1.attractive appearance 2.standard approval: BS7626,IEC44-1 3.good sale service Primary current: 30A,3000A Secondary current: 5A,1A Standard approval: BS7626,IEC44-1 Maximum voltage: 0.66KV Frequency: 50-60Hz Rated load: 2.5VA,15VA Class: 0.5, 1.0, 3.0 Short-time thermal current: lth=60×lh Rated security coefficient: Fs<5