Bel Fuse / Power-One SPM3E2KS442 Modular High Power Supply (28V/27A)

The Bel Fuse/Power-One SPM3E2KS442 is a modular high-power supply designed to deliver a stable 28V output at 27A. This unit is part of a larger modular power system that utilizes a 300 VDC system power bus, which can be derived from either the AC utility line or a user-supplied 300 VDC source. This bus then feeds individual DC output modules, such as the SPM3E2KS442, which convert the bulk DC to the required output voltage and current. The modular design allows for extensive configuration, with the potential for over 10 million configurations available within the broader series, supporting up to 21 outputs per power supply. This particular model is suitable for applications requiring a reliable, efficient, and configurable power solution in a compact form factor.

### Technical Specifications

* **Manufacturer:** Bel Fuse / Power-One
* **Model:** SPM3E2KS442
* **Product Family:** SPM3 (Modular High Power Supply Series)
* **Output Voltage:** 28V
* **Output Current:** 27A
* **Maximum Output Power:** (This specific output module’s power can be inferred from the 28V * 27A, but explicit documentation for the module’s rating is not directly available in the provided snippets. However, the SPM3 series is listed as 1000 Watts in general).
* **System Power Bus:** 300 VDC

### Electrical Specifications

* **Input:** The system operates from an AC utility line or a user-supplied 300 VDC source.
* **Efficiency:** The broader SPM series boasts up to 99% Power Factor Correction (PFC) to meet EN60555.
* **Regulation:** Single outputs are fully regulated and isolated.
* **Current Sharing:** Parallelable outputs with current sharing capability.
* **Load Requirements:** No minimum loads required on most outputs.
* **Overvoltage Protection:** Not explicitly detailed for this specific module, but the overall series mentions EN60950/UL1950 approval. For other series within Bel Fuse, overvoltage protection modules are available and user-adjustable.

### Interfaces and Control

* **System Inhibit:** Capability for system inhibit and individual module output inhibit.
* **Module Control Signals:** Control signals are available for DC output modules.

### Physical and Environmental Specifications

* **Form Factor:** Modular, single width slot bank
* **Mounting:** Metric mounting available on selected models.
* **Vibration Testing:** Tested at 6 GRMS, 3 axis, 10Hz to 2000Hz.
* **Transient Protection:** Ruggedized AC input sections incorporate extensive transient protection.

### Compatibility and System Features

* **Modularity:** Modular construction allows for a vast number of configurations. The system uses separate switch-mode DC Output Modules to provide specific voltage and current ratings.
* **Approvals and Certifications:** EN60950/UL1950 approved, CE Marked to the Low Voltage Directive.
* **Reliability:** Demonstrated DC output module MTBF (Mean Time Between Failures) greater than 5 million hours.

Why Choose Aumictech for the Bel Fuse/Power-One SPM3E2KS442?
At Aumictech, we specialize in supplying high-end modular power supply equipment. Whether you need reliable 28V/27A output, robust system integration capabilities, or flexible configuration options, our team ensures the Bel Fuse/Power-One SPM3E2KS442 delivers maximum performance for your application.