Reliable system power supply 6ES7505‑0KA00‑0AB0 for S7‑1500 automation

The Siemens 6ES7505‑0KA00‑0AB0 is a system power supply module providing 25 W of power at 24 V DC for the SIMATIC S7‑1500 series. It delivers a stable power output to the backplane bus, ensuring reliable operation of CPUs and connected I/O modules. The unit features diagnostic LEDs for status monitoring and includes protective functions such as short-circuit, overcurrent, and reverse polarity protection. Compact and robust, it is designed for industrial environments requiring dependable power supply solutions.

Technical specifications

• Power rating: 25 W to the backplane bus

• Input current: approx. 1.3 A at 24 V DC

• Power loss: about 6.2 W under nominal load

• Protection class: IP20

• Diagnostic indicators: LED status display

• Isolation voltage: 707 V DC (type test)

• Input voltage range: 19.2 V to 28.8 V DC

• Operating temperature: –25 °C to +60 °C

• Dimensions: 35 mm × 147 mm × 129 mm (W × H × D)

• Weight: approx. 356 g

Key advantages

• Stable 24 V DC power supply for S7‑1500 modules

• Integrated diagnostic LEDs for easy status monitoring

• Protection against short circuits, overcurrent, and reversed polarity

• Compact size for convenient installation in control panels

• Reliable and durable for industrial use

Applications and use cases

Ideal for powering SIMATIC S7‑1500 PLC racks, this power supply ensures continuous operation of CPUs and I/O modules in industrial automation systems. Commonly used in manufacturing, process control, and machinery automation where reliable power and diagnostics are essential.

About the manufacturer

Siemens is a global leader in industrial automation, offering modular and scalable control system components. The SIMATIC S7‑1500 product family includes high-quality power supplies like the 6ES7505‑0KA00‑0AB0, ensuring dependable and efficient automation solutions.