part number 6ES5185-3UA21, provides 21 slots for additional I/O modules or other compatible cards within the S5 185U system. It also includes a fan and a 5V 18A power supply.