HJDW6 series is an outdoor low-voltage fuse type isolation switch designed specifically for distribution lines with AC 50Hz, rated voltage of 500V and below. It is mainly used for short-circuit protection, overload protection, and circuit opening and closing operations under no-load conditions on the low-voltage side of transformers
HJDW6 series isolation switch is widely used in low-voltage distribution systems due to its compact design, high protection level, and fuse protection function. The selection should be comprehensively evaluated based on voltage and current levels, environmental pollution levels, and functional requirements.
| Type | Rated voltage(KV) | Rated current(A) | Impulse withstand voltage | 1 min power frequency withstand voltage | ||
| (KV) To earth | (KV) Across the isolating | (KV) To earth | (KV) Across the isolating | |||
| HJDW6-0.5/630 | 0.5 | 630 | 4 | 5 | 2 | 3 |
| HJDW6-0.5/800 | 0.5 | 800 | 4 | 5 | 2 | 3 |
| HJDW6-0.5/1000 | 0.5 | 1000 | 4 | 5 | 2 | 3 |
| HJDW6-0.5/1250 | 0.5 | 1250 | 4 | 5 | 2 | 3 |
| HJDW6-0.5/2000 | 0.5 | 2000 | 4 | 5 | 2 | 3 |
Implement physical isolation of circuits, provide visible breakpoints, and ensure maintenance safety.
Open and close no-load transformers or lines, responsible for short-circuit and overload protection tasks.
Power distribution system: transformer low-voltage side protection and line switching.
New energy projects: outdoor low-voltage distribution circuits such as wind power and photovoltaics.
Industrial scenario: Low voltage equipment power isolation without explosion risk
