Siemens 6ES5181-3AA11 Simatic S5 Expansion Units

SKU 6ES5181-3AA11

In stock

12-month warranty
Free returns within 30 days

Manufacturer: Siemens
Product No.: 6ES5181-3AA11
Country of origin:Germany
Product Type: Expansion Units
Barcode: 85389091
Payment: T/T, Western Union
Weight: 3550g
Dimensions: 26.40cm x 30.00cm x 14.20cm
Shipping port: Xiamen
Warranty: 12 months

Description

The 6ES5181-3AA11 is a SIMATIC S5 expansion unit belonging to the S5-135 system family, specifically designated as an expansion unit "A" version without power supply. This robust hardware chassis is engineered to expand legacy Siemens programmable logic controller installations, providing 6 module locations and 1 receptacle for system connectivity. Constructed for heavy-duty industrial control environments, it allows plant engineers to add localized I/O card capacity and maintain older automation infrastructures. Typical industrial applications include legacy manufacturing lines, heavy industrial process control, and metal processing plants relying on vintage SIMATIC S5 architectures. It is fully compatible with standard Siemens SIMATIC S5-135 and S5-155 system backplanes and cabling standards.

Features

Expansion unit "A" version designed for Siemens SIMATIC S5 PLC systems
Accommodates up to 6 module locations for flexible I/O card expansion
Includes 1 system receptacle for inter-rack communication and bus linking
Operates without an integrated power supply, utilizing external system power distribution
Rugged industrial chassis built for legacy control cabinet installations

Applications

Legacy SIMATIC S5 PLC system capacity expansion
Industrial manufacturing plant automation retrofits
Heavy-duty process control system maintenance
Industrial machinery and production line modernization support

Technical Specifications

Technical Parameter	Specification
Brand	Siemens
Manufacturer	Siemens
Range	Simatic S5
Subrange	S5-135
Type of product	Expansion units
Product phase	Obsolete
Version	Expansion unit "A" version
Power Supply	Without power supply
Module Slots	6 module locations
Receptacles	1 receptacle
Dimensions	26.40 x 30.00 x 14.20 cm
Weight	3.55 kg
Commodity Code	85389091
Export Control Regulations (ECCN)	N

Installation Guidelines

Mount the expansion unit securely onto a standard mounting plate inside the heavy-duty industrial control cabinet.
Ensure proper grounding and bonding of the metal chassis to maintain system electromagnetic compatibility (EMC).
Connect the system bus cable from the central controller or preceding expansion rack to the integrated receptacle.
Install compatible SIMATIC S5 I/O modules into the designated slots while ensuring external power supply connections are properly established.

FAQ

What is the primary function of the 6ES5181-3AA11 unit?

It serves as an expansion unit for SIMATIC S5 programmable logic controller systems, allowing the addition of modular I/O cards to legacy installations.

How many module slots and receptacles does this expansion unit provide?

The unit features 6 module locations and 1 system receptacle.

Does this expansion unit include a built-in power supply?

No, it is an 'A' version unit supplied without an integrated power supply.

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Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	Silver
Country of origin	Germany