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Product description

Siemens 6ES7312-1AE14-0AB0 is a SIMATIC S7-300 CPU 312 for smaller control tasks, installed machinery and spare-part applications using a conventional S7-300 architecture. Siemens describes the module as a central processing unit with MPI, an integrated 24-V-DC supply, 32 KB of working memory and a required Micro Memory Card. The complete MLFB is important because CPU memory, interface equipment and engineering environment vary considerably within the S7-300 family. Supply voltage is specified as 24 V DC with an admissible range from 19.2 to 28.8 V DC; nominal current consumption is 650 mA and typical no-load consumption is 140 mA. Siemens also specifies typical switch-on current of 3.5 A and typical power loss of 4 W. The integrated RS-485 interface operates as MPI and provides up to 200 mA of interface output current. The narrow S7-300 housing is 40 mm wide, 125 mm high and 130 mm deep, with an approximate weight of 270 g. For replacement, compare the hardware configuration, MMC contents, MPI address, STEP-7 project status and existing communication partners. The documented combination of MPI communication, a narrow 40-mm housing, a 24-V supply and the Micro Memory Card concept makes this CPU easy to identify where several similar modules are installed. These electrical and mechanical values support a reliable check of power reserve, rack space, slot allocation and project configuration before a maintenance window is planned.

Siemens 6ES7312-1AE14-0AB0 SIMATIC S7-300 CPU 312

Specifications

Manufacturer Siemens
Product series SIMATIC S7-300
Manufacturer/Order/Identification number 6ES7312-1AE14-0AB0
Equipment type CPU 312 central processing unit
Supply voltage 24 V DC
Voltage range 19.2 to 28.8 V DC
Nominal current consumption 650 mA
Working memory 32 KB integrated
Load memory Micro Memory Card required, max. 8 MB
Interface Integrated RS-485 MPI interface
Connections max. 6 connections in total
Power loss typ. 4 W
Dimensions 40 x 125 x 130 mm
Cooling method Passive module heat dissipation in the S7-300 rack
Weight approx. 270 g
Control cabinet with PLC modules and automation components
Machine downtime in a production environment

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Product safety

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FAQ

Frequently asked questions

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Is this Siemens product available immediately?

Yes. The item is recorded as available stock and can be prepared for dispatch promptly after the order is received.

Which details should I compare before replacement?

Compare the complete order number, hardware and firmware revision, Micro Memory Card, MPI configuration, STEP 7 project and installed S7-300 modules with the existing CPU.

Is there a guarantee?

Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.

Please note that the guarantee only applies when the warranty seal is undamaged.

If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.

Further details are provided in the terms and conditions supplied with your quotation.

How quickly do you dispatch and which shipping options are available?

We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.

Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.

We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.

Which payment methods are available?

Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.

As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.

Can we return items if they were ordered incorrectly?

Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.

Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.

Is there a discount when ordering several items?

For larger order quantities or several items of one type, we can offer individual discounts.

Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.

Do you also purchase industrial spare parts?

Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.

The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.

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