Technical Parameters:
The document outlines the technical parameters for a series of electrical components, specifically fuses with part numbers ranging from H2BFgR160 to H2BFgR400. These fuses have current ratings from 160A to 400A and are pending safety approvals from TUV and cURus.

Product Variants:
The fuses are available in three configurations: with microswitch base, without microswitch base, and without a central indicator. Each configuration is denoted by a specific part number suffix (B or C).

Dimensions:
The dimensions are provided in millimeters for different configurations, with and without a central indicator. Key dimensions include lengths and widths with specified tolerances.

Electrical Characteristics:
The fuses operate at 1250V AC with an interrupting capacity of 100,000 amperes. They conform to standards IEC 60269-4, GB/T 13539.4, and UL 248-13.

Operational Class:
The class of operation is specified as gR, indicating the protection characteristics of the fuses.

Conventional Ratings:
The document specifies conventional time, current, non-fusing current, and fusing current for the fuses. For ratings between 160A and 400A, the conventional time is 3 hours, with a non-fusing current of 1.13 times the rated current and a fusing current of 1.6 times the rated current.