L3 Power Magnetics Super Isolation Transformers are shielded by a simple circuit configuration and have no moving components, providing fast response, automatic output current limiting and high reliability with complete isolation from the power line. Super isolators are ideal for noise suppression when equipment has internal voltage regulation from switching power supplies. All Power Magnetic units are available with single phase ratings from 120 VA to 20 kVA and three phase ratings from 3 kVA to 75 kVA.