Product Overview:
The document provides technical specifications for the H3FH series semiconductor fuses, designed for high voltage DC applications. These fuses are rated for 2000V DC and current ratings ranging from 250A to 700A.

Specifications:
- Interrupting Capacity: 100,000 amperes at 2000V DC.
- Standards: Compliant with IEC 60269-4, GB/T 13539.4, and UL 248-13.

Dimensions:
- Diameter: 30mm ± 0.5mm
- Length: 171mm ± 3mm
- Threaded hole depth: 10.5-11.5mm

Design Variants:
- With center indicator base
- With central indicator, no microswitch base
- Without central indicator

Technical Parameters:
The table lists various part numbers (H3FH250 to H3FH700) with corresponding current ratings (250A to 700A). Each part number has options for configurations with or without microswitch bases and central indicators.

Safety Approvals:
- TUV and cURus certifications are pending for all listed models.

Key Notes:
- The document emphasizes the pending status of safety approvals, indicated by a circle symbol (○).