The Siemens 6ES7138-4AA10-0AA0 is a reserve module for the ET 200S distributed I/O system, designed to fill an unused slot while maintaining backplane bus continuity through the station. It occupies the same mechanical footprint as an electronic module but carries no input/output function, no diagnostics, and draws only 0.025 W of power.
Siemens 6ES7138-4AA10-0AA0 Reserve Module, 30mm Width
MPN6ES7138-4AA10-0AA0
Siemens SIMATIC DP, Reserve Module for ET 200S, 6ES7138-4AA10-0AA0, 30 mm width, 52 mm depth, 0.025 W power loss.
$71.60Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Electrical
| Parameter | Value |
|---|---|
| Power loss (typ.) | 0.025 W |
Performance
| Parameter | Value |
|---|---|
| Diagnostics function | No |
Mechanical
| Parameter | Value |
|---|---|
| Height | 81 mm |
| Width | 30 mm |
| Depth | 52 mm |
| Weight (approx.) | 55 g |
Other specifications
| Parameter | Value |
|---|---|
| Inputs | according to configured module |
| Remark | according to configured module |
Product details
Frequently asked questions
What are the key dimensions of this reserve module?
Width 30 mm, depth 52 mm, height 81 mm, with a weight of approximately 55 g.
Will the 6ES7138-4AA10-0AA0 drop into a panel specified around the 6ES7193-4CC30-0AA0 interface module?
No. The reserve module is 30 mm wide, 52 mm deep, 81 mm high, while the interface module is 15 mm wide, 43 mm deep, 132 mm high. Physical dimensions differ significantly, so they are not mechanically interchangeable without panel modification.
What is the power consumption of the reserve module?
Typical power loss is 0.025 W, confirming it is a passive placeholder with negligible thermal contribution.
MPN
6ES7138-4AA10-0AA0