Overview
Manuals
Principle
Technical
Environmental
Features:
- Power Supply Module
- SIMATIC S7-400, power supply PS405, wide range 10 A, 24/48/60 V DC; 5 V DC/10 A
- It is designed to provide a stable 5V and 24V DC power supply for the backplane bus
The 6ES7405-0KA02-0AA0 is a signal interface module designed specifically for the SIMATIC S7-400 series PLCs. Its primary function is to provide reliable communication and signal distribution between the central processing unit (CPU) and connected I/O modules. By ensuring structured signal routing and high-speed data transmission, this module supports deterministic operation and efficient control in industrial automation systems.
In practical applications, the 6ES7405-0KA02-0AA0 can seamlessly integrate various input/output devices (such as sensors, actuators, and field instruments) into the S7-400 PLC architecture, thereby improving system performance. This module has high immunity to electrical noise and can operate stably in industrial environments, making it suitable for complex production lines, process automation, and machine control systems with extremely high requirements for reliability and precise timing.
The 6ES7405-0KA02-0AA0 Siemens Power Supply Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7405-0KA02-0AA0 Power supply module datasheet(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
It receives input and output signals from connected I/O modules, routes them through internal circuitry, and transmits the processed signals to the CPU via the backplane bus. Conversely, control commands issued by the CPU are also distributed to the relevant output modules through this interface. By maintaining proper electrical isolation, signal integrity, and synchronous communication, this module ensures accurate real-time interaction between the PLC and field devices.
This module occupies two slots in an S7-400 rack:
1. Action Buffer: Provides 20 milliseconds of energy storage time to handle brief voltage failures, compliant with NAMUR standards.
2. Protection: Integrated short-circuit protection, compliant with Class I device protection standards.
3. Backup Battery: Supports optional backup power (2 AA lithium batteries, 3.6V) to ensure data safety during power outages.
Weight: Approximately 1.2 kg (shipping weight up to 2.5 kg).
Operating Temperature: 0°C to +60°C.
Approvals: ATEX, FM (Ta: 0°C to 60°C T4), CCC, and BIS certifications.
