Description

The Siemens 6ES7407-0KA02-0AA0 is a high-performance power supply module (PS 407) designed for the SIMATIC S7-400 automation system. It provides a stable and reliable 5 V DC output for the backplane bus and an auxiliary 24 V DC output for system functions. Engineered for demanding industrial environments, this module supports a wide-range AC/DC input, ensuring continuous operation even in facilities with fluctuating power conditions.

Features

• Designed for SIMATIC S7-400 PLC systems
• Wide-range input: 120/230 V AC or 120/230 V DC
• Output: 5 V DC / 10 A for backplane bus and 24 V DC auxiliary output
• Integrated short-circuit and over-temperature protection
• Mains buffering capability (20 ms) for power interruption resilience
• Galvanic isolation between primary and secondary circuits

Applications

• Automotive production lines and robotics
• Chemical and pharmaceutical process control
• Food and beverage packaging and material handling
• Water and sewage treatment infrastructure
• Industrial energy management and substation control

Technical Specifications

Installation Guidelines

• Mounting: The module must be installed in the first slot (leftmost) of the S7-400 rack.
• Fixing: Hook the module onto the bottom of the rack, swing it upward until it snaps into the top, and secure it with the provided bottom screw.
• Clearance: Maintain at least 20 mm of clearance above and below the module to facilitate natural convection cooling.
• Handling: Ensure the system is powered down before inserting or removing the module to prevent electrical damage.
• Environment: Keep away from high-EMI sources and ensure the cabinet is properly grounded.

FAQ

What is the 6ES7407-0KA02-0AA0?

It is a 10A power supply module for the SIMATIC S7-400 PLC series, responsible for powering the backplane bus and connected system components.

Does this module support redundant operation?

No, this is a standard power supply. Redundant configurations require the 6ES7407-0KR02-0AA0 model.

What is the purpose of the battery slot?

The module includes a slot for a 3.6 V / 2.3 Ah AA lithium battery to provide backup for RAM and system parameters during power failures.