Siemens 6ES7492-1AL00-0AA0
Siemens 6ES7492-1AL00-0AA0
Siemens 6ES7492-1AL00-0AA0
Siemens 6ES7492-1AL00-0AA0
Siemens 6ES7492-1AL00-0AA0
Siemens 6ES7492-1AL00-0AA0
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6ES7492-1AL00-0AA0

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The 6ES7492-1AL00-0AA0 is a 482 mm (19-inch) mounting rail for SIMATIC S7-400 racks, used for securing I/O modules, power supplies, and CPUs in a standard control cabinet.
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Technical specifications for 6ES7492-1AL00-0AA0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7492-1AL00-0AA0
  • Product Family:
    Siemens Simatic S7-400
  • Product Type:
    Mounting rail for S7-400
  • Material:
    Steel / metal (galvanized)
  • Mounting Holes:
    Pre-drilled for cabinet mounting
  • Compatibility:
    All S7-400 modules (CPUs, PS, I/O, CP, FM)
  • Pain Point Solved:
    Solves the need for a mechanically robust, correctly sized mounting rail to securely install S7-400 modules in standard 19-inch cabinets – replacing damaged or missing rails without custom fabrication.
  • Weight:
    0.2 kg
  • Estimated shipping dimensions:
    27.4x6.6x2.3cm
  • Tariff Code:
    8517795000
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Protection Features Installation and Spare Parts

Features:

  • Fits standard industrial cabinets; compatible with all S7-400 modules.
  • Galvanized steel; pre-drilled mounting holes for secure cabinet attachment.
  • Drop-in replacement for original S7-400 mounting rails; no modification or configuration needed.
The 6ES7492-1AL00-0AA0 measures exactly 482 mm (19 inches), the standard width for industrial control cabinets worldwide. This ensures a perfect fit in existing S7-400 installations without cutting or custom fabrication. The rail supports all standard S7-400 modules – CPUs, power supplies, digital/analog I/O cards, communication processors, and function modules. Modules clip onto the rail using their built-in latches and are secured with screws. The 19‑inch form factor allows the rail to be mounted horizontally or vertically, depending on cabinet layout.

The 6ES7492-1AL00-0AA0 is manufactured from galvanized steel, providing corrosion resistance and mechanical strength. The rail can support the weight of multiple S7-400 modules without bending or flexing, even in high‑vibration environments such as machine tool controls or mobile equipment. Pre‑drilled holes at regular intervals allow secure attachment to the cabinet backplate using M6 screws or similar fasteners. The rail surface is designed to accept the standard S7-400 module clips, ensuring a firm, rattle‑free connection. Unlike plastic mounting solutions, this metal rail also serves as a low‑impedance ground path when properly bonded to the cabinet earth.

The 6ES7492-1AL00-0AA0 is available as a spare part for SIMATIC S7-400 systems, many of which are no longer in active production. When the original mounting rail becomes damaged – bent, corroded, or with stripped threads – replacing it with this exact model avoids the need for custom drilling or adapter plates. The replacement process is straightforward: power down the system, remove all modules from the old rail, unscrew the rail, mount the new 6ES7492-1AL00-0AA0 in the same position, and reinstall the modules. No configuration, software changes, or rewiring are required. Slot addressing remains unchanged because the physical order of modules is preserved.

The 6ES7492-1AL00-0AA0 Siemens SIGNAL MODULES may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

Siemens 6ES7492-1AL00-0AA0 SIGNAL MODULES Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Siemens 6ES7492-1AL00-0AA0 SIGNAL MODULES Specs

General

  • Manufacturer Siemens
  • Model 6ES7492-1AL00-0AA0
  • Condition New Original ready stock
  • Product Family 6ES7492-1AL00-0AA1,6ES7492-1BM00-0AA0
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • High-end process control: such as automotive manufacturing, chemical industry, and power plants.
  • Complex mechanical engineering: used in automated warehouses, large machine tools, and automated production lines.
  • Signal-intensive tasks: specifically designed for connecting S7-400 digital or analog input/output modules.
  • Module Replacement Protection: Equipped with a mechanical coding mechanism, it prevents the connector from being incorrectly inserted into different types of modules during maintenance, reducing the risk of misconnection.
  • Simplified Maintenance Diagnosis: When replacing a faulty module, the wiring remains on the connector. This significantly reduces the Mean Time To Repair (MTTR) and avoids human error caused by rewiring.
  • Physical Connection Protection: Utilizes a 48-pin crimp design to ensure stable and safe signal transmission under high current or vibration conditions.
  • Installation Requirements: Use standard screw-on wiring; multi-core wires are supported. Installation requires the specific slot corresponding to the S7-400 module.
  • Product Lifecycle: Siemens has announced that this product will officially enter the product phase-out phase on October 1, 2025.
  • Spare Parts Recommendation: Some stock is still available and can be obtained from the Siemens Industry Mall or authorized spare parts providers such as PLC-City.
Description
The 6ES7492-1AL00-0AA0 is a mounting rail designed for SIMATIC S7-400 systems. This rail provides the mechanical backbone for attaching S7-400 modules including CPUs, power supplies, and I/O cards. It is made of robust metal for industrial environments.

When installing the 6ES7492-1AL00-0AA0, engineers can mount it horizontally or vertically inside a control cabinet. The rail includes pre-drilled holes for secure fixing. Proper grounding is essential – the rail connects to the cabinet's protective earth. This ensures electrical safety and reduces electromagnetic interference.

The 6ES7492-1AL00-0AA0 is compatible with all standard S7-400 modules. It replaces damaged or worn rails in existing systems. As a mechanical accessory, it has no electronic components or software requirements. 
Alternative Names
6ES7492-1AL00-0AA1 6ES7492-1BM00-0AA0 6ES7492-1BL00-0AA0 6ES7492-1BN00-0AA0
Technical notes
The 6ES7492-1AL00-0AA0 is a purely mechanical component – it has no electronics, no power requirements, and no configuration. It simply provides structural support and grounding for S7-400 modules.When replacing a damaged rail with the 6ES7492-1AL00-0AA0, always transfer modules one at a time to avoid mixing up slot addressing.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which modules fit on the 6ES7492-1AL00-0AA0?
The 6ES7492-1AL00-0AA0 accepts all standard S7-400 modules: CPUs, power supplies, digital/analog I/O, communication processors (CP), and function modules (FM). It is the standard 482 mm (19-inch) rail for S7-400 racks.
How do I mount the 6ES7492-1AL00-0AA0?
Secure the 6ES7492-1AL00-0AA0 to your cabinet using the pre-drilled holes with M6 or similar screws. Ensure the rail is grounded via the cabinet earth. Then clip S7-400 modules onto the rail and screw them in place. No special tools required.