SIEMENS 6ES7390-1AE80-0AA0 SIMATIC S7-300 482.6 mm Mounting Rail
Tin-plated aluminium mounting rail for arranging S7-300 modules across a 19-inch-width installation. Product selection must be checked against the installed hardware, complete suffix and manufacturer installation documentation.
Technical specifications
Purpose and application areas
Rebuilding an S7-300 rack
Restore the original module spacing and mechanical support when an enclosure or rail has been damaged.
19-inch cabinet work
Use the 482.6 mm rail where the panel layout calls for a rack-width S7-300 mounting surface.
Pre-shutdown preparation
Confirm usable rail length, fastening points and enclosure clearance before the retrofit team arrives on site.
Rebuilding an S7-300 rack with limited shutdown time?
Send the cabinet width, rail photo and planned module lineup. Myrtle will verify the 482.6 mm reference before quoting.
Model check · Stock 10 · MOQ 1 · 3–5 days
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Confirm rail length and cabinet fit
Clear photos help confirm the exact product and installed arrangement before dispatch.
Frequently asked questions
Q1 · Why can the wrong 6ES7390-1AE80-0AA0 rail delay an S7-300 retrofit?
Rail length and fastening geometry determine whether the CPU, signal modules and connectors fit the planned cabinet space. Confirm the 482.6 mm length and 122 mm height before ordering.
Q2 · Does 6ES7390-1AE80-0AA0 replace electrical backplane hardware?
No. It is the mechanical mounting rail. Bus connectors, modules and field connectors remain separate parts and must be checked independently.
Q3 · What should be measured before ordering 6ES7390-1AE80-0AA0?
Measure enclosure width, door clearance, mounting-hole position and the total module lineup. A rack-width rail can still be unsuitable if the cabinet has obstructions.
Q4 · Why does the tin-plated aluminium construction of 6ES7390-1AE80-0AA0 matter?
It provides the specified S7-300 mechanical carrier and surface finish; it does not remove the need to follow the panel grounding and mounting instructions.
Q5 · What photo helps confirm 6ES7390-1AE80-0AA0 fastest?
Send the full rail, end markings, installed module lineup and a tape-measure view of the usable length. This avoids confusion with shorter S7-300 rails.
Practical mechanical checks before S7-300 parts ship
PLCEXPORT coordinates order-code, dimension and packing checks so installation teams receive a rail matched to the planned cabinet work.
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SIEMENS 6ES7390-1AE80-0AA0 availability
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