25W 24V DC SIMATIC S7-1500 6ES7505-0KA00-0AB0 PLC

SIMATIC S7-1500 PLC 6ES7505-0KA00-0AB0 25W 24V DC

I. Product Description:

The SIMATIC 6ES7505-0KA00-0AB0 is a system power supply module in the SIMATIC SIMATIC S7-1500 series; its full model number is PS 25W 24VDC. Its primary function is to provide a 25W operating voltage for the S7-1500 backplane bus, making it a critical component for building modular PLC systems.

PS 25W 24VDC System Power Supply

24 V DC

Rated Current: 1.3 A @ 24 V DC

Backplane Bus Power Delivery: 25 W

Power-Off Transition Time: 20 ms

Primary/Secondary Isolation, Test Voltage: 707 V DC

II. Product Specifications:

SIMATIC 6ES7505-0KA00-0AB0｜SIMATIC S7-1500 System Power Supply PS 25W 24 V DC

• Firmware Version: From V1.0.0;
• Rated Supply Voltage: 24 V DC;
• Permitted Supply Voltage Range: 19.2 to 28.8 V DC static; 18.5 to 30.2 V DC dynamic;
• Reverse Polarity Protection: Supported;
• Short-Circuit Protection: Supported;
• Power Failure Buffering: 20 ms stored energy time;
• Rated Input Current: 1.3 A at 24 V DC;
• Backplane Bus Output Power: 25 W;
• Output Short-Circuit Protection: Supported;
• Typical Power Loss: 6.2 W at nominal operating conditions;
• Status Indicator: Supported;
• Potential Isolation: Primary and secondary circuits are electrically isolated;
• Isolation Test Voltage: 707 V DC, type test;
• Engineering Software: STEP 7 / TIA Portal, configurable and integrated from V12; STEP 7 V5.5 SP3 or higher;
• EMC Surge Immunity: Supports IEC 61000-4-5, including ±1 kV symmetrical and ±2 kV asymmetrical surge immunity;
• Protection Rating: IP20 according to EN 60529;
• Equipment Protection Class: Class III with protective conductor;
• Redundancy Capability: Supports redundant power supply operation;
• Installation Position: Supports horizontal and vertical installation within the SIMATIC S7-1500 / ET 200MP system;
• Operating Temperature: -25 to 60 °C for horizontal installation; -25 to 40 °C for vertical installation; earlier hardware versions may have a minimum temperature limitation of 0 °C;
• Storage / Transport Temperature: -40 to 70 °C;
• Maximum Installation Altitude: 5,000 m above sea level, with restrictions above 2,000 m;
• Dimensions (W × H × D): 35 × 147 × 129 mm;
• Weight: Approximately 350 g;
• Typical Applications: S7-1500 system power supply, backplane bus power delivery, redundant power architectures, industrial automation systems, machine control, process automation, and SIMATIC S7-1500 / ET 200MP applications.III. Technical Parameters:
SIMATIC S7-1500, System power supply PS 25W 24 V DC, supplies the backplane bus of the S7-1500 with operating voltageIV. Industries Served:
The SIMATIC 6ES7505-0KA00-0AB0 (PS 25W 24VDC), as a power supply module for the S7-1500 backplane bus, is widely used across various industrial automation applications.
In production lines and process control systems across industries such as automotive manufacturing, food and beverage, chemicals, and pharmaceutical, this module is used to supplement the backplane bus power when large-scale expansion of I/O modules is required, ensuring stable system operation.
In control cabinets for various types of equipment—such as light industrial machinery, packaging machinery, machine tools, and lifting and transportation equipment—it provides sufficient and stable operating voltage for the CPU and a large number of signal modules

V. Why choose us?

We source directly from China’s Tier 1 channels, eliminating all middleman markups. This means you get competitive prices close to factory cost, and we pass those savings on to you as profit or budget flexibility for your projects.

Don’t let stockouts slow down your project schedule. For popular models like the S7-1500 and G120, which are frequently purchased, we always maintain high levels of in-stock inventory. The moment you place your order, the goods are already ready in our warehouse. Within 1–3 business days, you’ll receive the tracking number for your international express shipment. Whether your factory is in the Middle East, Southeast Asia, or across Europe and the Americas, our global logistics network helps you reclaim valuable time.

From precision manufacturing in Europe to oil and gas fields in the Middle East, and electronics assembly lines in Southeast Asia, our products and solutions have withstood the test of demanding operating conditions around the world. We deeply understand the unique characteristics of each market, and this global experience is the guarantee of your project’s successful implementation.

We don’t just sell products—we provide the technical support that keeps your equipment running smoothly. Whether you’re facing challenges with product selection, encountering commissioning errors, or dealing with unexpected failures, our technical team is always on standby to ensure your production line issues receive a professional response—not just a voicemail.

VI. FAQ:

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