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Siemens 6ES7138-4CA00-0AA0 — PLC I/O & Expansion Modules

Siemens 6ES7138-4CA00-0AA0 Power Module, 24 V DC, 10 A

MPN6ES7138-4CA00-0AA0

Siemens SIMATIC DP, Power Module PM-E for ET 200S; 24V DC with diagnosis.

$15.65Ref. price · indicative, final on quote
Siemens 6ES7138-4CA00-0AA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7138-4CA00-0AA0 — Electrical
ParameterValue
Rated value (DC)24 V
Power loss (typ.)0.1 W
Current consumption from load voltage L+ (no load), max.4 mA
Short-circuit protectionNo; external (e.g. automatic circuit breaker)
Reverse polarity protectionYes
Isolation test voltage500 V DC
6ES7138-4CA00-0AA0 — Performance
ParameterValue
Diagnostics functionYes
Group fault indicator (SF, red LED)Yes
6ES7138-4CA00-0AA0 — Mechanical
ParameterValue
Height81 mm
Width15 mm
Depth52 mm
Weight (approx.)35 g

Product details

This Siemens 6ES7138-4CA00-0AA0 is a SIMATIC DP power module for the ET 200S distributed I/O system, providing 24 V DC to downstream modules with integrated diagnostics and reverse polarity protection. Typical power loss is only 0.1 W, so it doesn't add meaningful thermal load inside the cabinet.

Diagnostics and protection

A group error SF (red) LED and readable diagnostics via ET 200S backplane let the controller know if the load voltage is missing or if there's a fault downstream, without separate wiring. Reverse polarity protection on L+ is built in – one less thing to catch during panel checkout. Short-circuit protection is not internal; the spec calls for an external miniature circuit breaker with tripping characteristic C (recommended upstream of the power module).

Frequently asked questions

What is the depth and width of this module?

Depth is 52 mm, width is 15 mm, height is 81 mm.

Will 6ES7138-4CA00-0AA0 drop into a panel designed for 6ES7193-4CC30-0AA0 without rewiring?

No – they are different module types. The 6ES7193-4CC30-0AA0 is a BaseUnit with depth 43 mm and height 132 mm; the power module is 52 mm deep and 81 mm high. Panel cutouts and wiring assignments differ.

MPN
6ES7138-4CA00-0AA0