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The SPS03-5V (Part Number: SPS03-5V) is a high-density regulated power supply module within the ABB Symphony Plus and Harmony Rack ecosystem. It provides a stable 5V DC output, which is critical for powering internal logic gates,...
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The SPS03-5V (Part Number: SPS03-5V) is a high-density regulated power supply module within the ABB Symphony Plus and Harmony Rack ecosystem. It provides a stable 5V DC output, which is critical for powering internal logic gates, microprocessors, and other digital circuitry in rack-mounted controllers. By isolating sensitive logic circuits from the main industrial power bus, the SPS03-5V ensures error-free processing and protects against data corruption from voltage fluctuations.
Swedish-engineered for industrial reliability, this module combines a slim 1.4 cm profile with robust internal design, including high-quality heat sinks and filtration components. Despite its compact footprint, the unit weighs 1 kg, reflecting its durable construction and optimized thermal performance.
| Parameter | Specification |
|---|---|
| Model Identification | SPS03-5V |
| Primary Function | Logic Power Supply for I/O and Control Modules |
| Module Width | 1.4 cm |
| Module Height | 14.67 cm |
| Module Depth | 19.7 cm |
| Unit Weight | 1.0 kg |
| Thermal Management | Natural convection within S+ cabinets |
| Circuit Protection | Integrated over-voltage and short-circuit safeguards |
| Hardware Series | Symphony Plus / Harmony Rack |
Stable 5V Output: Provides clean, low-noise power for internal CPUs, memory, and logic circuits.
Compact Design: Slim 1.4 cm width allows high-density integration in modular power assemblies.
Industrial Reliability: Swedish-engineered components with robust heat sinking and filtering.
Redundancy Support: Supports N+1 or parallel configurations for uninterrupted control logic power.
Protection: Built-in safeguards against over-voltage, short-circuit, and thermal overload.
Logic Power Supply: Supports the CPU, memory, and digital I/O of Symphony Plus/Harmony controllers.
Redundant Power Systems: Used in N+1 arrangements to ensure continuous DCS operation during module failure.
High-Density Cabinets: Optimized for tight mounting spaces in modular power bases.
Why is a dedicated 5V supply necessary?
Field devices often use 24V, but the internal semiconductors of control modules require precise 5V logic-level power. The SPS03-5V ensures stable operation of CPUs, memory, and digital I/O.
Can the SPS03-5V be used interchangeably with the 15V version?
No. Although the modules share the same physical footprint, the SPS03-5V outputs 5V. Using a 15V module in place of a 5V module could permanently damage the logic backplane or controllers.
Is the SPS03-5V suitable for redundant configurations?
Yes. It is commonly deployed in N+1 or parallel arrangements to ensure uninterrupted power for critical DCS logic.
