6ES7138-4CA01-0AA0 Siemens SIMATIC DP, PM-E Power Module

Product Overview

The Siemens 6ES7138-4CA01-0AA0 is a PM-E power module for the SIMATIC ET 200S distributed I/O system. It supplies 24V DC load voltage to ET 200S electronic modules with a rated current capacity of 10 A. Featuring integrated diagnostics, reverse polarity protection, and a group error LED, it ensures safe, reliable power distribution for field devices connected to the ET 200S station.

Key Specifications

• Module Type: Power Module (PM-E)
• Rated Voltage: 24V DC
• Current Carrying Capacity: 10 A max (up to 60°C)
• Reverse Polarity Protection: Yes
• Short-Circuit Protection: No (external circuit breaker required, Type C characteristic)
• Diagnostics: Missing load voltage detection, configurable enable/disable
• Diagnostic LEDs: Green PWR (load voltage present), Red SF (group error)
• Potential Separation: Yes, between load voltage, backplane bus, and neighboring modules
• Isolation Test Voltage: 500V DC
• Dimensions (W × H × D): 15 mm × 81 mm × 52 mm
• Weight: 35 g
• Power Loss: Typ. 0.1 W

Compatibility & Applications

Compatible with all ET 200S interface modules and terminal modules TM-P15S23-A0/A1. Required for powering digital output modules, relay modules, and field devices in ET 200S stations across manufacturing, process control, and material handling applications.

FAQ

• Q: Why do I need a PM-E power module? A> ET 200S output modules and some input modules require a separate 24V DC load voltage. The PM-E module feeds this voltage to the terminal modules while maintaining potential separation from the backplane bus.
• Q: Does it have built-in short-circuit protection? A> No, an external circuit breaker (Type C, max. 10 A) must be installed upstream. The PM-E provides reverse polarity protection but not overcurrent protection.
• Q: Can I use multiple PM-E modules in one ET 200S station? A> Yes, multiple PM-E modules can create isolated potential groups for safe segmentation of output circuits.
• Q: What terminal module is required? A> Use TM-P15S23-A0 (6ES7193-4CD20-0AA0) or TM-P15S23-A1 terminal modules designed specifically for power modules.

Installation Guide

1. Mount TM-P terminal module on the DIN rail.
2. Insert 6ES7133-4CA01-0AA0 into the TM-P terminal module.
3. Connect 24V DC supply to the terminal module power terminals (L+, M).
4. Install external 10A Type C circuit breaker on the supply line.
5. Verify green PWR LED illuminates and no red SF LED is present.

Selection Tips

• Use 6ES7138-4CA01-0AA0 for standard 24V DC power distribution in ET 200S stations.
• For high-feature power modules with enhanced diagnostics, consider 6ES7138-4CA60-0AB0.
• For safety applications requiring PROFIsafe, use PM-E F modules (6ES7138-4CFxx series).
• Calculate total load current of all output modules and ensure it does not exceed 10 A per PM-E.