ABB'S TYPE QL TRANSFORMERS MEET DOE 2016 EFFICIENCY STANDARDS. THEY ARE AVAILABLE WITH ALUMINUM OR COPPER WINDINGS AND UTILIZE A UL RECOGNIZED 220 DEGREE CENTRIGRADE INSULATION SYSTEM-QUIET PERFORMANCE-OUTWARD-FACING MOUNTING FEET-CORE AND COIL ASSEMBLIES ARE MOUNTED ON RUBBER ISOLATION PADS TO REDUCE NOISE-BOLTED COIL TERMINATIONS-SINGLE-PIECE FRONT/BACK IS EASILY REMOVABLE FOR SERVICE-NEMA 2 DRIP-PROOF ENCLOSURE IS STANDARD WEATHERSHIELD KITS ARE AVAILABLE FOR CONVERSION TO NEMA 3R OUTDOOR CONFIGURATION--COPPER OR ALUMINUM WINDINGS-COPPER GROUND STRAP-ROBUST PACKAGING WITH TOP AND SIDE PROTECTION PROTECTS AGAINST SHIPPING DAMAGE-ACCESSIBLE MOUNTING FLANGES WITH FRONT/BACK SLOTTED MOUNTING HOLES MAKE INSTALLATION EASIER-100 PERCENTAGE FACTORY TESTED FOR SHORTS AND COIL INTEGRITY, CURRENT AND LOSS, VOLTAGE, IMPEDANCE AND NOISE.-CLEAR, COMPREHENSIVE DOCUMENTATION AND LABELING.