... :Procelain&Steel Outline FN5-12R(L)Model Indoor AC HV load switch - fuse Model through a comprehensive and long-term pilot ... test evaluation, performance to IEC420 ≤ HV load switch - fuse current ≥ (1990 version) and GB3804 ≤ 3-63KV AC ... High Voltage ≥ standard load switch, compared with similar foreign products, technical data has reached ...