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Siemens SIMATIC S5 Central Unit 6ES5188-3UA11

Name: Siemens 6ES5188-3UA11
Brand: Siemens
SKU: 6ES5188-3UA11
Availability: InStock

Siemens SIMATIC S5 Central Unit for 135U/155U systems, 21 slots.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerSiemens

Part number6ES5188-3UA11

System SIMATIC S5 135U/155U

Slots 21

Power Input 230/115 V AC

Power Output 5 V, 18 A

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12-month warranty

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Veteran-owned

CAGE: 9NK75

21 expansion slots For SIMATIC S5 135U/155U Wide AC input voltage Robust construction Legacy system component

Product description

The Siemens SIMATIC S5 Central Unit 6ES5188-3UA11 is a backplane or rack component for the SIMATIC S5 series programmable logic controllers, specifically for the 135U/155U models. This unit provides 21 slots for various I/O and function modules and operates on a 230/115 V AC power supply, delivering 5V and 18A. It is supplied without a CPU and manual, intended for system expansion or replacement where these components are already present.

This central unit is crucial for building or expanding SIMATIC S5 control systems used in older industrial automation setups. It finds applications in legacy manufacturing plants, water treatment facilities, and other industries that still rely on the robust and widely deployed S5 platform.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens SIMATIC S5 Central Unit 6ES5188-3UA11. We are committed to providing reliable components to keep your legacy automation systems operational, ensuring minimal disruption to your production processes.

Technical specifications

System	SIMATIC S5 135U/155U
Slots	21
Power Input	230/115 V AC
Power Output	5 V, 18 A
Condition	W/O CPU, W/O MANUAL

Common applications

Industrial automation

Legacy PLC systems

Manufacturing control

Process control

Plant retrofits

Compatible systems

SIMATIC S5 135U CPUs SIMATIC S5 155U CPUs Various SIMATIC S5 I/O modules

Also known as

SIMATIC S5 135U/155U Central Unit; Siemens S5 Rack; 6ES5188-3UA11 Backplane

Replaces / compatible with

This central unit is a direct replacement for existing SIMATIC S5 135U/155U central units or can be used to expand the capacity of these systems.

Technical note

Expert tip

This central unit requires a compatible SIMATIC S5 CPU (e.g., 135U or 155U series) to function within an operational system.

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Frequently asked questions

What is the power requirement for the Siemens SIMATIC S5 Central Unit 6ES5188-3UA11?

The Siemens SIMATIC S5 Central Unit 6ES5188-3UA11 operates with a wide AC input voltage range of 230/115 V AC. It provides 5V and 18A to the modules installed in its 21 slots.