Siemens 6ES74050KA020AA0

Technical Parameters

Supply voltage Rated value (DC)

24 V DC: Yes

48 V DC: Yes

60 V DC: Yes

Mains buffering

Mains/voltage failure stored energy time: 20 ms

Mains buffering according to NAMUR recommendation: Yes

Input current

Rated value at 24 V DC: 4 A

Rated value at 48 V DC: 2 A

Rated value at 60 V DC: 1.6 A

Inrush current, max. : 18 A; Full width at half maximum 20 ms

output voltage / header

Type of output voltage: DC

Rated value (DC)

5 V DC : Yes

24 V DC: Yes

Output current for backplane bus (5 V DC), max. : 10 A; no base load required

for backplane bus (24 V DC), max. : 1 A; idling-proof

Short-circuit protection: Yes

Power Active power input, typ. : 95 W

Power loss

Power loss, typ. : 20 W

Key Features

The Siemens 6ES74050KA020AA0 excels in delivering high efficiency and redundancy:

Dual Power Redundancy: Supports redundant power configurations to ensure uninterrupted operation in critical processes like pharmaceuticals manufacturing or steel production, where even brief power interruptions can lead to costly downtime .

Broad Voltage Compatibility: Accepts input voltages of 120/230 V AC or 24 V DC, providing flexibility for global industrial applications. Its compact design (dimensions: 40mm × 125mm × 120mm) allows easy installation in control cabinets with limited space .

Diagnostics and Safety: Features integrated LED status indicators for real-time monitoring of voltage and load conditions. Compliant with IEC 61508 SIL 3 safety standards, the Siemens 6ES74050KA020AA0 ensures safe operation in systems requiring fail-safe automation .

Associated Equipment

Maximize the Siemens 6ES74050KA020AA0’s performance by pairing it with Siemens-certified components:

S7-400 CPUs: Compatible with high-performance CPUs like 6ES7412 and 6ES7416, enabling seamless communication via PROFIBUS or PROFINET for real-time data exchange .

Redundant Systems: Integrates with S7-400H racks to create fault-tolerant power architectures, minimizing risks in applications like power grid monitoring or unmanned production lines .

Engineering Tools: Configure and monitor the Siemens 6ES74050KA020AA0 using Siemens TIA Portal software, which simplifies parameter settings and diagnostics while supporting centralized firmware updates .

Typical Use Cases

The Siemens 6ES74050KA020AA0 is pivotal in scenarios demanding reliability and scalability:

Automotive Assembly Lines: Powers control systems managing robotic arms and conveyor belts, where redundant power ensures continuous operation during shift changes or maintenance .

Energy Substations: Provides stable power to S7-400 PLCs monitoring transformers and circuit breakers, with redundancy preventing outages during grid load fluctuations .

Chemical Batch Processing: Supports fail-safe automation in reactors and mixing tanks, where power stability is vital to prevent hazardous material leaks .