This document introduces the uses and applications of RDT16 (RT16) filled enclosed tubular knife-shaped contact fuse, including its applicable voltage, current, and protection functions. It also provides the main technical parameters and maintenance requirements of the fuse.
The RDT16(RT16) sealed‑tube blade‑type fuse is intended for industrial electrical distribution equipment operating at 50 Hz with rated voltages of 500 V or 660 V and currents up to 630 A. It provides overload and short‑circuit protection and complies with GB13539.1 and related standards.
The manual details the main technical parameters, usage and maintenance procedures, physical dimensions, installation clearances, ordering information, and protection characteristic curves. It also specifies environmental limits, permissible installation orientations, and safety markings. This manual is written in Chinese.
| Rated Voltage | 500 V / 660 V |
|---|---|
| Rated Current | ≤ 630 A |
| Operating Temperature Range | -5 °C to +40 °C |
| Maximum Relative Humidity | ≤ 50 % at 40 °C |
| Minimum Creepage Distance | ≥ 12 mm |
| Minimum Electrical Clearance | ≥ 8 mm |
| Pollution Level | Level 3 |
| Installation Category | III |
The fuse is rated for 500 V or 660 V and a maximum current of 630 A.
A creepage distance of at least 12 mm and an electrical clearance of at least 8 mm must be maintained.
The surrounding air temperature must be between –5 °C and +40 °C, and relative humidity must not exceed 50 % at 40 °C.
When the fuse blows, the red indicator protrudes, indicating that the fuse element has melted.