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
| Model |
6ES7407-0KA02-0AA0 |
| Input Voltage (AC) |
120/230 V (85 to 264 V AC) |
| Input Voltage (DC) |
120/230 V (88 to 300 V DC) |
| Frequency Range |
47 to 63 Hz |
| Output Current (5V DC) |
10 A |
| Power Consumption (typ) |
95 W |
| Buffering Time |
20 ms |
| Weight |
1.15 kg |
Installation Guidelines
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Mounting: The module must be installed in the first slot (leftmost) of the S7-400 rack.
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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.
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Clearance: Maintain at least 20 mm of clearance above and below the module to facilitate natural convection cooling.
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Handling: Ensure the system is powered down before inserting or removing the module to prevent electrical damage.
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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.