Siemens SIMATIC S7-400 PS405 Redundant Power Supply

USD 1,621.89

Redundant 5V/10A, 24V/1A DC power supply for S7-400 with 24/48/60V DC input. 1.2 kg.

SKU Siemens-6ES7405-0KR02-0AA0 Category
Top Brands > Siemens > Siemens Power Supplies

Siemens SIMATIC S7-400 PS405 Redundant Power Supply

Model Identifier PS405
Official Part Number 6ES7405-0KR02-0AA0
GTIN Standard 4019169142212

Technical Overview

Redundant 5V/10A, 24V/1A DC power supply for S7-400 with 24/48/60V DC input. 1.2 kg.

Key Features

  • Redundant supply capability.
  • Selectable input voltage ranges: 24 V DC, 48 V DC, 60 V DC.
  • Dual output DC power: 5 V/10 A and 24 V/1 A for S7-400 backplane.
  • Mains buffering with >20 ms stored energy time.
  • Optional battery backup for extended power-off operation.
  • Short-circuit protection.
  • Designed for medium to large-scale industrial control systems.
  • ATEX Certification available for explosion protection.

Redundant power supply capability ensuring continuous, uninterruptible operation for critical industrial control systems.

Technical Specification Matrix

ParameterValue
Rated Input Voltages24 V DC, 48 V DC, 60 V DC
Permitted Input Range (Static)19.2 to 72 V DC
Permitted Input Range (Dynamic)18.5 to 75.5 V DC
Input Current at 24 V DC4 A
Input Current at 48 V DC2 A
Input Current at 60 V DC1.6 A
Max Inrush Current18 A (20 ms FWHM)
Output Voltage5 V DC, 24 V DC
Backplane Bus Output Current (5 V)10 A (no base load required)
Backplane Bus Output Current (24 V)1 A (idling-proof)
Short-Circuit ProtectionYes
Power Consumption (Typical)95 W
Power Loss (Typical)20 W
Backup Stored-Energy Time>20 ms (NAMUR NE 21)
Backup Battery (Optional)2× lithium AA, 3.6 V / 2.3 Ah
Backup Current When Power Off≤100 µA
Slots Required2
Equipment Protection ClassI (with protective conductor)
Overvoltage CategoryII
Pollution Degree2
Operating Temperature0 °C to 60 °C
Connection Method3 × 1.5 mm² solid/stranded wire, external diameter 3–9 mm
Physical Weight (kg)1.2
Dimensions L x W x H (cm)29.5 x 23.3 x 6.3

Industrial Applications

1. Critical Process Control Systems

Ensures continuous operation of SIMATIC S7-400 PLC-based control systems in industries like chemical plants or power generation, where momentary power interruptions can lead to catastrophic failures or significant financial losses. The redundant capability and mains buffering provide critical fault tolerance.

Problem Solved

Mitigates the risk of system downtime and operational failures due to power supply interruptions, maintaining high availability for essential industrial processes.

RedundancyUptimeProcess SafetyContinuous OperationFault ToleranceDC Power DistributionNAMUR NE 21

2. Automated Manufacturing Lines

Guarantees stable and reliable power to S7-400 PLCs orchestrating complex, high-speed automated manufacturing processes. This prevents line stoppages, product defects, and data loss caused by power disturbances, maximizing production efficiency and throughput.

Problem Solved

Eliminates production interruptions and quality issues by providing a stable and redundant power source for automation systems in dynamic manufacturing environments.

Production EfficiencyAutomationPLC ControlLine UptimePower StabilityShort-Circuit ProtectionManufacturing Automation

3. Infrastructure Automation

Provides robust and dependable power to SIMATIC S7-400 systems managing critical infrastructure, such as water treatment facilities or transportation systems. It ensures system integrity and uninterrupted operation, crucial for public service and safety, especially in remote or distributed installations.

Problem Solved

Offers resilient power delivery for critical infrastructure, minimizing service disruptions and enhancing safety in environments prone to power grid instability.

Infrastructure ResiliencePublic ServicesRemote MonitoringSystem IntegrityEnvironmental RobustnessDC Input Flexibility
Select your currency