HRWK series is an outdoor low-voltage fuse type isolation switch, suitable for distribution systems with AC 50Hz, rated voltage of 0.5kV and below, and has both circuit isolation and short-circuit protection functions.
HRWK series isolating switch is widely used in low-voltage outdoor distribution scenarios due to its fuse protection integration, high protection, and low-cost maintenance. The selection needs to be comprehensively evaluated based on current capacity, environmental conditions, 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 | |||
| HRWK-0.5/400 | 0.5 | 400 | 4 | 5 | 2 | 3 |
| HRWK-0.5/630 | 0.5 | 630 | 4 | 5 | 2 | 3 |
| HRWK-0.5/800 | 0.5 | 800 | 4 | 5 | 2 | 3 |
Circuit isolation: Provide visible breakpoints to ensure safe maintenance.
Short circuit protection: Built in fuse quickly cuts off fault current, protecting transformers and low-voltage lines.
Off load switching: Supports switching on and off lines or low-voltage sides of transformers under no-load conditions.
Power distribution system: outdoor transformer low-voltage side protection and line switching.
Industrial electricity: Integrated in low-voltage distribution cabinets for use in non explosion risk areas.
In the field of new energy: isolation and protection of low-voltage circuits in photovoltaics and wind power
