Industrial Communication | Siemens | 6ES7 138-4CB10-0AB0 6ES7138-4CB10-0AB0 PM-E Power Modules for ET200S

Product Description: Siemens 6ES7138-4CB10-0AB0

The Siemens 6ES7138-4CB10-0AB0 is a PM-E power module designed for the ET 200S distributed I/O system. It feeds and regulates the station’s backplane bus from either a DC or AC supply, while providing integrated diagnostics and a brief hold-up function to bridge short power interruptions. The module supports both 24 … 48 V DC and 24 … 230 V AC inputs, making it versatile for a wide range of industrial installations.

Key Features

• Dual-Supply Capability: Accepts 24 … 48 V DC or 24 … 230 V AC input
• Diagnostics: On-board LEDs indicate “Supply OK,” “Fault,” and “Backup Active”
• Bus-Backup: Built-in hold-up time maintains bus voltage for brief supply dips
• Compact Design: 15 mm module width for high-density ET 200S stations
• Mounting: Snap-on to standard ET 200S mounting rail with integrated bus connector
• Protection Class: IP20 for front-panel and module housing

Technical Specifications

• Supply Voltage (DC): 24 … 48 V DC
• Supply Voltage (AC): 24 … 230 V AC, 47 … 63 Hz
• Input Current: ≤ 9 mA (DC mode) / ≤ 9.5 mA (AC mode)
• Bus-Backup Hold-Up Time: ≈ 20 ms at rated bus load
• Module Width: 15 mm
• Dimensions (W × H × D): 15 mm × 81 mm × 52 mm
• Weight: ≈ 34 g
• Operating Temperature: 0 °C … +60 °C
• Storage Temperature: –25 °C … +70 °C
• Protection Class: IP20

Application Areas

• Powering and protecting SIMATIC ET 200S I/O stations
• Ensuring uninterrupted backplane bus operation during brief voltage dips
• Use in machinery control, process automation, and distributed sensor/actuator networks

Advantages

• Versatile Input: Flexible AC or DC supply options simplify system design
• Integrated Diagnostics: Visual status prompts speed fault isolation
• Bus-Backup Feature: Prevents nuisance trips on transient supply interruptions
• Space-Efficient: Ultra-narrow module maximizes available rack slots
• Seamless Integration: Direct snap-on mounting and plug-through bus connection