C300474

Overview

The Mersen C300474 is a Protistor PSC semiconductor fuse-link designed for high-speed protection in power conversion equipment. It features a square body construction and adheres to North American style dimensions, specifically Size 31. The component is rated for 315 A current and operates at AC voltages of 690 VAC or 700 VAC. It provides an interrupting capacity of 200 kA and complies with URD/aR classification standards. This ultra-fast acting fuse requires a compatible holder for installation.

Feature Summary

• Ultra-fast acting response characteristic for sensitive semiconductor protection
• Square body design facilitating standardized mounting configurations
• High interrupting capacity ensuring safety during fault conditions
• Compliance with URD/aR classification for industrial applications

Applications

• Power conversion equipment protection
• Industrial electrical systems requiring high-speed fusing
• Semiconductor rectifier circuits
• High-voltage fuse applications

Procurement Notes

Verify that the specific order includes the necessary mounting hardware, as this fuse-link requires a separate holder for proper installation. Confirm compatibility with existing panel designs to ensure physical fitment within the designated space. Check voltage ratings against system specifications to guarantee operational safety under maximum load conditions.

Selection Notes

Select this component when ultra-fast interruption is required for semiconductor devices. Ensure the system voltage does not exceed 700 VAC. Verify that the available short-circuit current remains below the 200 kA rating. Confirm that the physical dimensions align with the designated Size 31 slot in the distribution board.

Part Context

This part belongs to the Mersen Protistor PSC series, which offers flexibility in equipment design. The series utilizes a square body format common in North American style applications. It serves as a specialized solution for protecting modern power electronics against overcurrent events while maintaining compact footprint requirements.

Replacement Considerations

Direct substitutes must match the 315 A rating, 700 VAC voltage, and Size 31 physical dimensions. Verify that any alternative component shares the same URD/aR classification and interrupting capacity to maintain circuit integrity and safety compliance.

FAQ

Does this fuse require a holder?

Yes, the C300474 fuse-link requires a compatible holder for installation and operation.

What is the interrupting capacity?

The fuse has an interrupting capacity of 200 kA.