Dry Type Transformer. Quiet performance. No-weld design - an industry first. Comprehensive factory testing assures quality. Easy, fast installation saves time. Clear, comprehensive documentation and labeling enhance safety.. Unique core and coil design makes QL transformers among the quietest available. Core and coil assemblies are mounted on rubber isolation pads to reduce noise. Bolted coil terminations are more reliable than welded terminations. Single-piece front/back is easily removable for service. Accessible mounting flanges with front/back slotted mounting holes make installation easier. 100% factory tested for shorts and coil integrity, current and loss, voltage, impedance and noise.. Type 2 drip-proof enclosure is standard; weathershield kits are available for conversion to Type 3 outdoor configuration. Qualified to the seismic requirements of IEEE-693-1997 and IBC-2003. Copper or aluminum windings. Copper ground strap. Robust packaging with top and edge protection. 220°C insulation system. 40°C ambient. 10kV-BIL. ANSI 61 grey enclosure. Meets CSA C802.2 efficiency standard. cUL certified to CSA C9 and CSA C22.2 No. 47.