Primary current: Secondary current: Standard approval: Maximum voltage: Frequency: Rated load: Class: Short-time thermal current: Rated security coefficient: | 5A-3000A 5A, 1A VDE0414, BS7626, IEC44-1 0.72/3KV 50-60Hz 2.5VA, 5VA, 10VA, 15VA 0.5, 1.0 Ith=60×Ih FS<5 |