Siemens A5E31006890-K8 | SIMATIC PC Industrial Power Supply
The Siemens A5E31006890-K8 is the original spare part power supply for SIMATIC industrial PCs and HMI systems. This 150W unit with universal 100-240V AC input serves as the engineered replacement for internal power supplies in IPC627B/C, IPC827B/C, HMI IPC677B/C, HMI IPC577C, CV4, and CV5 systems.
Product Overview
The Siemens A5E31006890-K8 is a Siemens-designed, application-specific power supply built to the exact mechanical and electrical tolerances of SIMATIC IPC chassis. Unlike generic ATX power supplies, this unit features matched output rail configuration, connector layout, board-level protection circuits, and physical dimensions specifically for SIMATIC IPC627/827 chassis internals.
The Rev. K8 revision indicator confirms the current production level of this specific variant, ensuring compatibility with all listed system types.
Technical Specifications
| Parameter |
Value |
| Part Number |
A5E31006890-K8 |
| Input Voltage |
AC 100-240V (universal, auto-ranging) |
| Output Power |
150W |
| Revision |
K8 |
| Weight |
Approx. 0.6 kg |
| Compatible Systems |
IPC627B, IPC627C, IPC827B, IPC827C, HMI IPC677B, HMI IPC677C, HMI IPC577C, CV4, CV5 |
| Product Type |
Spare Part – Industrial Internal Power Supply |
| Manufacturer |
Siemens AG |
Maintenance Planning Importance
In industrial computing systems, the power supply is typically the component most likely to fail and take a system offline. The A5E31006890-K8 handles mains voltage conversion, thermal loads, and contains components that accumulate wear over service years.
Maintaining a spare A5E31006890-K8 in inventory eliminates sourcing delays during system failures, enabling qualified technicians to restore production systems in under an hour rather than waiting for delivery lead times.
Global Power Compatibility
The universal 100-240V input range provides global compatibility with industrial supply voltages worldwide, including 100-120V at 50/60 Hz (North America, Japan) and 200-240V at 50 Hz (Europe, Asia, Australia).
This wide input range offers tolerance against voltage sags and transients common in manufacturing environments with heavy motor loads, distinguishing industrial-rated power supplies from commercial-grade equivalents.
Compatible System Families
IPC627B and IPC627C
Rack-mountable industrial Box PCs with multiple PCIe expansion slots for automation cabinets and production control infrastructure.
IPC827B and IPC827C
Rack-mount variants sharing the same motherboard architecture and internal power supply form factor as the IPC627 series.
HMI IPC677B/C and HMI IPC577C
HMI-specific variants integrated with industrial touchscreen panels for operator interface applications.
CV4 and CV5
Siemens computer vision platform systems sharing this power supply format.
Replacement Procedure Guidelines
Replacing the internal power supply requires system shutdown, cabinet access, and proper handling of mains-connected components. Follow Siemens maintenance documentation for specific procedures.
Critical safety points include complete system power down and isolation from mains supply, waiting for capacitor discharge as specified in documentation, and ensuring proper connector alignment during installation.
Frequently Asked Questions
How do I confirm the A5E31006890-K8 is the correct power supply for my system?
Cross-reference the part number on your existing power supply's label against A5E31006890. Confirm your system model from the chassis nameplate – if it matches IPC627B/C, IPC827B/C, HMI IPC677B/C, or HMI IPC577C, the A5E31006890-K8 is compatible.
Can a standard ATX power supply be used as a replacement?
Not recommended. The A5E31006890-K8 features application-specific connector layout, output rail configuration, and physical form factor matched to SIMATIC IPC chassis. Standard ATX units differ in pinout, specifications, and dimensions, risking motherboard damage or clearance issues.
What symptoms indicate the A5E31006890-K8 needs replacement?
Common failure symptoms include complete power failure (no response to on/off switch), random resets during operation, POST errors referencing voltage conditions, or fan operation without completing POST. Confirm mains voltage is present before replacement.
What does the "Rev. K8" revision designation mean?
Rev. K8 identifies the current production revision of the A5E31006890 part number, indicating engineering updates while maintaining backwards compatibility with all listed system types.
Is any configuration required after fitting the A5E31006890-K8?
No configuration is required. The power supply is a direct hardware replacement with no firmware, parameter, or BIOS configuration needed. The system should boot normally through standard POST and operating system load sequence.
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