Siemens 6ES7148-4CA60-0AA0 | ET 200pro Power Module

The Siemens 6ES7148-4CA60-0AA0 is an outgoing power module for the SIMATIC ET 200pro distributed I/O system . This module supplies two separate 24 V DC circuits to power the electronics and load voltages of downstream modules. It includes the necessary bus module for installation, while requiring the connection module 6ES7194-4BH00-0AA0 ordered separately . Furthermore, the unit supports the IP65/67 degree of protection, allowing direct installation on machines without control cabinets .

Dual Voltage Supply and Current Ratings

This power module provides two distinct output paths. The first, 1L+, delivers up to 2 A for the electronics and encoder supply. The second, 2L+, offers up to 6 A for the main load voltage supply . Moreover, the internal busbars of the ET 200pro system can carry a maximum of 10 A up to 55 °C . Its compact dimensions measure 45 x 130 x 35 mm (W x H x D) and it weighs approximately 0.176 kg .

Diagnostics and Protection Functions

The Siemens 6ES7148-4CA60-0AA0 includes comprehensive diagnostic functions for proactive maintenance. It features a red “SF” (Group Error) LED to indicate a fault condition and provides readable diagnostic information . The module offers reverse polarity protection and electronic short-circuit protection for the 1L+ circuit . For 2L+, protection is achieved via a replaceable fuse in an upstream power module .

Technical Specifications

Parameter	Specification
Manufacturer	Siemens
Model	Siemens 6ES7148-4CA60-0AA0
Product Type	PM-O Outgoing Power Module
Rated Load Voltage	24 V DC
Total Current (1L+)	2 A (electronics/encoder supply)
Total Current (2L+)	6 A (load voltage supply)
Max. Busbar Current	10 A (up to 55 °C)
Dimensions (W x H x D)	45 x 130 x 35 mm
Weight	Approx. 0.176 kg
Short-circuit Protection	Yes (1L+ electronic, 2L+ via fuse)
Reverse Polarity Protection	Yes
Degree of Protection	IP65/67
Insulation Test Voltage	707 V DC (type test)
Country of Origin	Germany
Product Lifecycle	Active (PM300)

System Integration and Hot-Swap Capability

This power module integrates seamlessly into the ET 200pro system architecture . Its robust design makes it suitable for harsh environmental conditions and mechanical stress . Additionally, the system supports “Hot Swapping,” allowing module replacement during operation without shutting down the plant . This feature, combined with precise diagnostics, ensures high system availability and productivity .